HARDWARE,SOFTWARE AND FIRMWORK

HARDWARE:

The physical components of a computer are called hardware. A physical component may be electronic,electrical,magnetic,mechanical or optical.examples of hardware are microprocessors and other ICs,hard disks,floppy disks,optical disks,cathode ray tube (CRT),keyboard,printed,plotted,etc.

SOFTWARE:
A sequence of instruction given to a computer to perform a particular task is called a program.A set of programs written for a computer is called software.The software required to execute user's program is known as system software.
The  term software includes both system software and user's programs.The system software includes operating system,assembler,compiler,interpreter,debugging programs,text editors,etc.The operating system is a collection of programs while controls the overall operating of a computer.

FIRMWORK: 

The term monitor is used for a simple operating system which allows user to enter a program,make alterations in a program,to run programs,and to observe the status of the various sections of the computer .The program stored in ROMs,PROMs,EPROMs or E^2PROMs are called firmware. Nowdays a large  variety of prewritten programs are available to solve specified tasks.User need not prepare programs for such tasks.They should simply know how to use such prewritten programs. Prewritten programs for specific tasks are called application programs or application packages. Important application packages available are WordStar  and MS-Word for text manipulation,LOTUS 1-2-3 and Excel for preparation of spreadsheet;ACCESS,ORACLE,UNITY and FOXBASE for handling database,etc.MS-Office is an integrated package.

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