Book N Tech

Friday, November 1, 2013

Computer History

The computer is in fact an astonishing  invention. When the computer was first made it was called the abacus which is used to perform basic tasks. Every computer supports some kind of input, processes, and outputs. When computers were starting to be made, there were different generations of the computer. In this article I'll take you through three, basic generations. 

First Generations computers- First electronic computers used vacuum tubes, were huge, and complex. The computer was programmed using plug boards and switches, supporting input from an IBM card reader, and output to an IBM card punch. The computer took 167 square meters, weighted 27 tons, and consumed 150 kilowatts of power.

Second Generation computers- They came a lot thanks to the invention of the transistor, which then started replacing vacuum tubes for the computers. Transistors consumed less power, produced less heat, and were much smaller compared to the first generation computers.  The second generation computers are obviously much bigger compared to today's computer's but were a vast improvement over the previous generation.

As you can tell there  are a lot of changes with the computers today then there were when computer has first came out. They have made the computers smaller so they could be more movable then the first and second generation computers. The computers today are a lot smaller  than some of the first computers ever made, but are so much more powerful it's mind boggling. So if you were to learn something new about computers, it's that technology has changed a lot  to get computers and laptops where they are today.