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Computer Question & Answers

Q 1	What is volatile memory?
Ans	It memory holds data temporary is called volatile (RAM).
Q 2	What is program?
Ans	Set of instructions is called program.
Q 3	What is the size of Microfloppy?
Ans	3.5 inch.
Q 4	DMA is the acronym of what?
Ans	Direct Memory Access.
Q 5	What is compiler?
Ans.	It is the translator which translator whole program at a time.
Q 6	What is interpreter?
Ans.	It is a translator which translator program line by line.
Q 7	What is fuzzy logic?
Ans.	It is the computer base intellectual system of solving complicated problems.
Q 8	What is AI?
Ans.	Artificial Intelligence.
Q 9	What is the value of decimal number?
Ans.	0
Q 10	What is the value of C in Hex decimal?
Ans.	2.
Q 11	Binary number 0 $ 1 decimal number?
Ans.	On & off.
Q 12	How many bytes are there in one kilobyte?
Ans.	1O24 bytes.
Q13	Which command makes replicas of files in DOS?
Ans	Copy.
Q  14	What do you mean by GUI?
Ans.	Graphical User Interface.
Q 15	How much long file name can be in windows?
Ans.	254 Char.
Q 16	How many pins are there in serial port?
Ans.	25.
Q 17	Which one port is faster serial or parallel?
Ans.	Parallel.
Q 19	What is menu?
Ans.	List of options or commands.
Q 20	What is window?
Ans.	Rectangle area of program is called window.
Q 21	What is the purpose of ellipses?
Ans.	They represents dialog box.
Q 22	What is the shortcut of shortcut icon?
Ans.	Shift + Drag the icon.
Q 23	What is desktop?
Ans.	Over all work area of window.
Q 24	How many types of icons?
Ans.	There are two main types.
Q 25	Which part of taskbar display program indicators?
Ans.	Notification area.
Q 26	Which of these buttons dialog box contain? Minimize, Maximize, Close?
Ans.	Close button.
Q 27	Which keyboard macro is used to toggle start menu?
Ans.	Win key.
Q 28	What is the property of option buttons?
Ans.	To select any single command...
Q 29	What is the function of ESC key of keyboard?
Ans.	To cancel current job
Q 30	What is multitasking?
Ans.	Running more than one program at time.
Q 31	What is the abbreviation of MICR?
Ans.	Magnetic Ink Character Recognition.
Q 32	What is computer system?
Ans.	Set of CPU Monitor and keyboard is called computer system.
Q 33	33. LCD Stand for what?
Ans	Liquid Crystal Display.
Q 34	What is DM?
Ans	Disk Manager.
Q 35	What is the plug and play?
And	It is utility program used to quickly detect hardware.
Q 36	What is word processing?
Ans	Creating textual documents.
Q 37	What is spread sheet program?
Ans	A program that allows you to store data in format of columns and rows.
Q 38	What is the name of second lass menu of MS-Word?
Ans	Window.
Q 39	What is the keyboard shortcut for center aligns?
And	Ctrl + E
Q 40	What is the normal fond size?
Ans	12
Q  41	What is the use of condensed technique in MS-word?
Ans	Reduce character spacing.
Q 42	Which keyboard shortcut is used to open fond dialog box?
Ans	Ctrl + D
Q 43	Tell any three alternates of using spelling & grammar checking?
And	Tools menu, tool bar, F7
Q 44	What is the name of third last menu in Ms Excel?
Ans	Data menu
Q 45	Which tool is used to quickly scroll within document?
Ans	Browser or document navigator
Q 46	How much case formats supported by Ms-Word?
Ans	Five
Q 47	What is the end product of MS word?
Ans	Document
Q 48	What is the name of editor of MS-word?
Ans	Document
Q 49	How many methods are used to create table in MS word?
Ans	Two, insert and draw.
Q 50	Which one is the faster way to create table in MS word?
Ans	Insert table
Q 51	Which options is used to combine multiple cells?
Ans	Merge cells
Q 52	How many types of aligning are used in MS Word?
Ans	Four
Q 53	Which tool is used to create banner type entries?
Ans	Word art.
Q 54	What is difference between outline view and master document view?
Ans	In master document view a master too bar appear
Q 55	What is flying out menu?
Ans	Menu appears from within other menu
Q 56	What is the purpose of ctrl + Shift + D?
Ans	Double underline
Q 57	Which tool bar contains “Spelling & program” tool?
Ans	Standard toolbar.
Q 58	What is the purpose of thesaurus?
Ans	To search synonyms same meaning words for particular words
Q 59	What is workbook?
Ans	Document of excel is called workbook
Q 60	What is cell reference?
Ans	Name of cell is called cell reference
Q 61	How many work sheets are there in single workbook?
Ans	There are 255 work sheets in a single workbook.
Q 62	How many columns are there in a single worksheet?
Ans	There are 256 columns
Q 63	How many rows are thee in a single worksheet?
Ans	65536
Q 64	How many cells are there in a single worksheet
Ans	1677216
Q 65	What is the function of formula bar?
Ans	It is to edit formulas and also displays the content of active cell
Q 66	What is the function of name box?
Ans	It display the name of active cell
Q 67	How many types of cell references are there in MS Excel?
Ans	Four
Q 68	What is obsolete cell reference?
Ans	In absolute reference column header and raw header are prefixed with $ sing
Q 69	What is the normal width of column in MS Excel?
Ans	8.40 char
Q 70	What is the minimum height of row in MS Excel?
Ans	0
Q 71	What is the purpose of product function?
Ans	To multiplies the given data range
Q 72	What is essential unit in between formula & functions?
And	Equal sign
Q 73	What is Argument?
Ans	Value placed within parenthesis of functions called argument.
Q 74	What is Operand?
Ans	Operand is a value on which operator can perform operation
Q 75	What is Operator?
Ans	Any symbol or character which performs operation of operands
Q 76	Which is the reference operator?
Ans	, And :
Q 77	What is the function of Ctrl + 1 in Excel?
Ans	Open cell dialog box
Q 78	What is the meaning of F2 in Excel?
Ans	To edit data in a cell
Q 79	What is auto filter?
Ans	It is used to display only desire items from list
Q 80	What is the data validation?
