.↑

.iCal, .iFBf, .ics, .ifb	…	Internet Calendaring and Scheduling (iCalendar)
		iCalendar is a standard method of transferring calendaring and scheduling, free or busy time information between computer systems.
		Category:	document format ⋅ file extension
		MIME-Type:	text/calendar
		Markdown:	*[.iCal]: Internet Calendaring and Scheduling (iCalendar) *[.iFBf]: Internet Calendaring and Scheduling (iCalendar) *[.ics]: Internet Calendaring and Scheduling (iCalendar) *[.ifb]: Internet Calendaring and Scheduling (iCalendar)
		Reference:	link2, link3
		Type:	file extension

A↑

ANSI	…	American National Standards Institute
		Category:	standard ⋅ non-profit organization
		Markdown:	*[ANSI]: American National Standards Institute
		Type:	acronym

API	…	Application Programming Interface
		Category:	programming ⋅ communication interface ⋅ specification
		Markdown:	*[API]: Application Programming Interface
		Type:	acronym

ASCII	…	American Standard Code for Information Interchange
		Category:	standard ⋅ character encoding
		Markdown:	*[ASCII]: American Standard Code for Information Interchange
		Type:	acronym

B↑

BCC	…	Blind Carbon Copy
		Category:	email ⋅ header field
		Markdown:	*[BCC]: Blind Carbon Copy
		Type:	acronym

BOM	…	Byte Order Mark
		Category:	unicode ⋅ code point
		Markdown:	*[BOM]: Byte Order Mark
		Type:	acronym

C↑

CC	…	Carbon Copy
		Category:	email ⋅ header field
		Markdown:	*[CC]: Carbon Copy
		Type:	acronym

CMS	…	Cryptographic Message Syntax
		Category:	signing ⋅ encryption ⋅ gpgme
		Markdown:	*[CMS]: Cryptographic Message Syntax
		Type:	acronym

COPR	…	Cool Other Package Repo
		Category:	fedora ⋅ software repository
		Markdown:	*[COPR]: Cool Other Package Repo
		Type:	acronym

CR	…	Carriage Return
		Category:	control character
		Markdown:	*[CR]: Carriage Return
		Type:	acronym

CSS	…	Cascading Style Sheets
		Category:	style sheet language
		Markdown:	*[CSS]: Cascading Style Sheets
		Type:	acronym

D↑

DBCS	…	Double-Byte Character Set
		Category:	character encoding ⋅ character set
		Markdown:	*[DBCS]: Double-Byte Character Set
		Type:	acronym

DNS	…	Domain Name System
		Category:	internet protocol
		Markdown:	*[DNS]: Domain Name System
		Type:	acronym

DSN	…	Delivery Status Notification
		Category:	email ⋅ bounce message ⋅ reponder
		Markdown:	*[DSN]: Delivery Status Notification
		Type:	acronym

E↑

EOF	…	End of File
		Category:	stream indicator
		Markdown:	*[EOF]: End of File
		Type:	acronym

EOL	…	End of Line
		Category:	stream indicator
		Markdown:	*[EOL]: End of Line
		Type:	acronym

EOT	…	End of Transmission
		Category:	control character
		Markdown:	*[EOT]: End of Transmission
		Type:	acronym

F↑

FOSS	…	Free and Open Source Software
		Category:	license ⋅ free software ⋅ open source
		Markdown:	*[FOSS]: Free and Open Source Software
		Type:	acronym

G↑

GCC	…	GNU Compiler Collection
		Category:	programming ⋅ compiler
		Markdown:	*[GCC]: GNU Compiler Collection
		Type:	acronym

GDBM	…	GNU Data Base Manager
		Category:	library ⋅ database
		Markdown:	*[GDBM]: GNU Data Base Manager
		Type:	acronym

GFM	…	GitHub Flavoured Markdown
		Category:	markup language ⋅ markdown
		Markdown:	*[GFM]: GitHub Flavoured Markdown
		Type:	acronym

GNU	…	GNU’s Not Unix
		Category:	operating system ⋅ free software ⋅ project
		Markdown:	*[GNU]: GNU’s Not Unix
		Type:	recursive acronym

