1946 – The Trackball invented, patented 1947.
1964 – John G. Kemeny and Thomas E. Kurtz designed the original BASIC language at Dartmouth College in New Hampshire.
1969 – Unix development started at Bell labs by Ken Thompson, Dennis Ritchie, Brian Kernighan, Douglas Mcllroy and Joe Ossanna.
1970 November – The mouse patented
1971 – Intel 4004 The first microprocessor 4-bit
1972 – C development started on the PDP-11 Unix system
1972 – Intel 8008 8-bit microprocessor
1973-74 – Gary Kildall developed CP/M (Control Program/Monitor)
1974 April – Intel 8080 microprocessor
1974 – Motorola MC6800 8-bit Microprocessor
1974 – National Semiconductor SC/MP
1975 -MOS Technology 6502 8 bit microprocessor
1975 September – BYTE magazine first published in the USA
1975 – MITS Altair 8800, Intel 8080 at 2MHz, 256bytes memory, input/output toggle switches and LED’s.
1976 January – First issue of Dr Dobb’s journal
1976 April – Apple 1 personal computer $666.66
1976 – RCA CDP1802
1976 – KIM-1 6502 based single board computer designed by Chuck Peddle.
1976 – Zilog Z80 microprocessor
1977 January – Commodore PET 2001 announced at the winter CES
1977 – Xerox 9700 the first laser printer released
1977 – BSD initial release of the “Berkeley Software Distribution”
1977 – Apple II, 8-bit home computer using a 6502 at 1MHz
1977 – Tandy TRS-80 Model 1, Zilog Z80 at 1.774MHz, 4KB RAM
1977 – Science of Cambridge MK14, Nat Semi SC/MP CPU
1977 December – Nascom 1,
1978 February – Personal Computer World, First British computer magazine to be launched.
1978 – Visicalc the first spreadsheet program
1978 – Intel 8086 16-bit microprocessor released
1978 – Motorola 6809 8-bit microprocessor
1978 – Exidy Sorcerer, Z80 CPU
1978 August – Practical Computing, second British computer magazine to be launched.
1978 November – Transam Triton, intel 8080, 3KB RAM, 1KB video RAM
1978 – AIM-65 by Rockwell, 6502 CPU with till role printer
1978 – Commodore Pet,
1979 – Zilog Z8000 16-bit microprocessor
1979 – Intel 8088 16-bit microprocessor with an external 8 bit bus released
1979 – Motorola 68000 16/32-bit microprocessor
1979 – Microtan 65
1979 – Nascom 1 discontinued
1979 December – Nascom 2 launched
1980 – Sinclair ZX-80, Z80 at 3.25 MHz
1980 – Atari 400/800
1980 – Acorn Computers Atom, 6502 at 1MHz, 2KB memory expandable to 12KB’s.
1980 – Sharp MZ80K, Zilog Z80 at 2MHz, 24KB memory, 10 inch screen and cassette drive.
1981 March – Sinclair ZX-81, Zilog Z80 at 3.25 MHz
1981 August – MSDOS initial release by Microsoft
1981 – IBM PC,
1982 – Motorola MC68010 16/32-bit microprocessor
1982 February – Intel 80286 16-bit microprocessor
1982 – Acorn Computers BBC Model A & B,
1982 – Jupiter Ace,
1983 – Nascom 2 discontinued
1983 – Apple Lisa
1983 – IBM XT,
1983 – Memotech MTX500
1983 – Tangerine Oric-1, 6502 at 1MHz, 16KB RAM
1983 – Grundy NewBrain, Zilog Z80 at 4MHz, 16KB RAM
1983 September – GNU announced by Richard Stallman, a wholly free operating system.
1984 – Motorola 68020 32-bit microprocessor
1984 – Apple Macintosh , Motorola 68000 CPU at 8MHz, 9 inch 512×342 pixel monochrome display, 3.5 inch floppy drive and 128KB of memory.
1984 – Tatung Einstein, Z80 at 4MHz, 64Kbytes RAM & 16Kbytes video memory.
1984 – Sinclair QL, Motorola 68008 at 7.5MHz, 128KB RAM expandable to 640KB and 32KB main memory dedicated to driving a display at 512×256 in four colours or 256×256 in eight with UHF or RGB video out.
1985 February – GEM Desktop 1.0 from Digital Research Inc. released
1985 September – Amstrad PCW, Z80 CPU, 256Kbyte of RAM
1985 November – Windows 1.0 initial release by Microsoft
1985 – Intel 80386 32-bit microprocessor
1985 – Atari 520ST, Motorola 68000 at 8MHz, 512KB of RAM, 3.5 inch floppy drive, TOS & GEM desktop.
1986 – Amstrad PC1512,
1986 – Apple Mac Plus,
1987 – Practical Computing final issue
1987 May – GCC the GNU Compiler Collection initial release
1987 – Archimedes
1987 – Motorola 68030 32-bit microprocessor
1987 – Apple Mac SE,
1987 December – Windows 2.0
1988 May – Windows 2.1
1988 – Computer Shopper a UK magazine first published
1988 – Amstrad PPC640D Laptop, Intel 8086 at 8MHz, 512KB RAM
1989 – Intel 80486 32-bit microprocessor
1990 May – Windows 3.0
1990 – Motorola 68040 32-bit microprocessor
1991 October – The Linux Kernel first released by Linus Torvalds
1992 May – Windows 3.1
1993 – Intel Pentium P5 64-bit microprocessor
1993 – NetBSD initial release
1993 – Mosaic browser
1993 November – FreeBSD 1.0 initial release
1994 – Motorola 68060 32-bit Microprocessor
1995 August – Windows 95
1995 -Intel Pentium Pro P6 64-bit microprocessor
1996 October – OpenBSD initial release
1997
1998 25th June – Microsoft Windows 98 launch
1998 – Amstrad PCW discontinued
1998 August – Apple iMac G3
1999
2000 September – Windows ME
2001 October – Windows XP
2002 January – Apple iMac G4
2003 June – Power Mac G5
2004 August – Apple iMac G5
2005
2006 January – Apple iMac, Intel, plastic case
2006 – MacBook Pro
2006 August – Mac Pro, Intel processor
2006 November – Windows Vista
2007 August – Apple iMac Intel CPUS, aluminium case
2008 – MacBook Air
2009 June – Personal Computer World final issue
2009 July – Windows 7
2009 October – Apple iMac, Intel, aluminium unibody
2010
2011
2012 October – Windows 8
2012 November – Apple iMac, Intel, slim aluminium unibody
2013 – New Mac Pro
2014 October- Apple 27″ iMac 5K released
2015