KPK 11th Class Computer Chapter 1 Overview of computer System Short Questions with answers are combined for all 11th class(Intermediate/hssc) Level students.Here You can prepare all Computer Chapter 1 Overview of computer System short question in unique way and also attempt quiz related to this chapter. Just Click on Short Question and below Answer automatically shown. After each question you can give like/dislike to tell other students how its useful for each.
Class/Subject: 11th Class Computer
Chapter Name: Overview of computer System
Board: All KPK Boards
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KPK 11th Class Computer Chapter 1 Overview of computer System Short Questions Answers
Definition: Computer is an electronic device capable of performing computations and making logical decision at a speed of million or even billion of times faster than human beings.
The process of performing different operations on existing date is called processing operation. E.g. when computer performs addition of two numbers it is called processing. The central Processing Unit performs processing tasks.
Block Diagram of Ciomputer
Storage UnitCentral Processing Unit (CPU)
Notebook computer is generally smaller than a briefcase and conveniently used in airplanes, cares, temporary offices, and at meetings. Notebook computers are especially designed for mobile computing, wireless communication and Internet access.
|Hardware is physical components of the computer used for processing of data.
|Software is set of instructions that tell computer what to do.
|Hardware is replaced if the problem is not solved
|Soft is installed if the problem is not solved.
|3 Finding and removing errors in hardware is called Troubleshooting.
|Finding and removing error in software is called Debugging.
|4 Hardware types are input, storage, processing, output etc.
|Software types are System software and Application software.
|Examples of hardware
DC-ROM, monitor, printer, vidio card, scanners, lable makers, routers, and modems.
|Examples of software:
Adobe Acrobat, Internet Explorer, Microsoft Word, Microsoft Excel.
|It translates the statements of the source code one by one and execute immediately.
|It translates a program into machine code as a whole.
|Program execution is slow.
|Program execution is file.
|It does not create object code file.
|It creates object code fils.
|Translator program is required to translate the program each time user wants to run the program.
|Translator program is not required to translate the program each time user wants to run the program.
|Programming language like BASIC, PHP use interpreters.
|Programming language like C, C++ use compilers.
Application software is used in a variety of fields in daily life. Some of the fields in which application software is mostly used are given below.
In Office: In many offices, application software is used for word processing instead of using typewriters.
In Banks: Banks keep most of their record and data in database and other application software like MS Word and MS Excel, through which fast services are provided to the customers.
In Business: Today commercial business cannot be run without the use of application software. Different offices can communicate with each other through latest application softwaere
In Education: Applicationsoftware is playing a very important role in the education. It is being used in school, colleges and universities for education purpose.
|Freeware refers to software that anyone can download from the internet and use for free.
|Shareware give users a chance to try the software before buying it.
|All the features are free and available for use.
|Most of the times, all features are not available, or not available, or have limited use. To use all the features of the software, user has to purchase the software.
|Freeware programs can be distrbuted free of cost.
|Shareware may or may not be distributed freely. In many cases, author’s permission is needed, to distribute the shareware.
|Examples of freeware software are Adobe PDF, Google Talk, Yahoo messenger, MSN messenger.
|Examples of shareware software are Winzip, Cuteftp, Getright.
A licensed software means giving right to use the software under certain conditions but restricted from other uses such as modification, further copying and distribution etc. under right of the copyright holder.
Licensed software includes MS Windows, Adobe Photoshop, skype, MS Office etc.
Firmware is small program that is stored on a computer or other hardware device that provides instruction on how that device should operate. Unlike normal software, firmware cannot be changed or deleted firmware are ROM, Cell phones, Digital cameras etc.