Ans	It is used to restrict the invalid data entries in cells
Q 81	In which condition And( ) function returns true?
Ans	When its both conditions are true
Q 82	What is Int( )?
Ans	It returns integer values.
Q 83	What is abs( )?
Ans	It converts negative values into positive.
Q 84	What in function?
Ans	Predefined formula or procedure that performs specific task is called function
Q 85	How many types of charts are used in MS excel?
Ans	12
Q 86	What is formula?
Ans	It is user defined entry used to perform specific calculations
Q 87	What is work of fill command?
Ans	It is used to fill data series.
Q 88	What is 3-D reference?
Ans	It is a cell reference contains three directions, worksheet, column and row
Q 89	What is presentation?
Ans	View of thoughts
Q 90	What is wizard?
Ans	Step by step process used to accomplish a task is called wizard
Q 91	Which is fast way to create presentation?
Ans	Auto content wizard
Q 92	What is transition?
Ans	It is special type of animation applied on slide
Q 93	What is different b/w transition and animation?
Ans	Transition is effect able slide, while animation is effect able on objects of slide
Q 94	How may types of view buttons in power point?
Ans	Five
Q 95	What is slide sorter view?
Ans	This view displays all available slides of presentation in its origin.
Q 96	What is different b/w outline and slide sorter view?
Ans	Outline view display only number and content of all slides, while sorter view display whole slide of presentation
Q 97	At a time only one effect can be applied on objects, true or false?
Ans	False
Q 98	What is internet?
Ans	It is the world wide network of networks
Q 99	What is LAN?
Ans	Local Area Network
Q 100	What is protocol?
Ans	It is the Set of Rules & Regulation used by computers.
Q 101	What is the abbreviation of FTP?
Ans	File Transfer Protocol
Q 102	Name of any three search engines?
Ans	Google, Altavista, Hotbot, Yahoo
Q 103	What is WWW?
Ans	World Wide Web
Q 104	What is domain?
Ans	Domain is the computer on internet which provides you particular service.
Q 105	What is Modem?
Ans	It is the combination of Modulation & Demodulation, which converts analog signals into digital signal and digital into analog via telephone tine.
Q 106	What is browser?
Ans	It is a program used to access website
Q 107	What is server?
Ans	Server is the compute on network that provides service to clients.
Q 108	What is client?
Ans	Client is also computer which used services from Server.
Q 109	What is downloading?
And	Loading data from remote computer
Q 110	What is uploading?
Ans	Saving data on remote computer
Q 111	What is virus?
Ans	It is a program which replicates itself and damage other software
Q 112	What makes ALU & CU?
Ans	Microprocessor
Q 113	What is loading?
Ans	Caring data from secondary memory to main memory is called loading.
Q 114	What is warm boot?
Ans	Process of restarting of running computer is called warm boot
Q 115	It is stand for FAT?
Ans	File Allocation Table
Q 116	It is stand for NTFS?
Ans	New Technology Files System
Q 117	It is stand for ISDN?
Ans	Integrated Services Digital Network
Q 118	What is virtual memory?
Ans	It is the space of hard disk used as a RAM
Q 119	What is I.T?
Ans	It is the technology, which merges computer and telecommunication Technology.
Q 120	What is multimedia?
Ans	Data in the format of text, graphics, sound, pictures and animation
Q 121	What is saving?
Ans	Making data secure for future use on secondary memory storage is called saving
Q 122	What is folder icon?
Ans	It is used to categorize the files or programs
Q 123	What is scandisk?
Ans	It is a routine used to scan surface of hard disk for errors
Q 124	What is control panel?
And	It is used to set hardware & software configuration in Window Operating System.
Q 125	What is the purpose of accessibility options?
Ans	Accessibility options are facilities  to special peoples
Q 126	Which document view supports all capabilities of MS-Word?
Ans	Page layout, print layout
Q 127	What is language?
Ans	It is one type of application software it had its own syntax to make computer software
Q 128	What is translator?
Ans	It is a program which reads and translates user written program into machine read able form
Q 129	VDU stands for what?
Ans	Visual Display Unit
Q 130	What is processing?
Ans	It is execution of data
Q 131	What is memory?
Ans	It is the storage media of computer
Q 132	What is operating system?
Ans	It is system software that controls the over all functions of computer.
Q 133	What is HTML?
Ans	Hyper Text Markup Language used for make web pages
Q 134	What is website?
Ans	A document access able on internet
Q 135	How many arguments used in IF()?
Ans	Three
Q 136	Which is the decision making statement?
Ans	IF is the decision making statement
Q 137	What is the abbreviation of AGP?
Ans	Accelerated Graphics Port
Q 138	With which port mouse is connected?
Ans	Com 1, PS2, USB
Q 139	How may types of RAM?
Ans	SIMM & DIMM (single inline memory module, double inline memory module)
Q 140	Name any three pointing devices?
Ans	Mouse, Touchpad, Pointing Stick
Q  141	What is the default zoom size?
Ans	100%
Q 142	How many columns can be inserted using insert table option?
Ans	63
Q 143	Which function returns remainder value?
Ans	Mod ( )
Q 144	What is the normal resolution of monitor?
Ans	640 X 480
Q 145	How you can create tracks and sectors on Disk?
Ans	Using format command we can create tracks and sectors
Q 146	What is the purpose of red underline in MS-Word?
Ans	Spelling error
Q 147	What is the purpose of green underline in MS-Word?
Ans	Grammar  error
Q 148	Which tool bar contains Promote & Demote button?
Ans	Outlining
Q 149	How many types of cache memory?
Ans	Two (internal & external)
Q 150	DPI stands for?
Ans	Dot Per Inch
Q 151	Name of MS-Word file?
Ans	Document
Q 152	Name of MS-Excel file?
Ans	Worksheet
Q 152	Name of MS-Power point file?
Ans	Presentation

