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The history of computer
The early computers
The history of computer dates back a lot longer than the 1900s,
in fact computers have been around for over 5000 years.
In ancient time a "computer", (or "computor") was a person who
performed numerical calculations under the direction of a
mathematician.
Some of the better known devices used are the Abacus or the Antikyt
hera mechanism.
Around 1725 Basile Bouchon used perforated paper in a loom to
establish the pattern to be reproduced on cloth. This ensured
that the pattern was always the same and hardly had any human
errors.
Later, in 1801, Joseph Jacquard (1752 - 1834), used the punch
card idea to automate more devices with great success.
The First computers?
Charles Babbage's. (1792-1871), was ahead of his time, and
using the punch card idea he developed the first computing
devices that would be used for scientific purposes. He invented
the Charles Babbage's Difference Engine, which he begun in 1823
but never completed. Later he started work on the Analytical
Engine, it was designed in 1842.
Babbage was also credited with inventing computing concepts such
as conditional branches, iterative loops and index variables.
Many people improved on the Babbage inventions, George Scheutz
along with his son, Edvard Scheutz, began work on a smaller
version and by 1853 they had constructed a machine that could
process 15-digit numbers and calculate fourth-order differences.
On of the first notable commercial use, (and success), of
computers was the US Census Bureau, which used punch-card
equipment designed by Herman Hollerith to tabulate data for the
1890 census.
To compensate for the cyclical nature of the Census Bureau's
demand for his machines, Hollerith founded the Tabulating
Machine Company (1896), which was one of three companies that
merged to form IBM in 1911.
Later, Claude Shannon (1916- 2001) first suggested the use of
digital electronics in computers and in 1937 and J.V.Atanasoff
built the first electronic computer that could solve 29
simultaneous equations with 29 unknowns. But this device was not
programmable
During those trouble times, computers evolved at a rapid rate.
But because of restrictions many projects remained secret until
much later and notable example is the British military
"Colossus" developed in 1943 by Alan Turing and his team.
In the late 1940 the US army commissioned John V. Mauchly to
develop a device to compute ballistics during World War II. As
it turned out the machine was only ready in 1945, but the
Electronic Numerical Integrator and Computer, or ENIAC,
proved to be a turning point in computer history.
ENIAC proved to be a very efficient machine but not a very easy
one to operate. Any changes would sometime require the device
itself to be re-programmed. The engineers were all too aware of
this obvious problem and they developed "stored program
architecture".
John von Neumann, (a consultant to the ENIAC), Mauchly and his
team developed EDVAC, this new project used stored program.
Eckert and Mauchly later developed what was arguably the first
commercially successful computer, the UNIVAC.
Software technology during this period was very primitive. The
first programs were written out in machine code. By the 1950s
programmers were using a symbolic notation, known as assembly
language, then hand-translating the symbolic notation into
machine code. Later programs known as assemblers performed the
translation task.
The Transistor era, the end of the inventor.
Late 1950 saw the end of valve driven computers. Transistor
based computers were used because they were smaller, cheaper,
faster and a lot more reliable.
Corporations, rather than inventors, were now producing the new
computers.
Some of the better known ones are:
--TRADIC at Bell Laboratories in 1954,
--TX-0 at MIT's Lincoln Laboratory
--IBM 704 and its successors, the 709 and 7094. The latter
introduced I/O processors for better throughput between I/O
devices and main memory
--First supper computers, The Livermore Atomic Research Computer
(LARC) and the IBM 7030 (aka Stretch)
--The Texas Instrument Advanced Scientific Computer (TI-ASC)
Now the basis of computers was in place, with transistors the
computers were faster and with Stored program architecture you
could use the computer for almost anything.
New high level programs soon arrived, FORTRAN (1956), ALGOL
(1958), and COBOL (1959), Cambridge and the University of London
cooperated in the development of CPL (Combined Programming
Language, 1963). Martin Richards of Cambridge developed a subset
of CPL called BCPL (Basic Computer Programming Language, 1967).
In 1969, the CDC 7600 was released, it could perform 10 million
floating point operations per second (10 Mflops).
The network years.
From 1985 onward the race was on to put as many transistors as
possible on one computer. Each one of them could do a simple
operation. But apart from been faster and been able to perform
more operations the computer has not evolved much.
The concept of parallel processing is more widely used from the
1990s.
In the area of computer networking, both wide area network (WAN)
and local area network (LAN) technology developed at a rapid
pace
Get a more detailed histo
ry of computer on our website.
About the author:
Ever wanted to learn more about your computer? http://www.myoddpc.com gives
you information from the history of computer to what computer
memory to get. Computer software as well as everything you need
to know about computer hardware. All in simple terms for the
non-technical amongst us.
Simon Goodman
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