first generation computers
It used 5200 vacuum tubes.
First generation (1940-1956) Vaccum Tubes Second Generation(1956-1963)Transistors Third Generation(1964-1971)Integrated circuits Fourth Generation(1971-present)Microprocessors We already know about some of the early computers - ENIAC , EDVAC , EDSAC , UNIVAC I and IBM . These machines and others of their time used thousands of vacuum tubes . A vacuum tube was a fragile glass device , which used filaments as a source of electronics and could control and amplify electronic signals . It was the only high-speed electronic switching device available in those days . These vacuum tube computers could perform computations in milliseconds and were referred to as first generation computers.
I did't find anywhere that it was when I researched it. Over 99% of computers built from 1940 to 1958 used vacuum tubes as their active elements for: logic, power supply, memory sense/drive, etc. circuits. Other computers at this time were electromechanical, magnetic, and a small number of experimental transistor computers were built. From 1959 to about 1965 most computers used transistors as their active elements for: logic, power supply, memory sense/drive, etc. circuits. A small number off computers at this time were magnetic or used primitive monolithic ICs. From 1964 on more and more computers used ICs, of progressively increasing density.
Vacuum tubes have been built in sizes as small as the eraser on the end of your pencil to as big as a bus. It all depends on the purpose and power requirements. The typical vacuum tube used in household radios and TVs was half an inch to one inch in diameter and two to five inches tall.
Without the transistor you would need vacuum tubes to accomplish the same thing. None of our inexpensive portable electronics would be possible using vacuum tubes.
FIRST GENERATION
First generation computers.
no, first generation computers used vacuum tubes.
first
vacuum tubes
A diagram that explains the generation of the computer can be found on the Scribd website. First generation computers used vacuum tubes.
They are first generation computers because they used vacuum tubes as active elements, as did almost all computers until 1958 when the first generation is usually considered to have ended. From 1958 on most computers used discrete transistors as active elements until 1964.Note: ABC & ENIAC are both very early first generation computers as they used ordinary Radio receiver vacuum tubes, not the more expensive Computervacuum tubes that were introduced about 1948 to 1949. The later Computer vacuum tubes were custom redesigned versions and were far more reliable than ordinary Radio vacuum tubes had been.
Vacuum tubes were first replaced by transistors, and later by integrated circuits.
The Second Generation Computer used transistors
first generation
the vacuum tube ( valve) used to store data ( like 50 kilobytes )
It used 5200 vacuum tubes.