1.   The term computer is derived from the word compute.

2.   The computer is used to process data and produce information.

3.   Computer is an electronic calculating machine.

4.   A microcomputer is 1000 times longer than nanosecond.

5.   Desktop publishing refers to the capability of producing camera-ready documents from the confines of desktop.

6.   Hardware, software, people, producers, and data are combined to create an information system.

7.   The microcomputer productivity tools that manipulates data organized in tabular structure of rows and columns is called a spreadsheet.

8.   Edutainment software combines education and entertainment.

9.   Word processing software enables users to enter and edit text in documents in preparation for output.

10.    Spreadsheet software permits users to work with rows and columns of data.

11.    Database software permits users to create and maintain a database and to extract information from the database.

12.    Charles Babbage is known as the father of modern computers.

13.    Mark I, ENIAC, UNIVAC I are the example of first generation computers.

14.    Mark I was first all-electronic computer produced by Howard H. Aiken in 1944.

15.    ENAIC stands for electronic numerical integrator and computer.

16.    EDVAC stands for electronic discrete variable automatic computer.

17.    UNIVAC stands for universal automatic computer.

18.    The first commercially available computer developed in the year 1951 was UNIVAC.

19.    Vacuum tubes were used in first generation of computers.

20.    Transistors were used in second generation of computers.

21.    Integrated circuits were used in third generation of computers.

22.    LSI stands for large scale integration.

23.    Computer microchips are electronic devices.

24.    The fifth generation computers are intelligent machines, processing artificial intelligence.

25.    A computer processes data to form information,

26.    There are three types of computers.

27.    A microcomputer’s CPU consists of single microprocessor.

28.    Digital computer works with data in discrete form.

29.    The analogue computers deals with continuously varying physical quantities.

30.    Hybrid computers combine the characteristics of both analogue and digital computers.

31.    Mainframe computers are generally used by large businesses.

32.    Microcomputers are very small, low cost and digital computers.

33.    The term supercomputer is commonly applied to the fastest high-performance systems available at any given time.

34.    Cray T90 is a supercomputer.

35.    Typical supercomputers execute trillion of instruction per second.

36.    General purpose computers are designed to solve a large variety of problems.        Special purpose computers are designed to solve a specific problem.

