Thursday, October 31, 2013
The 'Computer' is an automatic device that performs mathematical calculations that logical operations. Computers are being put to use in widely divergent fields such as book-keeping, spaceflight controls, passanger reservation service, language translation, etc. There are two broad categories: analong and digital. The former represents numbers by some physical quantity such as length, angular relation or electric current whereas the latter represent numbers by seperate devices for each digit.