
The
Development
of
Computers
3
The fourth version of ICT's Hollerith Electronic Computer (HEC4)
was marketed as the 1201 with 1 K of store, and 1202 with 4 K of
store, a total of one hundred and twenty-four of these machines being
sold. English Electric produced DEUCE (Digital Electronic Universal
Calculating Engine) with both magnetic drum and mercury delay line
storage. IBM introduced their 700 series and Honeywell their 400 and
800 computers.
SECOND GENERATION COMPUTERS
1950 proved to be a landmark in computer technology, with the
discovery of the planar silicon transistor and the incorporation of this
device in the UNIVAC II machine. Thi ...