37.    Input & Output devices as well as storage device are categorized as Peripheral.

38.    Both large mainframe systems and personal computers systems have the same four components: Input, Central Processing Unit, Output and Secondary or auxiliary storage.

39.    They keys with little arrows on keyboard are called Cursor-Movement Keys.

40.    A dumb terminal can be used only to input receive data it cannot do any independent processing.

41.    CPC symbols on packaged goods are read by devices called Bar-Code Readers.

42.    The Device that can read pre-printed characters through the use of light sensitive device and convert them to computer-useable form is called an Optical Character Recognition Device (OCR).

43.    A voice-input device converts a person’s speech into digital code that your computer can understand.

44.    A mouse is rolled about on the desktop to direct a pointer can on the computer display screen.

45.    Two hand-hold input devices that reduce the need for keying are the mouse and the Light Pen.

46.    The term CPU is an abbreviation for Central Processing Unit.

47.    The small silicon ships that contain the CPU of a microcomputer are called Microprocessor.

48.    Silicon is the semiconductor material commonly used to make integrated circuits (Chips).

49.    The Bus links the CPU to every hardware device in the computer system.

50.    The CPU’s tow components are the Control Unit & Arithmetic / Logic Unit.

51.    The Control Unit is the CPU component that manages the processing of Data.

52.    The part of CPU that does math and logic function is the Arithmetic / Logic Unit.

53.    During processing, data or instruction are held in temporary storage placed called Registers.

54.    The power supply is located inside the system unit and converts AC current to DC current to run the computer.

55.    The main circuit board in a system unit is called the Motherboard.

56.    The system clock is located inside the system unit and controls how fast all the operations within the computer take place.

57.    To attach a joystick or similar game-playing device to a computer the system unit must include a game port.

58.    If data is stored in Volatile memory, it will be lost if the power goes off.

59.    Is the data on an internal hard disk volatile or non-volatile? Non-Volatile.

60.    RAM stand of Random Access Memory.

61.    Is RAM volatile or non-volatile? Volatile.

62.    ROM stands for Read Only Memory.

63.    BIOS-ROM stands for Basic Input Output System-Read Only Memory.

64.    A kilobyte is 1024 bytes.

65.    There are now two kinds of more flexible ROM memory: PROM which stands for Programmable Read Only Memory and EPROM which stands for Erasable Programmable Read Only Memory.

66.    ASCII stands for American Standard Code for Information Interchange.

67.    EBCDIC stands for Extended Binary Coded Decimal Interchange Code.

68.    Output is available in two principal forms: Hard Copy and Soft Copy.

69.    The more pixel that can be displayed on the screen the better the resolution of the image.

70.    Voice-Output devisees convert Digital data into speech-like sounds.

71.     Impact printers that form characters using pins in rectangular patterns are called Dot-Matrix Printers.

72.    Two advantages of impact printers are 1. They are Inexpensive & 2. They can Produce Carbon Copy.

73.    Postscript and PCL are Printer Languages: they describe the shape and position of letter and graphics to laser printer.

74.    Plotter can produce high-quality graphics and are used most often for outputting maps and architectural drawings.

75.    The computer device that creates microfilm output in the computer output Microfilm (COM).

76.    Some microcomputers have an internal hard disk that can hold large amounts of data. Is this primary storage or secondary storage? Secondary Storage.

77.    Microcomputers usually used soft-sectored disks: the sectors are put on the disk when it is formatted or initialized.

78.    The Standard diskette size is 3 ¹/₂ inches.

79.    Double sided, high density 3 ¹/₂ inch diskette holds 1.44 MB of data.

80.    On a diskette, data is recorded in rings called tracks.

81.    Magnetic disk record addresses are based on three locations: the Surface number, Sector number and Track number.

82.    The mechanism that enables data on a disk to be read or data to be written to a disk is called read / write head.

83.    A write / protect feature allows you to protect a diskette from being written on.

84.    The device that transfers data on a disk to the computer, and from the computer to the disk, is called the diskette drive.