GPGME	…	GnuPG Made Easy
		Category:	library ⋅ cryptographic api
		Markdown:	*[GPGME]: GnuPG Made Easy
		Type:	acronym

GSSAPI	…	Generic Security Services Application Program Interface
		Category:	standard ⋅ api
		Markdown:	*[GSSAPI]: Generic Security Services Application Program Interface
		Type:	acronym

H↑

HTML	…	Hypertext Markup Language
		Category:	markup language
		Markdown:	*[HTML]: Hypertext Markup Language
		Type:	acronym

I↑

IDN	…	Internationalized Domain Names
		Category:	internet ⋅ domain name
		Markdown:	*[IDN]: Internationalized Domain Names
		Type:	acronym

IMAP, IMAP4	…	Internet Message Access Protocol
		Category:	email ⋅ internet protocol
		Markdown:	*[IMAP]: Internet Message Access Protocol *[IMAP4]: Internet Message Access Protocol
		Type:	acronym

IRC	…	Internet Relay Chat
		Category:	internet protocol ⋅ communication
		Markdown:	*[IRC]: Internet Relay Chat
		Reference:	link2
		Type:	acronym

L↑

LDAP	…	Lightweight Directory Access Protocol
		Category:	internet protocol ⋅ authentication ⋅ validation
		Markdown:	*[LDAP]: Lightweight Directory Access Protocol
		Type:	acronym

LF	…	Line Feed
		Category:	control character
		Markdown:	*[LF]: Line Feed
		Type:	acronym

LMDB	…	Lightning Memory-Mapped Database Manager
		Category:	library ⋅ database
		Markdown:	*[LMDB]: Lightning Memory-Mapped Database Manager
		Type:	acronym

Lua	…	Scripting Language (from Portuguese, meaning moon)
		Category:	script language
		Markdown:	*[Lua]: Scripting Language (from Portuguese, meaning moon)
		Type:	noun

M↑

MBCS	…	Multi-Byte Character Set
		Category:	character encoding ⋅ character set
		Markdown:	*[MBCS]: Multi-Byte Character Set
		Type:	acronym

MIME	…	Multipurpose Internet Mail Extensions
		Category:	content type ⋅ media type ⋅ document format
		Markdown:	*[MIME]: Multipurpose Internet Mail Extensions
		Type:	acronym

MUA	…	Mail User Agent
		Category:	email ⋅ client ⋅ mail reader
		Markdown:	*[MUA]: Mail User Agent
		Type:	acronym

N↑

NCR	…	Numeric Character Reference
		Category:	code point ⋅ character encoding ⋅ character set
		Markdown:	*[NCR]: Numeric Character Reference
		Type:	acronym

Notmuch	…	Not much mail
		Category:	email ⋅ mail indexing ⋅ mail tagging
		Markdown:	*[Notmuch]: Not much mail
		Reference:	link2
		Type:	abbreviation

nroff	…	new runoff
		Category:	software ⋅ document processor ⋅ text formatter
		Markdown:	*[nroff]: new runoff
		Type:	abbreviation

O↑

OBDB	…	Oracle Berkeley Database
		Category:	library ⋅ database
		Markdown:	*[OBDB]: Oracle Berkeley Database
		Type:	acronym

P↑

PGP	…	Pretty Good Privacy
		Category:	certification ⋅ signing ⋅ encryption ⋅ authentication
		Markdown:	*[PGP]: Pretty Good Privacy
		Type:	acronym

POP, POP3	…	Post Office Protocol
		Category:	email ⋅ internet protocol
		Markdown:	*[POP]: Post Office Protocol *[POP3]: Post Office Protocol
		Type:	acronym

PPA	…	Personal Package Archive
		Category:	software repository ⋅ packaging
		Markdown:	*[PPA]: Personal Package Archive
		Type:	acronym

Q↑

QDBM	…	Quick Data Base Manager
		Category:	library ⋅ database
		Markdown:	*[QDBM]: Quick Data Base Manager
		Type:	acronym

