 @@ -1,1624 +1,1625 @@
-$NetBSD: acronyms.comp,v 1.228 2019/01/28 12:17:28 sevan Exp $
+$NetBSD: acronyms.comp,v 1.229 2019/02/01 21:23:22 sevan Exp $
 WHS	three-way handshake
 VSB	8-state vestigial side band modulation
 AA	anti-aliasing
 AAA	authentication, authorization, [and] accounting
 AAT	average access time
 ABI	application binary interface
 ABR	available bit rate
 ABRT	automatic bug reporting tool
 AC	alternating current
 ACI	adjacent channel interferer
 ACID	atomicity, consistency, isolation, durability
 ACK	Amsterdam compiler kit
 ACK	acknowledgement
 ACL	access control list
 ACL	active current loop
 ACL	asynchronous connection less
 ACP	auxiliary control {process,program}
 ACPI	advanced configuration and power interface
 ACS	access control set
 ACU	automatic calling unit
 ADB	Apple desktop bus
 ADC	analog [to] digital converter
 ADD	acronym driven development
 ADO	active data objects
 ADP	automatic data processing
 ADPCM	adaptive differential pulse code modulation
 ADS	alternate data stream
 ADSL	asymmetric digital subscriber line
 ADT	abstract data type
 AER	advanced error reporting
 AES	Advanced Encryption Standard
 AFP	Apple Filing Protocol
 AFS	Andrew File System
 AGC	automatic gain control
 AGP	accelerated graphics port
 AI	analog input
 AI	artificial intelligence
 AL	access list
 AL	active link
 ALE	address latch enable
 ALS	ambient light sensor
 ALU	arithmetic and logical unit
 ALUA	asymmetric logical unit access
 AM	access method
 AM	alignment mask
 AM	amplitude modulation
 AMD	Advanced Micro Devices Inc
 AMDD	Agile model-driven development
 AMI	alternate mark inversion
 AMP	asymmetric multiprocessing
 AMQP	advanced message queuing protocol
 AMT	active management technology
 AN	Arabic number
 ANR	application not responding
 ANSI	American National Standards Institute
 AO	analog output
 AOL	Alert-on-LAN
 AOS	add or subtract
 AP	access point
 AP	application processor
 API	application programming interface
 APEI	ACPI platform error interface
 APIC	advanced programmable interrupt controller
 APIPA	automatic private IP addressing
 APM	advanced power management
 APM	application performance management
 APU	accelerated processing unit
 APT	advanced persistent threat
 AQM	active queue management
 ARAT	always running APIC timer
 ARC	adaptive replacement cache
 ARC	Advanced RISC Computing
 ARC	automatic reference counting
 ARM	Advanced RISC Machines
 ARP	Address Resolution Protocol
 ARPA	Advanced Research Projects Agency
 ARQ	automatic repeat request
 ARR	address range register
 ARU	audio response unit
 AS	autonomous system
 ASA	Adaptive Security Appliance
 ASAN	Address Sanitizer
 ASC	advanced smart cache
 ASCII	American Standard Code for Information Interchange
 ASD	agile software development
 ASE	advanced software environment
 ASF	alert standard format
 ASIC	application-specific integrated circuit
 ASK	amplitude shift keying
 ASLR	address space layout randomization
 ASN	autonomous system number
 ASPM	active state power management
 ASQ	automated software quality
 ASR	address space register
 AST	abstract syntax tree
 AST	asynchronous system trap
 AT	access time
 AT	advanced technology
 ATA	advanced technology attachment
 ATAPI	advanced technology attachment packet interface
 ATC	address translation cache
 ATM	asynchronous transfer mode
 ATX	advanced technology extended
 AV	anti virus
 AVL	Adelson-Velsky-Landis
 AVX	advanced vector extensions
 BA	byte align
 BAL	basic assembly language
 BAR	base address register
 BBS	bulletin board system
 BCC	blind carbon copy
 BCD	binary coded decimal
 BCR	byte count register
 BCS	base configuration space
 BD	baud
 BDD	binary decision diagram
 BDI	bit deinterleave
 BDUF	big design up front
 BEDO	burst extended data output
 BER	basic encoding rules
 BER	bit error {rate,ratio}
 BERT	boot error record table
 BFD	binary {file,format} descriptor
 BFKL	big fscking kernel lock
 BFS	breadth-first search
 BFT	binary file transfer
 BGA	ball grid array
 BGP	Border Gateway Protocol
 BGPSEC	BGP Security
 BIND	Berkeley Internet Name Daemon
 BIOS	Basic Input/Output System
 BIOS	built-in operating system
 BIST	built-in self-test
 BIU	bus interface unit
 BKDG	BIOS and kernel developer's guide
 BLAS	basic linear algebra subprograms
 BLC	back light control
 BLOB	binary large object
 BM	bus master
 BMC	baseboard management controller
 BMIC	bus master interface controller
 BN	boundary neutral
 BNF	Backus-Naur form
 BO	binary output
 BOF	beginning of file
 BOM	beginning of message
 BOM	byte order mark
 BP	base pointer
 BP	boot processor
 BPB	BIOS parameter block
 BPDU	bridge protocol data unit
 BPF	Berkeley Packet Filter
 BPI	bits per inch
 BPM	business process modelling
 BPS	bits per second
 BPSK	binary phase shift keying
 BQS	Berkeley quality software
 BRE	basic regular expression
 BS	backspace
 BS	binary sequence
 BSA	basic service area
 BSD	Berkeley Software Distribution
 BSDP	Boot Service Discovery Protocol
 BSF	bit scan forward
 BSOD	blue screen of death
 BSP	binary space partition
 BSP	board support package
 BSP	bootstrap processor
 BSR	bit scan reverse
 BSS	basic service set
 BSS	block started by symbol
 BSSID	basic service set identifier
 BT	BitTorrent
 BT	Bluetooth
 BT	bit test
 BTC	bit test [and] complement
 BTR	bit test [and] reset
 BTS	bit test [and] set
 BTS	bug tracking system
 BW	bandwidth
 BWM	block-write mode
 BUAG	big ugly ASCII graphic
 CA	certificate authority
 CAD	computer-aided design
 CAM	computer assisted manufacturing
 CAM	conditional access module
 CAM	content addressable memory
 CARP	Common Address Redundancy Protocol
 CAS	column address strobe
 CAS	compare and swap
 CAS	computer algebra system
 CASE	computer aided software engineering
 CAU	control access unit
 CAV	constant angular velocity
 CBC	cipher block chaining
 CBR	constant bit rate
 CC	carbon copy
 CCD	charge coupled device
 CCI	co-channel interferer
 CCNUMA	cache-coherent non-uniform memory access
 CD	cache disable
 CD	compact disc
 CDDA	compact disc digital audio
 CDMA	code division multiple access
 CDP	Cisco Discovery Protocol
 CDRAM	cache dynamic random access memory
