differences between analog and digital computer

Differences between analog and digital computers

An analog computer is a form of computer that uses the continuously changeable aspects of physical phenomena such as electrical, mechanical, or hydraulic quantities to model the problem being solved. As an analog computer does not use discrete values, but rather continuous values, processes cannot be reliably repeated with exact equivalence.

what is computer. what are the elements and functions of computer

What is computer? What are the four elements of computer? What are the functions of a computer?

A computer is a multipurpose electronic device that can receive, store, process data and deliver information. A computer takes data such as numbers, text, images etc. as input and then process those data and converts those to useful information. Additionally, a computer can also store data and information both for future use. Also a computer can perform scheduled tasks. Computers are programmed devices. Computer programmers write programs or software for computer which actually takes input, process it and outputs information.