What Is Computer?
The Computer is an electronic device which is capable of receiving information (data) in a particular form and of performing a sequence of operations in accordance with a predetermined but variable set of procedural instructions (program) to produce a result in the form of information or signals.
The term computer hardware refers to the physical components of a computer, namely Keyboard, Monitor, Mouse, and Printer, including the digital circuitry.Computer hardware is an integral part embedded in all modern day automobiles, microwave ovens, electrocardiograph machines, compact disc players, and other devices. The hardware of a computer is not changed frequently, in contrast with
software and data. The present computers are much advanced in terms of processing speed and have an efficient memory structure.
A personal computer, very commonly known as the PC or the home computer,refers to a microcomputer whose price, size, and capabilities make it suitable for personal usage. They are normally single-microprocessors, single user systems designed for general-purpose applications. They have sufficiently large amount of internal memory to store programs and documents. A computer, indeed, is a
machine that can perform a number of tasks for us. It can accept and store data, process it and produces the output. For performing these functions, computer systems consist of Input devices, a Central Processing Unit (CPU) and Output
Click below to read input devices
Click below to read output devices