 CER	canonical encoding rules
 CF	compact flash
 CFB	cipher feedback
 CFG	context-free grammar
 CFG	control-flow graph
 CFI	control-flow integrity sanitizer
 CG	control gate
 CGA	Color Graphics Adapter
 CGI	common gateway interface
 CGN	Carrier-Grade NAT
 CHAP	Challenge-Handshake Authentication Protocol
 CHS	cylinder/head/sector
 CI	continuous integration
 CI	{common,component} interface
 CIDR	Classless Inter-Domain Routing
 CIF	common intermediate format
 CIFS	Common Internet File System
 CIL	common intermediate language
 CIR	carrier-to-interference ratio
 CIS	contact image sensor
 CISC	complex instruction set {computer,computing}
 CJK	Chinese, Japanese, [and] Korean
 CLF	common log format
 CLI	command line interface
 CLR	common language runtime
 CLTT	closed loop thermal throttling
 CLUT	color look-up table
 CLV	constant linear velocity
 CM	configuration management
 CMA	concert multithread architecture
 CMC	chassis management controller
 CMC	corrected machine check
 CMS	{configuration,content,course} management system
 CMI	control {management,method} interface
 CMOS	complementary metal-oxide-semiconductor
 CMP	chip multi-processing
 CMS	content management system
 CMYK	cyan magenta yellow black
 CN	{common,canonical} name
 CNC	computer numerical control
 CNR	carrier-to-noise ratio
 COF	current operating frequency
 COFDM	coded orthogonal frequency division multiplexing
 COFF	common object file format
 COM	component object model
 COMA	cache-only memory architecture
 CORBA	common object request broker architecture
 COS	class of service
 COW	copy-on-write
 CP	continuous pilot
 CPB	core performance boost
 CPC	central processor complex
 CPC	cpu performance counters
 CPE	common phase error
 CPE	common platform enumeration
 CPER	common platform error record
 CPG	clock pulse generator
 CPI	cycles per instruction
 CPL	current privilege level
 CPLD	complex programmable logic device
 CPP	C preprocessor
 CPS	characters per second
 CPT	command pass through
 CPU	central processing unit
 CR	carriage return
 CRC	cyclic redundancy check
 CRL	carrier recovery loop
 CRLF	carriage return line feed
 CRT	cathode ray tube
 CRUD	create, read, update, and delete
 CS	cable select
 CS	chip select
 CS	code segment
 CS	computer science
 CSDL	{common,conceptual} schema definition language
 CSI	channel state information
 CSI	common system interface
 CSMA	carrier sense multiple access
 CSMA/CA	carrier sense multiple access with collision avoidance
 CSMA/CD	carrier sense multiple access with collision detection
 CSR	control [and] status registers
 CSRG	Computer Systems Research Group
 CSS	cascading style sheets
 CSV	comma-separated values
 CTM	close to metal
 CTR	counter [mode]
 CTS	clear to send
 CUA	common user access
 CUT	coordinated universal time
 CV	control voltage
 CVE	common vulnerabilities and exposures
 CVS	Concurrent Versions System
 DA	destination address
 DAA	distributed application architecture
 DAB	digital audio broadcasting
 DAC	digital [to] analog converter
 DAC	discretionary access control
 DAD	duplicate address detection
 DANE	DNS-based Authentication of Named Entities
 DAO	disk at once
 DAP	Directory Access Protocol
 DAT	digital audio tape
 DAT	dynamic acceleration technology
 DB	database
 DBA	database administrator
 DBA	dynamic bandwidth allocation
 DBB	data bus buffer
 DBC	design by contract
 DBL	dynamic buffer limiting
 DBMS	database management system
 DBS	database server
 DC	direct current
 DCC	Direct Client-to-Client
 DCC	direct cable connect
 DCD	data carrier detect
 DCE	data control equipment
 DCE	distributed computing environment
 DCIM	data center infrastructure management
 DCIM	digital camera images
 DCL	Digital Command Language
 DCOM	distributed component object model
 DCOP	Desktop COmmunication Protocol
 DCS	data collection systems
 DCT	discrete cosine transform
 DCU	data cache unit
 DDC	display data channel
 DDE	dynamic data exchange
 DDK	device driver kit
 DDL	data description language
 DDR	double data rate
 DDS	direct digital sound
 DDWG	Digital Display Working Group
 DE	debugging extensions
 DE	desktop environment
 DEA	data encryption algorithm
 DEC	Digital Equipment Corporation
 DEK	data encryption key
 DEP	data execution prevention
 DER	distinguished encoding rules
 DES	Data Encryption Standard
 DF	don't fragment
 DFA	deterministic finite automaton
 DFC	data flow control
 DFS	depth first search
 DFS	distributed file system
 DFSAN	Data Flow Sanitizer
 DFT	diagnostic function test
 DFT	discrete Fourier transform
 DGL	data generation language
 DH	Diffie-Hellman
 DHCP	Dynamic Host Configuration Protocol
 DIFS	distributed inter-frame space
 DIMM	dual inline memory module
 DIRT	design in real time
 DL	diode logic
 DL	discrete logarithm
 DL	download
 DLE	data link escape
 DLL	dynamic link library
 DLP	discrete logarithm problem
 DMA	direct memory access
 DMI	desktop management interface
 DMS	document management system
 DMT	discrete multitone modulation
 DMU	data management layer
 DNARD	Digital network appliance reference design
 DND	drag and drop
 DNLC	directory name lookup cache
 DNS	Domain Name System
 DNSSEC	DNS Security Extensions
 DOE	distributed object environment
 DOF	data over fibre
 DOM	document object model
 DOS	denial of service
 DOS	disk operating system
 DP	DisplayPort
 DPC	deferred procedure call
 DPCM	differential pulse code modulation
 DPD	dead peer detection
 DPI	deep packet inspection
 DPI	dots per inch
 DPL	descriptor privilege level
 DPS	Display PostScript
 DPST	display power savings technology
 DRAAS	disaster recovery as a service
 DRAM	dynamic random access memory
 DRBG	deterministic random bit generator
 DRI	direct rendering infrastructure
 DRM	digital rights management
 DRRS	display refresh rate switching
 DS	debug store
 DSA	digital signature algorithm
 DSAP	destination service access point
 DSB	double-sideband modulation
 DSDT	differentiated system descriptor table
 DSL	dataset and snapshot layer
 DSL	digital subscriber line
 DSL	domain specific language
 DSLAM	digital subscriber line access multiplexer
 DSN	delivery status notification
