COMPUTER - INTRODUCTION

•  A Computer is a general purpose device that can be programmed to carry out a set of arithmetic or logical operations automatically. Since a sequence of operations can be readily changed, the computer can solve more than one kind of problem.

•   A general purpose computer has four main components: the arithmetic logic unit (ALU), the control unit, the memory, and the input and output devices (collectively termed I/O).

•   The data that is fed into a computer processor received into the computer by a keyboard or other sources is called Input.

•   A computer is an electronic device that accepts data from the user (input), processes the data by performing calculations and operations on it and generates the desired Output.

•  The device which is used with a computer to display or store data is called Peripherals. 

• The mechanical, magnetic, electronic and electrical components that comprises a computer system such as the Central Processing Unit (CPU), monitor, keyboard, etc. is known as Hardware. 

•  A set of instructions that tells the computer about the tasks to be performed and how these tasks are to performed, is known as Software.

•  An unprocessed collection or representation of raw facts represented in a manner suitable for communication, interpretation or processing by humans or by automatic means, is known as Data.

•   The result of processing, manipulating and organising data in a way that adds to the knowledge of the person receiving it, is known as Information. 

•  The smallest unit of information, a computer can understand and process, is known as Bit. 

•  The primary goal of computer is to process information that it receives and output the results. The process of control and alter information is known as. Processing. 

•  Which number system computer used to store data and perform calculation? Binary Number System. 

•  Computer Speed, Accuracy, Diligence, Storage Capability, Automation, Remembrance Power and