R↑

RFC	…	Request for Comments
		Category:	standard ⋅ documentation ⋅ white paper
		Markdown:	*[RFC]: Request for Comments
		Reference:	link2
		Type:	acronym

RTF	…	Rich Text Format
		Category:	document format ⋅ file extension
		Markdown:	*[RTF]: Rich Text Format
		Type:	acronym

S↑

SASL	…	Simple Authentication and Security Layer
		Category:	library ⋅ framework ⋅ authentication ⋅ negotiation
		Markdown:	*[SASL]: Simple Authentication and Security Layer
		Type:	acronym

SBCS	…	Single-Byte Character Set
		Category:	character encoding ⋅ character set
		Markdown:	*[SBCS]: Single-Byte Character Set
		Type:	acronym

SMTP	…	Simple Mail Transfer Protocol
		Category:	email ⋅ internet protocol
		Markdown:	*[SMTP]: Simple Mail Transfer Protocol
		Type:	acronym

SOCKS	…	Socket Secure (Internet Protocol)
		Category:	internet protocol ⋅ proxy
		Markdown:	*[SOCKS]: Socket Secure (Internet Protocol)
		Type:	acronym

SSL	…	Secure Sockets Layer
		Category:	internet protocol
		Markdown:	*[SSL]: Secure Sockets Layer
		Type:	acronym

settext	…	structure-enhanced text
		Category:	markdown ⋅ header style
		Markdown:	*[settext]: structure-enhanced text
		Type:	abbreviation

T↑

TBD	…	To Be Defined
		Category:	management ⋅ draft ⋅ work in progress
		Markdown:	*[TBD]: To Be Defined
		Type:	acronym

	…	To Be Determined
		Category:	management ⋅ draft ⋅ work in progress
		Markdown:	*[TBD]: To Be Determined
		Type:	acronym

TLS	…	Transport Layer Security
		Category:	internet protocol
		Markdown:	*[TLS]: Transport Layer Security
		Type:	acronym

Tar	…	Tape archiver
		Category:	software ⋅ file archiver
		Markdown:	*[Tar]: Tape archiver
		Type:	acronym

tarball	…	Tar generated archive file
		Category:	file format ⋅ tar
		Markdown:	*[tarball]: Tar generated archive file
		Type:	slang

U↑

UCS	…	Universal Coded Character Set (Unicode, ISO/IEC)
		Category:	character encoding ⋅ character set ⋅ unicode
		Markdown:	*[UCS]: Universal Coded Character Set (Unicode, ISO/IEC)
		Type:	acronym

URL, URLs	…	Uniform Resource Locator
		Category:	hyperlink ⋅ reference ⋅ identifier
		Markdown:	*[URL]: Uniform Resource Locator *[URLs]: Uniform Resource Locator
		Type:	acronym

UTF	…	UCS Transformation Format
		Category:	character encoding ⋅ character set ⋅ unicode
		Markdown:	*[UTF]: UCS Transformation Format
		Type:	acronym

UTF-16	…	16-Bit UCS Transformation Format
		Category:	character encoding ⋅ character set ⋅ unicode
		Markdown:	*[UTF-16]: 16-Bit UCS Transformation Format
		Type:	acronym

UTF-32	…	32-Bit UCS Transformation Format
		Category:	character encoding ⋅ character set ⋅ unicode
		Markdown:	*[UTF-32]: 32-Bit UCS Transformation Format
		Type:	acronym

UTF-8	…	8-Bit UCS Transformation Format
		Category:	character encoding ⋅ character set ⋅ unicode
		Markdown:	*[UTF-8]: 8-Bit UCS Transformation Format
		Type:	acronym

Y↑

YAML	…	YAML Ain’t Markup Language
		Category:	markup language
		Markdown:	*[YAML]: YAML Ain’t Markup Language
		Reference:	link2, link3
		Type:	recursive acronym

Z↑

ZIP	…	archive file format (meaning “move at high speed”)
		Category:	file format ⋅ data compression
		Markdown:	*[ZIP]: archive file format (meaning “move at high speed”)
		Type:	slang