 DSO	dynamic shared object
 DSP	digital signal processor
 DSSS	direct sequence spread spectrum
 DTD	document type definition
 DTE	data terminal equipment
 DTE	dumb terminal emulator
 DTL	diode-transistor logic
 DTLS	datagram transport layer security
 DTS	digital thermal sensor
 DUT	device under test
 DVB	digital video broadcasting
 DVCS	distributed version control system
 DVD	digital versatile disc
 DVFS	dynamic voltage and frequency scaling
 DVI	device independent
 DVI	Digital Visual Interface
 DVR	digital video recorder
 E-XER	extended XML encoding rules
 EABI	embedded-application binary interface
 EAI	Email Address Internationalization
 EAI	Enterprise Application Integration
 EAP	Extensible Authentication Protocol
 EAPOL	EAP over Lan
 EBCDIC	Extended Binary Coded Decimal Interchange Code
 EBDA	Extended BIOS Data Area
 EBR	extended boot record
 EC	elliptic curve
 ECC	elliptic curve cryptography
 ECC	error correction code
 ECDH	elliptic curve Diffie-Hellman
 ECDL	elliptic curve discrete logarithm
 ECDLP	elliptic curve discrete logarithm problem
 ECDSA	elliptic curve digital signature algorithm
 ECL	emitter-coupled logic
 ECN	explicit congestion notification
 ECP	enhanced capability port
 ECS	enhanced chip set
 ECS	extended configuration space
 EDAC	error detection and correction
 EDAT	enhanced dynamic acceleration technology
 EdDSA	Edwards curve digital signature algorithm
 EDGE	explicit data graph execution
 EDID	extended display identification data
 EDO	extended data out
 EDS	electronical data sheet
 EEE	energy efficient ethernet
 EEPROM	electrically erasable programmable read only memory
 EFI	extensible firmware interface
 EFL	emitter follower logic
 EFM	eight to fourteen modulation
 EGA	Enhanced Graphics Adapter
 EGP	exterior gateway protocol
 EH	extension header
 EIDE	enhanced IDE
 EISA	extended industry standard architecture
 EINJ	error injection table
 ELF	executable and linking format
 ELS	entry level system
 EMI	electro-magnetic interference
 EMP	electro-magnetic pulse
 EMR	electro-magnetic radiation
 EMACS	Editor MACroS
 EOF	end of file
 EOI	end of interrupt
 EOIS	end of interactive support
 EOL	end of life
 EOL	end of line
 EOT	end of transmission
 EPIC	explicitly parallel instruction computing
 EPP	enhanced parallel port
 EPRML	extended partial response, maximum likelihood
 EPROM	erasable programmable read only memory
 ERD	emergency recovery disk
 ERD	entity relationship diagram
 ERE	extended regular expression
 ERST	error record serialization table
 ESAN	Efficiency Sanitizer
 ESB	enterprise service bus
 ESDI	enhanced small disk interface
 ESDRAM	enhanced synchronous dynamic random access memory
 ESI	enclosure services interface
 ESS	electronic switching system
 ESS	extended service set
 ESSID	extended service set identifier
 EST	enhanced speedstep
 ETL	extract, transform, load
 EU	execution unit
 EULA	end user license agreement
 FAT	file allocation table
 FBRAM	frame buffer random access memory
 FCIF	full common intermediate format
 FCL	fiber channel loop
 FCS	frame check sequence
 FDC	floppy disk controller
 FDD	floppy disk drive
 FDDI	fiber distributed data interface
 FDE	full disk encryption
 FDT	flattened device tree
 FEA	finite element analysis
 FEC	forward error correction
 FET	field-effect transistor
 FF	finite field
 FF	form feed
 FFDH	finite-field Diffie-Hellman
 FFH	functional fixed hardware
 FFI	foreign function interface
 FFM	focus follows mouse
 FFS	Fast File System
 FFS	find first set
 FFT	fast Fourier transform
 FG	floating gate
 FHSS	frequency hop spread spectrum
 FID	frequency identifier
 FIFO	first in, first out
 FILO	first in, last out
 FIPS	Federal Information Processing Standards
 FIR	fast infrared
 FLOPS	floating [point] operations per second
 FLOSS	free/libre/open source software
 FM	frequency modulation
 FMR	false match rate
 FOSS	free/open source software
 FPGA	field programmable gate array
 FPM	fast page mode
 FPR	floating point register
 FPU	floating point unit
 FQDN	fully qualified domain name
 FRR	false rejection rate
 FRU	field replaceable unit
 FS	file system
 FSB	front side bus
 FSCK	file system check
 FSF	Free Software Foundation
 FSK	frequency shift keying
 FSM	finite-state machine
 FTA	fault tree analysis
 FTL	flash translation layer
 FTP	File Transfer Protocol
 FTPS	File Transfer Protocol Secure
 FUS	fast user switching
 FWH	firmware hub
 FWS	folding white space
 GAL	generic array logic
 GAS	generic address structure
 GC	garbage collector
 GCM	Galois counter mode
 GCR	group-coded recording
 GDI	Graphics Device Interface
 GDT	global descriptor table
 GEM	graphics environment manager
 GEM	graphics execution manager
 GENA	general event notification architecture
 GHC	Glasgow Haskell compiler
 GHES	generic hardware error source
 GIC	generic interrupt controller
 GID	group identifier
 GIF	graphics interchange format
 GMCH	graphics and memory controller hub
 GNU	GNU's Not Unix
 GOP	graphics output protocol
 GOT	global offset table
 GPE	general purpose event
 GPF	general protection fault
 GPG	GNU Privacy Guard
 GPL	[GNU] General Public License
 GPR	general purpose register
 GPS	generalized processor sharing
 GPT	GUID partition table
 GPU	graphics processing unit
 GR	golden ratio
 GRE	generic routing encapsulation
 GSI	global system interrupt
 GUI	graphical user interface
 GUID	globally unique identifier
 GVFS    git virtual file system
 HA	high availability
 HAL	hardware abstraction layer
 HAT	hashed array tree
 HATEOAS	hypermedia as the engine of application state
 HBA	host bus adapter
 HCF	halt and catch fire
 HCI	host controller interface
 HCI	human-computer interaction
 HCL	hardware compatibility list
 HDCP	High-bandwidth Digital Content Protection
 HDD	hard disk drive
 HDL	hardware description language
 HDMI	High-Definition Multimedia Interface
 HDTV	high-definition television
 HECI	host embedded controller interface
 HEST	hardware error source table
 HF	high frequency
 HFM	highest frequency mode
 HID	human interface device
 HKP	HTTP Keyserver Protocol
 HLL	high-level language
 HMA	high memory area
 HMI	human-machine interface
