What are the characteristics of First Generation Computers?

First Generation (1951 - 1959):

Vacuum tubes were used to build computers of first generation. These computers were so large in size because of using thousands of diode, triode, transistors, capacitors etc. and also used to use a lot of electricity. These computers of first generation used to produce a lot of heat, so those were more expensive to support by setting up cooling systems. Maintenance of these huge sized computers were complex and expensive. Following are some of the characteristics of the computers of first generation.

What are the characteristics of First Generation Computers?


Characteristics of First Generation Computers:

  1. Use of vacuum tubes to make circuits
  2. Use of magnetic drums
  3. Use of machine language and symbols in instructions
  4. Very small amount of storage space
  5. Use of punch cards as I/O devices
  6. Huge in size and poor in mobility
  7. Very slow and less reliable output
  8. Use of high electricity
  9. Generates too much heats
  10. Complex and expensive to maintain
Example: UNIVAC I, IBM 650, MARK II, MARK III etc.

Author: Tanmay Chakrabarty

Tanmay Chakrabarty is a former CSE student, currently working as a Senior Software Engineer with 5+ years of experience in the field of Web Application development in PHP+MySQL platform with strong skills in Javascript, JQuery, JQuery UI and CSS. He tries to write notes every week but fails due to heavy loads of duty.

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