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  Basics of computer A  computer  is a machine that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming. Modern computers have the ability to follow generalized sets of operations, called programs .  These programs enable computers to perform an extremely wide range of tasks. A "complete" computer including the hardware, the operating system (main software), and peripheral equipment required and used for "full" operation can be referred to as a  computer system . This term may as well be used for a group of computers that are connected and work together, in particular a computer network or computer cluster. Computers are used as control system for a wide variety of industrial and consumer devices. This includes simple special purpose devices like microwave oven and remote contols, factory devices such as industrial robots and compute...

1.1 Computer Overview  Today’s world is an information-rich world and it has become a necessity for everyone to know about computers. A computer is an electronic data processing device, which accepts and stores data input, processes the data input, and generates the output in a required format. A computer system has three main components:  hardware, software , and  people . The equipment associated with a computer system is called  hardware .  Software  is a set of instructions that tells the hardware what to do. People, however, are the most important component of a computer system - people use the power of the computer for some purpose. In fact, this course will show you that the computer can be a  tool  for just about anyone from a business person, to an artist, to a housekeeper, to a student - an incredibly powerful and flexible tool. The purpose of this tutorial is to introduce you to Computers and its fundamentals. Functionalitie...