 HOOD	hierarchical object oriented design
 HP	Hewlett-Packard
 HPC	high performance computing
 HPET	high precision event timer
 HSM	hardware security module
 HSM	hierarchical storage management
 HT	hyper-threading
 HTC	hardware thermal control
 HTCC	high temperature co-fired ceramic
 HTML	HyperText Markup Language
 HTT	hyper-threading technology
 HTTP	Hypertext Transfer Protocol
 HTTPS	Hypertext Transfer Protocol Secure
 HVM	hardware virtual machine
 HVDS	High-Voltage Differential Signaling
 HWASAN	Hardware-assisted Address Sanitizer
 HZ	Hertz
 I2O	intelligent input/output
 IA	information assurance
 IAAS	infrastructure as a service
 IANA	Internet Assigned Numbers Authority
 IBC	iterated block cipher
 IBM	International Business Machines
 IBS	instruction based sampling
 IBSS	independent basic service set
 IC	integrated circuit
 ICA	independent computer architecture
 ICB	Internet Citizen's Band
 ICE	in-circuit emulator
 ICE	internal compiler error
 ICH	I/O controller hub
 ICMP	Internet Control Message Protocol
 ICT	information and communications technology
 ICW	initialization command word
 IDA	Intel dynamic acceleration
 IDCMP	Intuition direct communication message port
 IDE	integrated development environment
 IDE	integrated drive electronics
 IDPS	intrusion detection [and] prevention system
 IDRP	inter-domain routing protocol
 IDS	intrusion detection system
 IDT	interrupt descriptor table
 IE	Internet Explorer
 IEC	International Electrotechnical Commission
 IEEE	Institute of Electrical and Electronics Engineers
 IESG	Internet Engineering Steering Group
 IETF	Internet Engineering Task Force
 IF	intermediate frequency
 IFCM	isochronous flow control mode
 IFF	Interchange File Format
 IFS	internal field separator
 IGD	Internet gateway device
 IGMP	Internet Group Management Protocol
 IGP	interior gateway protocol
 IHV	independent hardware vendor
 IKE	Internet key exchange
 ILM	internal loopback mode
 ILOM	integrated lights-out management
 ILP	instruction level parallelism
 IM	instant messaging
 IMAP	Internet Message Access Protocol
 IMC	integrated memory controller
 IMCR	interrupt mode configuration register
 IMR	interrupt mask register
 IMS	information management system
 IMSI	international mobile subscriber identity
 INCITS	InterNational Committee for Information Technology Standards
 IO	input/output
 IOCTL	input/output control
 IOMMU	input/output memory management unit
 IOT	Internet of Things
 IP	Internet Protocol
 IP	intellectual property
 IPC	instructions per cycle
 IPC	interprocess communication
 IPE	integrated programming environment
 IPI	intelligent peripheral interface
 IPI	interprocessor interrupt
 IPL	Initial Program Load
 IPL	Interrupt Priority Level
 IPMB	Intelligent Platform Management Bus
 IPMI	Intelligent Platform Management Interface
 IPNG	Internet Protocol, Next Generation
 IPS	in-plane switching
 IPS	intrusion prevention system
 IPSEC	Internet Protocol Security
 IRC	Internet Relay Chat
 IRDA	infrared data association
 IRQ	interrupt request
 IRQL	interrupt request level
 IRR	interrupt request register
 IRTF	Internet Research Task Force
 IS	information system
 ISA	industry standard architecture
 ISA	instruction set architecture
 ISDN	integrated services digital network
 ISI	inter-symbol interference
 ISM	industrial, scientific, [and] medical
 ISN	initial serial number
 ISO	International Standards Organization
 ISOC	Internet Society
 ISP	Internet service provider
 ISR	in-service register
 ISR	interrupt service routine
 IST	interrupt stack table
 ISV	independent software vendor
 IT	information technology
 ITB	Intel Turbo Boost
 ITIL	information technology infrastructure library
 ITP	in-target probe
 ITSM	IT service management
 IV	initialization vector
 IVT	interrupt vector table
 JBOD	just a bunch of disks
 JFET	junction [gate] field-effect transistor
 JIT	just in time
 JPEG	Joint Photographic Experts Group
 JRE	Java Runtime Environment
 JSON	JavaScript Object Notation
 JTAG	joint test action group
 KASLR	kernel address space layout randomization
 KB	keyboard
 KB	kilobyte
 KBD	keyboard
 KBD	kilobaud
 KCS	keyboard controller style
 KLOC	thousand lines of code
 KMS	kernel-mode setting
 KPI	kernel programming interface
 KVA	kernel virtual address
 KVM	kernel virtual machine
 KVM	kernel virtual memory
 KVM	keyboard, video, [and] mouse
 LAMP	Linux Apache MySQL {Perl,PHP,Python}
 LAN	local area network
 LAPIC	local advanced programmable interrupt controller
 LAR	load access rights
 LBA	logical block addressing
 LBS	location-based service
 LCD	liquid crystal display
 LCP	link control protocol
 LDA	local delivery agent
 LDAP	Lightweight Directory Access Protocol
 LDR	light-dependent resistor
 LDT	local descriptor table
 LE	logical extent
 LED	light emitting diode
 LELL	low energy link layer
 LER	label edge router
 LF	line feed
 LF	low frequency
 LFM	lowest frequency mode
 LFN	long file names
 LFO	low-frequency oscillation
 LFS	log-structured file system
 LFU	least frequently used
 LHP	loop heat pipe
 LIFO	last in, first out
 LILO	LInux LOader
 LILO	last in, last out
 LINT	local interrupt
 LIR	local Internet registry
 LISP	LISt Processor
 LISP	Locator/ID Separation Protocol
 LKM	{Linux,loadable} kernel module
 LKML	Linux kernel mailing list
 LL	load linked
 LL/SC	load linked/store conditional
 LLC	logical link control
 LLDP	link layer discovery protocol
 LLF	low level format
 LLMNR	link-local multicast name resolution
 LLVM	Low Level Virtual Machine
 LM	long mode
 LMM	link management mode
 LMP	link management protocol
 LNO	loop nest optimization
 LOC	lines of code
 LOM	lights-out management
 LPE	Linux performance events
 LPC	low pin count
 LPS	local positioning system
 LRC	longitudinal redundancy check
 LRM	left-to-right mark
 LRO	left-to-right override
 LRU	least recently used
 LSAN	Leak Sanitizer
 LSB	Linux standards base
 LSB	least significant {bit,byte}
 LSI	large scale integration
 LSL	load segment limit
 LSM	log structured merge
 LSN	Large Scale NAT
 LSN	log sequence number
 LSR	label switch router
 LTCC	low temperature co-fired ceramic
 LTO	linear tape-open
 LTO	link time optimization
