The first
generation (1943-1958)
The first generation is described as the period in which it was
performed The first commercial computer is delivered (UNIVAC) to the United
States Census Bureau In 1951, one of the most important features of the first generation
of Computers are used for vacuum tubes As the internal components of the
computer, where the length The vacuum tubes are generally about 5-10
Centimeter, and required first generation devices of Computers Large numbers of
vacuum tubes , Making these computers huge in size and Vast The price is often
broken.
Second
Generation (1960-1964)
Commercial interest in computer technology has increased In the late
1950s and 1960s Twenty, resulting in the introduction of a second generation of
Computers, its devices have been adopted on Transistors instead of vacuum
tubes, where John Bardeen, William Shockley, and Walter Bratin invented the
Bell Labs in Tel The mid-1940s, and by 1948 dissolved Transistor instead of the
vacuum tube in types Various devices, such as radio, television, Computer, and
was one of the first computing devices The transistor-based computers are
(S-2000), From Philco Corporation's Transac, In 1958, and were often used all
Of disks, and magnetic tapes for storage Data, second generation devices have
been programmed In programming languages, such as COBOL, And the language of
Fortran (FORTRAN), which was used For a variety of business tasksAnd
scientific.
Third Generation (1965-1970)
Hundreds of ingredients could
be put on One silicone chip, 2 or 3 millimeters Square, so after the
development of the first integrated circuit (IC) in 1965, where replaced
devices Computer machines that are based on the transistor With full circle,
the size was one bigger The advantages of this generation, where computers
become More powerful, much smaller, cheaper, Thus computers became affordable
The larger the number of people, the more advantage there is For the small size
of the devices of this generation, they are signals Electric are becoming smaller
distances to move, Resulting in increased computer speed, became Software
devices of this generation more powerful and flexible, Many programs have
shared computer resources At the same time, which is known as multitasking,
Most programming languages are often referred to Used today as
third-generation languages, Although some have emerged during the generation
The second.
Fourth
generation (1980s)
The devices of this generation began to appear in 1975 Almost, the
devices available today, are used These integrated circuit devices are
extensive (LSIC), located on a single silicon chip Called microprocessors,
where it became possible Computer CPU Mode On one chip, due to the development
of processors These computers are called computers The microcomputer, then the
circuit was replaced Integrated and integrated circuits High-level later, it
became It is possible to put the computer on which it is running Very large
room in the past on the table, classifies PC within generation devices Fourth
of the computer.
Fifth
generation (late 1990s)
Computers are used in the fifth generation Fiber optic technology to
deal with
intelligence Industrial, expert systems, and robots Etc. These
devices have processing speed High, more reliable.
