COMPUTER AN INTRODUCTION

# A COMPUTER can be called as an electronically operated machine that accepts user information, processes according to the set of given informations and finally displays the result data.

# A COMPUTER can be said as the combination of hardware and software which converts data into information.

HARDWARE - Physical elements of a computer.

SOFTWARE - Set of programs and instructions fed into the computer.

DATA - Raw ( unprocessed ) data fed into the computer.

INFORMATION - Processed information.

INSTRUCTIONS - Commands given to a computer.

PROGRAM - Set of instructions fed into a computer.


FUNCTIONS  -

• INPUT
• PROCESSING OF RAW DATA INTO INFORMATION.
• OUTPUT
• STORAGE

COMPUTER APPLICATIONS

• Education in the form of virtual classrooms.
• Government in the form of keeping and organizing big logs and records.
• banks to keep them online and speed of working.
• Industry as some of the robotic machines work with the help of computers.
• Multimedia as all the graphics and special effects are created by the computers.

ADVANTAGES

• Speed
• Accuracy
• Multitasking
• Simplicity and ease of use.
• Fast connectivity.
• Enjoyment and fun.

TYPES

On the basis of size,

• Microcomputer - Personal computers and notebooks.
• Mainframe computer
• Minicomputer
• Supercomputer

On the basis of working system,

• Analogue
• Digital
• Hybrid

On the basis of purpose,

• General
• Specific.