 LTR	left to right
 LTR	load task register
 LTR	letter(-sized paper)
 LTS	long term support
 LUA	Lua Uppercase Accident
 LUN	logical unit number
 LV	logical volume
 LVM	logical volume management
 LVT	local vector table
 LVDS	Low-Voltage Differential Signaling
 LWP	light-weight process
 LZW	Lempel Ziv Welch
 MAC	mandatory access control
 MAC	{media,medium} access control
 MAC	message authentication {check,code}
 MADT	multiple APIC descriptor table
 MB	megabyte
 MBA	multi-boot agent
 MBR	master boot record
 MBS	megabits per second
 MC	memory controller
 MCA	machine check architecture
 MCA	MicroChannel architecture
 MCC	multiversion concurrency control
 MCE	machine check exception
 MCGA	Multi-Color Graphics Array
 MCH	memory controller hub
 MCM	multi-chip module
 MCQ	memory controlled queue
 MD	machine-dependent
 MD-SAL	model-driven service abstraction layer
 MDA	mail delivery agent
 MDA	Monochrome Display Adapter
 MDC	Management Data Clock
 MDI	Medium Dependent Interface
 MDI-X	Medium Dependent Interface Crossover
 MDIO	Management Data Input/Output
 MDMX	MIPS Digital Media eXtension
 MDRAM	multibank dynamic random access memory
 MESI	modified, exclusive, shared, invalid
 MFC	merge from current
 MFC	Microsoft Foundation Classes
 MFM	modified frequency modulation
 MFU	most frequently used
 MI	machine-independent
 MIB	management information base
 MIC	message integrity {check,code}
 MID	mobile Internet device
 MIDI	musical instrument digital interface
 MIF	management information format
 MII	media independent interface
 MIM	man in the middle
 MIMD	multiple instruction, multiple data
 MIME	Multipurpose Internet Mail Extensions
 MIMO	multiple input multiple output
 MIPS	million instructions per second
 MIPS	Microprocessor without Interlocked Pipeline Stages
 MISD	multiple instruction, single data
 MIT	Massachusetts Institute of Technology
 MITM	man in the middle
 ML	machine language
 ML	machine learning
 ML	mailing list
 ML	markup language
 ML	maximum likelihood
 MLC	multi-level cell
 MLD	multicast listener discovery
 MLHP	micro loop heat pipe
 MMF	multi-mode fiber
 MMIC	monolithic microwave integrated circuit
 MMIO	memory mapped input/output
 MMORPG	massive multiplayer online role playing game
 MMU	memory management unit
 MMX	matrix math extension
 MMX	multimedia extension
 MMX	multiple math extension
 MO	magneto-optical
 MOESI	modified, owned, exclusive, shared, invalid
 MOF	maximum operating frequency
 MOSFET	metal-oxide-semiconductor field-effect transistor
 MOSI	modified, owned, shared, invalid
 MP	multi-platform
 MP	multiplayer
 MP	{multiprocessing,multiprocessor}
 MPEG	moving picture experts group
 MPI	message passing interface
 MPLS	Multiprotocol Label Switching
 MPP	massively parallel processor
 MPS	memory pool system
 MPS	multiprocessor specification
 MQTT	Message Queuing Telemetry Transport
 MR	modem ready
 MRU	most recently used
 MS	Microsoft
 MSAN	Memory Sanitizer
 MSB	most significant {bit,byte}
 MSC	message sequence chart
 MSE	mean square error
 MSF	minutes seconds frames
 MSI	message signaled interrupt
 MSI	modified, shared, invalid
 MSR	{machine state,model-specific} register
 MSS	maximum segment size
 MSTP	Multiple Spanning Tree Protocol
 MT	machine translation
 MTA	mail transfer agent
 MTBF	mean time between failures
 MTP	media transfer protocol
 MTRR	memory type range register
 MTTF	mean time to failure
 MTU	maximum transmission unit
 MUA	mail user agent
 MUD	multi-user domain
 MVCC	multiversion concurrency control
 MWE	module width encoding
 MX	mail exchange
 NACK	negative acknowledgement
 NAN	not a number
 NAPT	Network Address Port Translation
 NAS	network attached storage
 NAT	network address translation
 NAV	network allocation vector
 NC	numerical control
 NCO	numerically-controlled oscillator
 NCP	Network Control Protocol
 NCQ	native command queuing
 ND	neighbor discovery
 NDFA	nondeterministic finite automaton
 NE	numeric error
 NEWS	Network extensible Window System
 NFA	nondeterministic finite automaton
 NFC	near-field communication
 NFCI	no functional change intended
 NFS	network file system
 NFV	network function virtualization
 NIA	next instruction address
 NIC	network information center
 NIC	network interface card
 NIDS	network intrusion detection system
 NIP	network interface protocol
 NIPS	network intrusion prevention system
 NIS	network information service
 NIST	National Institute of Standards and Technology
 NLS	native language support
 NMI	non-maskable interrupt
 NNTP	Network News Transfer Protocol
 NOC	network operations center
 NOP	no operation
 NOS	network operating system
 NP	nondeterministic polynomial time
 NRND	not recommended for new designs
 NRZ	non-return to zero
 NSA	nation-state adversary
 NSA	no such agency
 NSA	National Security Agency
 NTM	non-deterministic Turing machine
 NTP	Network Time Protocol
 NUMA	non-uniform memory access
 NVRAM	non-volatile random access memory
 NW	not write-through
 NX	no execute
 OAEP	optimal asymmetric encryption padding
 OAM	operations, administration, and {management,maintenance}
 OBO	off by one
 OBOE	off by one error
 OCL	object constraint language
 OCR	optical character recognition
 ODCM	on-demand clock modulation
 ODT	on-die termination
 OEM	original equipment manufacturer
 OFB	output feedback
 OFDM	orthogonal frequency division multiplexing
 OFET	organic field-effect transistor
 OLAP	online analytical processing
 OLE	object linking and embedding
 OLTP	online transaction processing
 ONFI	open nand flash interface
 OO	OpenOffice
 OO	object oriented
 OOB	out of band
 OOE	out of order execution
 OOM	out of memory
 OOO	OpenOffice.org
 OOP	object oriented programming
 OOPS	object oriented programming systems
 OOSE	object oriented software engineering
 OPM	operations per minute
 OPS	operations per second
 OQL	Object Query Language
 ORB	object request broker
 ORM	object-relational mapping
 OS	operating system
 OSD	open source definition
 OSF	open software foundation
 OSI	Open Source Initiative
 OSI	open systems interconnection
 OSPF	open shortest path first
 OSPM	OS power management
 OSS	open sound system
