Computer defination, hardware and software about operating system
Definition of Computer
1. A Computer can be descrIbed as an electronic machine which receives data and program, stores them, processes the data according to the program and then presents the results obtaIned In a useful form. it works on stored program concept. thch means once the data. and program Is fed In to Its memory It reads the program and executes it automatIcally to produce the desIred results
Software and Hardware
2. A computer system consIsts of the followmg unIts :
(a)Input unIt. (b) Memory unIt (c) Central processmg unIt (Control unIt + ALU)
(d) Output unit
Software and Hardware
3.Software is a general term,which describes all sorts of programs associated with computers, according to which a computer works and processes the data. in contrast to it the Hardware is a term which refers to the physical equipment and devices that makeup the computer. The hardware is necessary but software is vital because without software hardware is just a collection of electronic components only. There are numerous software available. Computer software may be classmed into two broad categories as follows :
(a) System Software. System software is the collection of programs deSigned to operate. control and extend the processing capabilities of a computer system. These programs are of general nature. act as an 'interface' between user and the computer system and facilitate the user to develoo application software. System software are developed by software developing firms like Microsoft, ASTON-TATE etc. Operating system and programming language translators are the examples of the system software.
(b) Application Software Application software are those
programs which are necessary to carry out operations for specified
application. These programs are written by the users to meet their
own specific needs. For example program to solve a set of equations, process examination results etc There are some prewritten software, written for general use in a specified field and allow the user to mould it. to solve his specific problem. This software called Applications packages are developed by the software developing companies and sold in the market. dBase lll, WordStar. LOTUS 1-2-3. MS Word, MS Excel, MS Access etc. are the examples of application packages commonly used With
PCs.
4. Difference between Software and Hardware.
Software is collection of Programs,
Software is vital
Software is a continuos expense
Software cannot be sensed by sense organs.
Hardware
all physical components construct a computer is known
as Hardware
Hardware is necessary
Hardware is one time expense
Hardware can be sensed by sense organs.
see next post after continuation
1. A Computer can be descrIbed as an electronic machine which receives data and program, stores them, processes the data according to the program and then presents the results obtaIned In a useful form. it works on stored program concept. thch means once the data. and program Is fed In to Its memory It reads the program and executes it automatIcally to produce the desIred results
Software and Hardware
2. A computer system consIsts of the followmg unIts :
(a)Input unIt. (b) Memory unIt (c) Central processmg unIt (Control unIt + ALU)
(d) Output unit
3.Software is a general term,which describes all sorts of programs associated with computers, according to which a computer works and processes the data. in contrast to it the Hardware is a term which refers to the physical equipment and devices that makeup the computer. The hardware is necessary but software is vital because without software hardware is just a collection of electronic components only. There are numerous software available. Computer software may be classmed into two broad categories as follows :
(a) System Software. System software is the collection of programs deSigned to operate. control and extend the processing capabilities of a computer system. These programs are of general nature. act as an 'interface' between user and the computer system and facilitate the user to develoo application software. System software are developed by software developing firms like Microsoft, ASTON-TATE etc. Operating system and programming language translators are the examples of the system software.
(b) Application Software Application software are those
programs which are necessary to carry out operations for specified
application. These programs are written by the users to meet their
own specific needs. For example program to solve a set of equations, process examination results etc There are some prewritten software, written for general use in a specified field and allow the user to mould it. to solve his specific problem. This software called Applications packages are developed by the software developing companies and sold in the market. dBase lll, WordStar. LOTUS 1-2-3. MS Word, MS Excel, MS Access etc. are the examples of application packages commonly used With
PCs.
4. Difference between Software and Hardware.
Software is collection of Programs,
Software is vital
Software is a continuos expense
Software cannot be sensed by sense organs.
Hardware
all physical components construct a computer is known
as Hardware
Hardware is necessary
Hardware is one time expense
Hardware can be sensed by sense organs.
see next post after continuation
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dont use unformal language