This is a timeline about computers' history starting at Mark 1, first electromechanical computer, going over electronic vacuum tubes, ENIAC, EDSAC, EDVAC, LEO, UNIVAC, Apple II or Apple ][, IBM PC, first Macintosh, and the different ages of computers' history.

1. 1942
Mark 1, First
electromechanical
computer, using
mechanical
devices, weighed 5
tons, it used about
750,000 parts
Beyond
1946
ENIAC, First
Electronic
High-Speed,
GeneralPurpose
Computer
Using Vacuum
Tubes
1959 – 1963
1951
LEO &
UNIVAC, First
commercial
automatic
computers
Were used transistors
(with semiconductors) as
main logic element and
magnetic tape and disks
(external), and magnetic
cores (internal) to store
data.
1977
1981
Apple ][, first highly
successful massproduced personal
microcomputer,
designed by Steve
Wozniak.
IBM PC (personal
computer), and
MS-DOS (Microsoft
Disk Operating
System), was
developped.
Now, they’re being developed
artificial intelligence,
applications, parallel
processing, superconductors,
quantum computation,
nanotechnology, etc., to
improve computers, and they
are more and more
technological.
Onwards
1940
1943
1949
1951 – 1958
1964 – 1979
Electronic
vacuum tubes,
Controlling
electric current
through a vacuum
in a sealed
container
EDSAC & EDVAC,
First storedprogram computers
Were used vacuum tubes
as main logic element,
punch cards (external)
and rotating magnetic
drums (internal) to stare
data, and compilers to
transform codes.
Were used integrated
circuits as logic element, and
magnetic
core internal memories
began to give way to metal
oxide semiconductor (MOS)
memory. They used siliconbacked chips.
1984
1979 – Present
Integrated circuits became
First Apple Mac
large-scale and very large-scale
(Macintosh),
(LSIs and VLSICs); memory,
targeted mainly at the
logic, and control circuits (an
home, education, and
entire CPU) were in
creative professional
microprocessors; they appeared markets, by Apple Inc.
home-use PC’s; language
software are very easy.