 OSS	open source software
 OSVW	operating system visible workarounds
 OTP	one time password
 OTP	open telecom platform
 OU	organizational unit
 OUI	organizationally unique identifier
 OWL	Web Ontology Language
 P2P	PCI to PCI
 P2P	peer to peer
 PA	phase accumulator
 PA	physical address
 PAAS	platform as a service
 PAC	phase-amplitude converter
 PAE	physical address extension
 PAL	phase alternating line
 PAL	programmable array logic
 PAM	pluggable authentication modules
 PAM	pulse amplitude modulation
 PAP	password authentication protocol
 PAT	page attribute table
 PAT	port address translation
 PATA	parallel ATA
 PAX	portable archive exchange
 PBE	pending break encoding
 PBE	programming by example
 PC	personal computer
 PC	program counter
 PCB	printed circuit board
 PCB	process control block
 PCB	Protocol Control Block
 PCC	Portable C Compiler
 PCD	page-level cache disable
 PCE	path computation element
 PCE	performance-monitor counter enable
 PCEP	Path Computation Element Protocol
 PCH	platform controller hub
 PCI	peripheral component interconnect
 PCM	phase change memory
 PCM	pulse code modulation
 PCMCIA	Personal Computer Memory Card International Association
 PCP	Port Control Protocol
 PD	public domain
 PDA	personal digital assistant
 PDA	pushdown automaton
 PDAG	propositional directed acyclic graph
 PDB	power distribution board
 PDF	portable document format
 PDM	pulse-duration modulation
 PDN	pull-down network
 PDP	page {descriptor,directory} page
 PDS	product data sheet
 PDU	protocol data unit
 PE	protection enable
 PEAP	Protected EAP
 PECI	platform environment control interface
 PEP	protocol extension protocol
 PER	packed encoding rules
 PFS	perfect forward secrecy
 PGAS	partitioned global address space
 PGE	page global enable
 PGP	Pretty Good Privacy
 PHB	PCI host bridge
 PHP	PHP: Hypertext Preprocessor
 PIC	performance instrumentation counters
 PIC	position independent code
 PIC	programmable interrupt controller
 PICNIC	problem in chair, not in computer
 PID	process id
 PIE	position independent executable
 PIL	Priority Interrupt Level
 PIM	personal information manager
 PIM	platform-independent model
 PIO	programmed input/output
 PIPT	physically indexed, physically tagged
 PIQ	prefetch input queue
 PIT	programmable interrupt timer
 PIV	personal identity verification
 PIX	Private Internet eXchange
 PKCS	public-key cryptography standards
 PKI	public key infrastructure
 PLC	programmable logic controller
 PLD	programmable logic device
 PLL	phase locked loop
 PLRU	pseudo LRU
 PLTM	package level thermal management
 PM	power management
 PM	{phase,pulse} modulation
 PMC	performance monitoring counters
 PME	power management event
 PMEG	page map entry group
 PMI	performance monitoring infrastructure
 PMI	platform management interrupt
 PMIO	port-mapped input/output
 PMT	photo-multiplier tube
 PMU	performance monitoring units
 PMU	power management unit
 PNG	portable network graphics
 PNP	plug and play
 POE	power over ethernet
 POF	probability of failure
 POP	Post Office Protocol
 POP	power on password
 POSIX	Portable Operating System Interface [for Unix]
 POST	power on self test
 POTS	plain old telephone system
 POWER	Performance Optimization With Enhanced RISC
 POWERPC	Performance Optimization With Enhanced RISC - Performance Computing
 PP	pair programming
 PPB	PCI [to] PCI bridge
 PPC	PowerPC
 PPC	Power Performance Computing
 PPI	pixels per inch
 PPM	pages per minute
 PPP	Point-to-Point Protocol
 PPPOA	Point-to-Point Protocol over ATM
 PPPOE	Point-to-Point Protocol over Ethernet
 PPU	physics processing unit
 PRAM	Parameter RAM
 PRBS	pseudorandom bit sequence
 PRG	pseudorandom generator
 PRF	pseudorandom function [family]
 PRML	partial response, maximum likelihood
 PRN	pseudorandom {noise,number}
 PRNG	pseudorandom number generator
 PROM	programmable read only memory
 PRP	pseudorandom permutation
 PRU	Programmable Realtime Unit
 PS	PostScript
 PSD	power spectral density
 PSE	page size extensions
 PSK	phase shift keying
 PSK	pre-shared key
 PSTN	public switched telephone network
 PSW	program status word
 PTE	page table entry
 PTLA	pseudo top level aggregator
 PTP	page table page
 PTV	perceived target value
 PU	processing unit
 PUC	personal unblocking code
 PUN	physical unit number
 PV	physical volume
 PVG	physical volume group
 PVI	protected-mode virtual interrupt
 PVST	Per-VLAN Spanning Tree
 PWM	pulse width modulation
 PXE	preboot execution environment
 QA	quality assurance
 QAM	quadrature amplitude modulation
 QAM	quality assurance management
 QBE	query by example
 QC	quality control
 QDI	quasi delay insensitive
 QCIF	quarter common intermediate format
 QOS	quality of service
 QVL	qualified vendor list
 R/O	read only
 R/W	read/write
 RA	receiver address
 RA	remote assistance
 RA	resource affinity
 RA	router advertisement
 RAD	rapid application development
 RAID	redundant array of {independent,inexpensive} disks
 RAM	random access memory
 RAS	reliability, availability and serviceability
 RAS	remote access service
 RAS	restartable atomic sequence
 RAS	row address strobe
 RBF	radial basis function
 RBT	red-black tree
 RC	release candidate
 RC	remote control
 RC	run commands
 RCS	Revision Control System
 RCS	revision control system
 RCU	read, copy, update
 RDB	Rigid Disk Block
 RDBMS	relational database management system
 RDF	Resource Description Framework
 RDM	relational data model
 RDMA	remote direct memory access
 RDRAM	Rambus DRAM
 RE	regular expression
 REST	representational state transfer
 RF	radio frequency
 RFI	radio frequency interference
 RFO	request for ownership
 RGB	red green blue
 RGBA	red green blue alpha
 RGMII	reduced gigabit media independent interface
 RH	read hit
 RHEL	Red Hat Enterprise Linux
 RHL	Red Hat Linux
 RIB	routing information base
 RIFF	Resource Interchange File Format
 RIP	Raster Image Processor
 RIP	Routing Information Protocol
 RIR	regional Internet registry
 RISC	reduced instruction set {computer,computing}
 RKM	ROM Kernel Manual
 RLE	run length encoding
 RLL	run length limited
 RLO	right-to-left override
 RM	read miss
 RMCP	Remote Management Control Protocol
