Computer Global Technology

WHAT IS A COMPUTER? A computer is an electronic device that accepts, retrieves, stores and process data to become a useful information. HISTORY OF COMPUTER. The historical development of computer are divided into: First generation; Second Generation; Third generation; Fourth generation; and fifth generation of computer. First generation of computer:  Charles Babbage, an English mechanical engineer and polymath, originated the concept of a programmable computer . Considered the "father of the computer ", he conceptualized and invented the first mechanical computer in the early 19th century.  The first generation of computers took place from 1940 to 1956 and was extremely large in size. The inner workings of the computers at that time were unsophisticated. These early machines required magnetic drums for memory and vacuum tubes that worked as switches and amplifiers. Second generation of computer: A transistor computer , now often called a

  CONTENTS Meaning of computer Parts of computer Types of computer Uses of computer Meaning of Computer A computer is an electronic device that accepts, stores, retrieves and process data to become a useful information. Parts of computer Just as we have parts of the body as the head, the hand, legs, head, etc, so also the computer have different parts The parts of computer are Mornitor, the Central Processing Unit (CPU), keyboard, mouse, speakers, etc. 1. The Monitor: The monitor can also be called 'Visual Display Unit', It looks like a TV screen. The function is to display visual and graphical objects like pictures, videos, etc.  It is an output device and it produces soft copy output. 2.The Central Processing Unit, (CPU): The Central Processing Unit is the brain and heart of the computer.  The computer's central processing unit ( CPU ) is the portion of a computer that retrieves and executes instructions. The CPU is essenti