Computers have come a long way since the very first models. The earliest computers were the size of entire buildings. Innovations have continued to make computers faster and smaller. Below is a timeline that shows the rich history of the computer and the innovations around it.

June 16, 1911 IBM was founded as the Computing Tabulating Recording Company, changing their name to International Business Machines in 1924.
1938 Konrad Zuse invented the first first binary and freely programmable computer called the Z1 computer.
1942 John Atanasoff and Cliffor Berry invented the ABC Computer.
1944 Howard Aiken and Grace Hopper invented the Harvard Mark 1 computer.
1945 The world’s first universal algorithmic programming language named Plankalkül is designed by Konrad Zuse between 1943-1945.
June 30, 1945 The Von Neumann architecture (or Von Neumann model) is published.
1946 John Presper Eckert and John W. Mauchly invented the ENIAC 1 computer.
October 1946 Konrad Zuse started the first computer startup company Ingenieurbüro Hopferau.
1975 MITS releases the Altair 8800 invented by Ed Roberts. He coins the term “Personal Computer”.
April 4, 1975 Bill Gates and Paul Allen start Microsoft.
April 1, 1976 Apple was started by Steve Jobs and Steve Wozniak.
July 1, 1976 Steve Wozniak designed the Apple I and released it along with Steve Jobs.
December 2, 1982 Adobe was started by Warnock and Charles Geschke.
January 24, 1984 Apple releases the Macintosh computer.
March 7, 1984 RIM was started by Lindsay Burger.
August 24, 1995 The Windows 95 operating system is released.
May 15, 1997 HTC was started by Cher Wang, HT Cho, and Peter Chou.
September 4, 1998 Sergey Brin and Larry Page start Google.
June 30, 1998 The Windows 98 operating system is released.
March 31, 2000 The Windows 2000 operating system is released.
December 31, 2000 The Windows Millennium operating system is released.
March 24, 2001 The Mac OS X v10.0 operating system called Cheetah is released.
September 25, 2001 The Mac OS X v10.1 operating system called Puma is released.
October 23, 2001 Apple releases the iPod.
December 31, 2001 The Windows XP operating system is released.
August 24, 2002 The Mac OS X v10.2 operating system called Jaguar is released.
October 24, 2003 The Mac OS X v10.3 operating system called Panther is released.
April 29, 2005 The Mac OS X v10.4 operating system called Tiger is released.
June 29, 2007 Apple releases the iPhone.
October 26, 2007 The Mac OS X v10.5 operating system called Leopard is released.
November 29, 2007 The Windows Vista operating system is released.
August 28, 2009 The Mac OS X v10.6 operating system called Snow Leopard is released.
October 22, 2009 The Windows 7 operating system is released.
April 3, 2010 Apple releases the iPad.
July 20, 2011 The Mac OS X v10.7 operating system called Lion is released.
October 14, 2011 Apple releases the iPhone 4s .
2012 LTE mobile broadband networks become widely available.