 RMI	remote method invocation
 RMO	Relaxed Memory Ordering
 RMPM	rapid memory power management
 RMS	root mean square
 RMW	read, modify, write
 RNG	random number generator
 ROM	read only memory
 RPC	remote procedure call
 RPKI	resource PKI
 RPL	requested privilege level
 RPM	revolutions per minute
 RPN	reverse Polish notation
 RPVST	Rapid Per-VLAN Spanning Tree
 RR	random replacement
 RR	round robin
 RS	relay station
 RSA	Rivest, Shamir, [and] Adleman
 RSIP	Realm Specific IP
 RSN	Robust Secure Network
 RSS	really simple syndication
 RSS	residual sum of squares
 RSTP	Rapid Spanning Tree Protocol
 RT	real time
 RTC	real time clock
 RTC	real time computing
 RTF	rich text format
 RTL	register transfer language
 RTL	resistor-transistor logic
 RTL	right to left
 RTOS	real time operating system
 RTS	request to send
 RTT	round trip time
 RUP	rational unified process
 RW	Rabin-Williams
 RWM	read-write memory
 RX	{receive,receiver}
 S/PDIF	Sony/Philips Digital Interface Format
 SA	security advisory
 SA	security association
 SA	source address
 SA	structured analysis
 SAAS	software as a service
 SACD	super audio compact disc
 SAD	security association database
 SAL	{service,system} abstraction layer
 SAM	serial access memory
 SAM	sum addressed memory
 SAML	security assertion markup language
 SAN	storage area network
 SAP	service access point
 SAPIC	streamlined advanced programmable interrupt controller
 SASD	structured analysis, structured design
 SASI	Shugart Associates System Interface
 SASL	simple authentication [and] security layer
 SATA	serial advanced technology attachment
 SAX	simple API for XML
 SB	sound blaster
 SBU	standard build unit
 SC	store conditional
 SCA	source code analyzer
 SCADA	supervisory control and data acquisition
 SCC	single chip cloud
 SCC	source code control
 SCCS	Source Code Control System
 SCI	scalable coherent interface
 SCI	system control interrupt
 SCM	software configuration management
 SCM	source code management
 SCM	storage-class memory
 SCO	synchronous connection orientated
 SCP	secure copy
 SCSI	Small Computer System Interface
 SCTP	Stream Control Transmission Protocol
 SDEI	software delegated exception interface
 SDI	symbol deinterleave
 SDK	software development kit
 SDL	Simple Declarative Language
 SDL	Simple Direct-media Layer
 SDLC	{software,system,systems} development life cycle
 SDN	software defined networking
 SDP	Session Description Protocol
 SDRAM	synchronous dynamic random access memory
 SDS	software defined storage
 SDT	syntax-directed translation
 SEA	synchronous external abort
 SEGV	segmentation violation
 SEO	search engine optimization
 SES	SCSI enclosure services
 SFC	sequential function chart
 SFI	simple firmware interface
 SFI	software fault isolation
 SFTP	SSH File Transfer Protocol
 SFTP	Serial File Transfer Protocol
 SFTP	Simple File Transfer Protocol
 SGMII	serial gigabit media independent interface
 SGRAM	synchronous graphics random access memory
 SHA	secure hash algorithm
 SIDH	supersingular isogeny Diffie-Hellman
 SIEM	security information and event management
 SIF	source input format
 SIFS	short inter-frame space
 SIM	subscriber identity module
 SIMD	single instruction, multiple data
 SIMM	single inline memory module
 SIP	Session Initiation Protocol
 SIR	signal-to-interference ratio
 SIR	slow infrared
 SISD	single instruction, single data
 SLAAC	stateless address auto-configuration
 SLC	single-level cell
 SLDRAM	synchronous-link dynamic random access memory
 SLED	single large expensive disk
 SLI	scalable link interface
 SLI	scan-line interleave
 SLOC	source lines of code
 SLRU	segmented LRU
 SMA	smart memory access
 SMAF	system management action field
 SMAP	Simple Mail Access Protocol
 SMAP	supervisor mode access prevention
 SMART	self-monitoring analysis and reporting technology
 SMB	Server Message Block
 SMB	system management bus
 SMBIOS	System Management BIOS
 SMC	system management controller
 SMD	storage module device
 SMEP	supervisor mode execution protection
 SMF	single mode fiber
 SMI	structure of management information
 SMI	system management interrupt
 SMM	system management mode
 SMP	symmetric multiprocessing
 SMT	simultaneous multithreading
 SMTP	Simple Mail Transfer Protocol
 SMU	system management unit
 SNAP	Sub-Network Access Protocol
 SNIA	Storage Networking Industry Association
 SNMP	Simple Network Management Protocol
 SNR	signal-to-noise ratio
 SOA	service oriented architecture
 SOAP	Simple Object Access Protocol
 SOC	system on chip
 SOF	start of frame
 SOH	start of header
 SOHO	small office/home office
 SOL	serial over LAN
 SP	service pack
 SP	stack pointer
 SPA	storage pool allocator
 SPARC	scalable processor architecture
 SPARQL	SPARQL Protocol and RDF Query Language
 SPD	security policy database
 SPD	serial presence detect
 SPDIF	Sony/Philips digital interface format
 SPI	serial peripheral interface
 SPI	stateful packet inspection
 SPL	system interrupt priority level
 SPL	spinlock
 SPMD	single process, multiple data
 SPR	special purpose register
 SPT	sectors per track
 SQA	software quality assurance
 SQCIF	sub quarter common intermediate format
 SQL	Structured Query Language
 SRAM	static random access memory
 SRC	sample rate conversion
 SRP	SCSI RDMA protocol
 SS	self-snoop
 SS	stack segment
 SSA	static single assignment
 SSAP	source service access point
 SSB	single-sideband modulation
 SSD	solid state drive
 SSE	streaming SIMD extensions
 SSFDC	solid state floppy disc card
 SSH	secure shell
 SSI	server side includes
 SSID	service set identifier
 SSL	secure sockets layer
 SSP	stack smashing protection
 STC	software thermal control
 STD	state transition diagram
 STOMP	Streaming Text Oriented Messaging Protocol
 STP	Spanning Tree Protocol
 STP	shielded twisted pair
 SUN	Stanford University Network
 SUS	Single Unix Specification
 SUT	system under test
 SVG	scalable vector graphics
 SVGA	Super Video Graphics Array
 SVI	{switch,switched} virtual interface
 SVM	secure virtual machine
 SVM	support vector machine
 SVR	System V Release
 SVS	Separate Virtual Space
 SWF	Shockwave Flash
