Computers Past & Present

First programmable computer

Aug 21, 1941

The Z3 by German inventor Konrad Zuse from 1941 was the first working programmable, fully automatic computing machine.

First commercial computer IBM

Apr 12, 1953

The first commercial computer that used a moving head hard disk drive for secondary storage. IBM

First dynamic RAM chip

Oct 26, 1970

the newly formed Intel company publicly released the 1103, the first DRAM (Dynamic Random Access Memory) chip

First personal Computer

Period: Aug 22, 1974 to Jun 20, 1977

Several different manufacturers marketed "personal computers" between 1974 and 1977 in response to that desire.

Apple Macintosh Computer

Jun 20, 1984

The more affordable home computer with a GUI.