Adobe introduced PostScript Level 2 the first major upgrade.

Borland announces Turbo C++.

Microsoft announces Windows 3.0

Windows version 3.0 which takes full advantage of 80 386 processor. Displays file and disks as icons and is network aware.

FORTRAN 90 appears and includes new elements such as case statements and desired types.

Operating System market (1990):
DOS = 52.6 %
System 370 = 27.7 %
UNIX = 16.1 %
others = 3.6 %

Global Software market worldwide (1990):
1. USA 57%
2. Japan 13%
3. Germany 7%
4. France 7%
5. Britain 6%

IBM introduced its PS/1 computers based on Intel 80486 processor. The machines contain no expansion slots but given the function built-in on the motherboard.

Apple Computers have 15% of the market and is leader of the IBM non-compatible computers.

Arpanet ceases to exist.

IBM re-entree into the workstation market with RS/6000 family.

Robert Noyce, cofounder of Intel, dies at 62.

MPRII standard limits potentially electromagnetic radiation to less than 20".

22% of the US households have a computer.