 SWIG	simplified wrapper [and] interface generator
 SYR	symbol timing recovery
 TA	test assertion
 TA	transmitter address
 TAI	international atomic time
 TAO	track at once
 TAOCP	The Art of Computer Programming
 TAP	Test Anything Protocol
 TAS	test and set
 TB	terabyte
 TCB	trace capture buffer
 TCB	trusted computing base
 TCC	thermal control circuit
 TCL	tool command language
 TCP	Transmission Control Protocol
 TCQ	tagged command queueing
 TDC	time [to] digital converter
 TDD	test-driven development
 TDD	time division duplex
 TDM	time division multiplexing
 TDMA	time division multiple access
 TDOA	time difference of arrival
 TDP	thermal design {point,power}
 TECO	Text Editor and Corrector
 TFT	thin film transistor
 TFTP	Trivial File Transfer Protocol
 TIAS	try it and see
 TIFF	tagged image file format
 TITS	try it to see
 TK	temporal key
 TKIP	Temporal Key Integrity Protocol
 TLA	top level aggregator
 TLB	translation lookaside buffer
 TLD	top level domain
 TLS	thread local storage
 TLS	transport layer security
 TM	Turing machine
 TM	thermal monitor
 TMDS	transition minimized differential signaling
 TMO	timeout
 TOD	time of day
 TOS	terms of service
 TOS	trusted operating system
 TOS	type of service
 TP	transaction processing
 TPI	tracks per inch
 TPM	transactions per minute
 TPM	trusted platform module
 TPR	task priority register
 TPS	transactions per second
 TPS	transmission parameters signaling
 TR	task register
 TR	token ring
 TRL	timing recovery loop
 TRNG	true random number generator
 TS	terminal services
 TS	time series
 TS	time stamp
 TS	transport stream
 TSAN	Thread Sanitizer
 TSC	time stamp counter
 TSD	time stamp disable
 TSDB	time series database
 TSL	test, set, lock
 TSO	time sharing option
 TSO	Total Store Ordering
 TSP	Time-Stamp Protocol
 TSP	Tunnel Setup Protocol
 TSP	time synchronization protocol
 TSP	traveling salesman problem
 TSS	task state segment
 TTL	time to live
 TTL	transistor-transistor logic
 TTM	translation table maps
 TTY	teletype
 TUI	{terminal,text-based,textual} user interface
 TX	{transmit out,transmitter}
 TXG	transaction group
 TZ	time zone
 UAC	user {access,account} control
 UAF	use-after-free
 UART	universal asynchronous receiver/transmitter
 UAT	user acceptance testing
 UB	undefined behavior
 UBSAN	Undefined Behavior Sanitizer
 UC	uncacheable
 UCS	uniform-cost search
 UDMA	ultra DMA
 UDO	ultra density optical
 UDP	User Datagram Protocol
 UEFI	unified extensible firmware interface
 UFS	Unix File System
 UGA	universal graphics adapter
 UI	unit interval
 UI	user interface
 UICC	universal integrated circuit card
 UID	unique identifier
 UID	user identifier
 UL	upload
 UMA	uniform memory access
 UMA	upper memory area
 UMB	upper memory block
 UML	unified modeling language
 UMPC	ultra-mobile PC
 UPNP	universal plug and play
 UPS	uninterruptible power supply
 URI	uniform resource identifier
 URL	uniform resource locator
 URN	uniform resource name
 USART	universal synchronous/asynchronous receiver/transmitter
 USB	universal serial bus
 USWC	uncacheable speculative write combining
 UT	unit test
 UTC	coordinated universal time
 UTP	unshielded twisted pair
 UUCP	Unix-to-Unix Copy Protocol
 UUID	universally unique identifier
 UUOC	useless use of cat
 UUT	unit under test
 UX	user experience
 VA	vertical alignment
 VA	virtual address
 VA	volt-ampere
 VAX	virtual address extension
 VB	Visual Basic
 VCA	variable-gain amplifier
 VCC	common collector voltage
 VCF	voltage-controlled filter
 VCM	virtual channel memory
 VCO	voltage-controlled oscillator
 VCS	version control system
 VESA	Video Electronics Standards Association
 VFO	variable-frequency oscillator
 VG	volume group
 VGA	Video Graphics Array
 VHDCI	very high density cable interconnect
 VID	{VLAN,voltage level} identifier
 VIM	Vi IMproved
 VIPT	virtually indexed, physically tagged
 VIVT	virtually indexed, virtually tagged
 VLAN	virtual local area network
 VLIW	very long instruction word
 VLSI	very large scale integration
 VLSM	variable length subnet mask
 VM	virtual {machine,memory}
 VME	virtual mode extension
 VMX	vector multimedia extensions
 VMX	virtual machine extensions
 VOD	video on demand
 VPN	virtual private network
 VR	virtual reality
 VRAM	video random access memory
 VRF	virtual routing and forwarding
 VRM	voltage regulator module
 VRRP	Virtual Router Redundancy Protocol
 VSTP	VLAN Spanning Tree Protocol
 VTP	VLAN Trunking Protocol
 W	watt
 W3C	World Wide Web Consortium
 WAMP	Web Application Messaging Protocol
 WAN	wide area network
 WAP	Wireless Application Protocol
 WAP	wireless access point
 WDM	Windows Driver Model
 WDDM	Windows Display Driver Model
 WDT	watchdog timer
 WEP	Wired Equivalent Privacy
 WFI	wait for interrupt
 WFQ	weighted fair queuing
 WH	write hit
 WIFI	wireless fidelity
 WLAN	wireless local area network
 WM	write miss
 WMI	Windows Management Instrumentation
 WOL	Wake-on-LAN
 WOM	Wake-on-Modem
 WOR	Wake-on-Ring
 WORM	write once read many
 WP	WordPerfect
 WP	word processor
 WP	write protect
 WPA	Wi-Fi Protected Access
 WPA2	Wi-Fi Protected Access II
 WPS	Wi-Fi Protected Setup
 WRAM	window random access memory
 WS	web services
 WTC	write through caching
 WWAN	wireless wide area network
 WWW	world wide web
 WYSIAYG	what you see is all you get
 WYSIWYG	what you see is what you get
 XBAR	crossbar
 XDMCP	X Display Manager control protocol
 XER	XML encoding rules
 XGA	Extended Graphics Array
 XHR	XMLHttpRequest
 XIP	execute in place
 XML	Extensible Markup Language
 XOR	exclusive or
 XP	extreme programming
 XSI	X/Open System Interface
 XSL	extensible stylesheet language
 XSS	cross site scripting
 XT	extended technology
 XUL	XML user interface language
 YACC	yet another compiler compiler
 YAML	YAML ain't markup language
 YANG	yet another next generation
 YAWPFAPR	you are welcome; please file a problem report
 YP	Yellow Pages
 YTD	year to date
 ZAP	ZFS attribute processor
 ZBR	zone bit recording
 ZFOD	zero-filled on demand
 ZFS	zettabyte file system
 ZIF	zero insertion force
 ZIFS	zero insertion force socket
 ZIL	ZFS intent log
 ZMA	zone multicast address
 ZPL	ZFS Posix layer
 ZVOL	ZFS Volume