26 December 2019 Reading time: 6 minutes

2020 IT holidays calendar

Santa Claus gives candy to kids, and we give our clients a calendar of IT holidays. Our bright punched calendar will help you remember when it's Programmer's Day and System Administrator Appreciation Day and when it's time to clean up your desktop or make a backup. Be sure to print it out and hang it in your office so you don't miss anything.


January 1
In 1983, Arpanet changed its main protocol from NCP to TCP/IP, which led to emergence of the modern Internet.
January 3
In 1977, Apple produced its first computer.
January 10
Donald Knut, an American scientist, "father" of modern programming, was born in 1938.
January 15
Birth of the web browser. In 1992, Berners-Lee Tim, "the father of World Wide Web", released the web browser, a program that allows you to browse the Internet.
January 24
In 1984, sales of the first Macintosh computers started in the USA.


February 4
Facebook was launched in 2004.
February 6
In 1985, Microsoft announced creation of the Word text processor for IBM PCs; in 2001, Pope John Paul II nominated St. Isidore of Seville as the patron saint of the Internet.
February 11
Safer Internet Day.
February 14
In 1946, IBM presented ENIAC – one of the first computers in the world.
February 15
Computer Scientist Day; Niklaus Wirt, a Swiss scientist, programming theorist, lead developer of Pascal and other languages, was born in 1934.
February 23
In 1993, Yukihiro Matsumoto began creating the Ruby programming language.
February 28
In 1956, network cable for computers was patented in the USA.


March 4
In 1977, a supercomputer designed by Seymour Cray was installed in Los Alamos.
March 13
In 1989, CERN invented the World Wide Web (WWW), better known as the Internet.
March 31
World Backup Day or World Data Protection Day.


April 4
Webmaster's day.
April 7
In 1964, IBM announced the birth of its legendary System/360. In 1969, this was the symbolic date of birth of the Internet – the publication of RFC 1.
April 23
World Creativity and Innovation Day or International Technology Dummies Day.
April 27
In 1981, Xerox released its "STAR 8010", the first mass market computer with a mouse and a graphic interface.


May 1
Styles table reloading day. The first event took place in 2006, when thousands of webmasters brought their sites in line with the new CSS web standards.
May 7
World Password Day.
May 13
World Technology for the Future Day.
May 17
World Telecommunication and Information Society Day.
May 19
In 1997, Hewlett-Packard released its first portable computer running under Windows CE.
May 25
Geek Pride Day.


June 8
Tim Berners-Lee, one of the inventors of the Internet, was born in 1955.
June 14
Sales of the first computer, UNIVAC 1, started in Washington in 1951.
June 21
In 1948, the first computer program was launched on Manchester Small Experimental Machine ("Baby"), the first computer with von Neumann memory architecture.


July 15
Twitter was launched in 2006.
July 16
The decision to increase the number of Internet domains was made in 2000.
July 31
System Administrator Appreciation Day. In 1996, the Federal Court of New York repealed legislation restricting freedom of expression on the Internet.


August 6
In 1991, CERN created the world's first HTML-based web page on NeXT.
August 7
Jimmy Donal Wales, the founder of Wikipedia, was born in 1966.


September 2
One of the "birthdays of the Internet." In 1969, the University of California laboratory hosted the first successful data transfer between two computers placed side-by-side.
September 9
Tester's Day.
September 12
Computer Scientist and Programmer Day. Haskell Brooks Curry, an American mathematician and logician, was born in 1900. Two programming languages were named after him: Curry and Haskell.
September 15
Google's birthday.
September 20
In 1954, computer executed the first program in the language of FORTRAN.
September 22
September 23
Yandex' birthday. The first version of Android was presented in 2008.
September 24
World Day against Software Patents.
September 28
International Day for Universal Access to Information.


October 17
Spreadsheet Day.
October 18
In 2017, Alphabet announced the creation of an improved version of AI AlphaGo.
October 21
Clean Your Virtual Desktop Day.
October 22
International Caps Lock Day.
October 29
In 1969, the first data transfer between two computers in a network was performed as part of the ARPANET project – yet another likely date of birth of the Internet.


November 11
World Geographic Information Systems Day (GIS Day).
November 20
Name Your PC Day.
November 30
Computer Security Day.


December 3
Born in 1924, John Backus, an American mathematician, created the programming language FORTRAN; World Computer Graphics Day (Designer and Animator Day).
December 4
Creation of JavaScript programming language was announced in 1995.
December 9
In 1968, Douglas Carl Engelbart first demonstrated a computer mouse and hypertext.
December 11
In 1946, the first programmable computer was patented in Britain.
December 13
In 1994, the first organizational meeting of the World Wide Web (W3C) consortium was held at MIT. Tim Berners-Lee became its first Director.