85.    Magnetic tapes have been replaced for the most part by magnetic disks.

86.    Backup is the name given to duplicate storage.

87.    Even in systems that process data on disks, tapes are often used for Backing up.

88.    Tape density is the measure of how much data can fit on an inch to tape, and it is measured in bpi which stands for Bits per Inch or Bytes per Inch.

89.    The time needed by a disk storage system to locate a disk record is called access times.

90.    An Optical Disk is a removable disk on which data is written and read through the use of laser beams.

91.    Data means, number, facts or anything needed to work out a problem.

92.    The sequence of instructions written in computer language is called Program.

93.    The person who written a program is called Programmer.

94.    Translator converts a program written in High Level Language into Machine Language.

95.    High level languages are more suitable for human use than are machine language.

96.    The output of the computer language translate is called Object Program.

97.    The object program is in machine language.

98.    The program prepared by programmer is called Source Program.

99.    Compiler and interpreter are used to converts High level language into machine language.

100.    A computer program used to translate a program written in assembly language into a machine language is known as Assembler.

101.    A low level language comprises of binary 0s and 1s.

102.    Programming in high level language is an easy task.

103.    Basic language is a high level language.

104.    Procedure oriented or problem oriented language have the advantage that they do not require the user to have a detailed knowledge of the internal structure of computer.

105.    The word processing feature that eliminates having to press the enter key at the end of every line is called justification.

106.    Many word processor packages with a graphics interface let you more up or down in document through the use of scroll bar.

107.    Insert mode is used to add a new word between two exiting words.

108.    Cut & Paste operation involves moving an existing segment of text from one place to another.

109.    Find & Replace features are used to change every occurrence of Ahmed to Jamal.

110.    Macro lets you to record of series of keystroke and Play them back it any time.

111.    The intersection of a row and a column is a worksheet is called a Cell.

112.    The range of C3:D6 to C3, C4, C5, C6, D3, D4, D5 and D6 sets of cells.

113.    Macro is the spreadsheet feature that allows you to store a long sequence of keystrokes and replay it later by pressing a single combination of keys or selecting a menu option.

114.    A general-purpose worksheet that lets you perform a task by simply filling in the balks is called template.

115.    A Modem coverts digital signals into analogue signals for transmission over phone line.

116.    Network allows users simultaneous access to shared programs and data.

117.    LANs connect computers that are relatively close together, whereas WANs join multiple LANs that are spread over large geographical area.

118.    The physical layout of a LAN is known as the topology.

119.    LAN topologies can be a BUS, STAR, RING or HYBRID.

120.    Hybrid network is the type of LAN that combines star, ring and bus network.

121.    Before a microcomputer in a LAN can send and receive messages, a network interface card must be inserted into expansion slot in a computer.

122.    Client / Server LAN consists of requesting microcomputers and supplying devices that provide a service.

123.    Peer To Peer LAN is type of LAN in which all microcomputers on the network communicate directly with one another with out relaying on a server.

124.    Full-Duplex transmission sends data in both directions simultaneously, similar to two trains passing in opposite direction on side-by-side tracks.

125.    A Wide Area Network is a communication network that covers a wide geographical are, such as province or a country.

126.    The internet was created for the U.S Department of Defense as a toll for military communication.

127.    The Internet carries messages, documents, programs and data files that contain every imaginable kind of information.

128.    Computers on the internet must use the same Protocols.

129.    Gateway interface enables dissimilar networks to communicate with one another.

130.    If someone had an e-mail address of mazeem@hud.gov.pk, you probably would assume that he worked for the Pakistan government.

131.    Major features of internet are e-mail, Usenet, Telnet, File transfer protocol, and Chat.

132.    Programs added to the internet that use the basic services include Archie Gopher, WAUS, and World Wide Web.

133.    If you wants shareware program that is available on a computer on the internet, you could transfer the program to your computer using FTP.

134.    Archie is a program available on the internet that helps you find Files.

135.    The symbol that separates the username form the domain name in an e-mail address is “At @”.

136.    E-mail is personal communication, anywhere in the world to another internet user.

137.    The two parts of an e-mail address the User Name and the Domain Name.

138.    Usenet is e-mail at a group level consisting of more than 15,000 newsgroups on a multitude of topics.

139.    Telnet enables you to access remote computers outside your areas such as libraries, computer database.

140.    The World Wide Web (WWW) uses Usenet, Telnet and FTP access to create a hypermedia system.

141.    The World Wide Web is the dominate technology on the Internet.

142.    Hypertext is a system in which documents scattered access many internet sites are directly linked so that a word or phrase in one document becomes a connection to a documents in different place.

143.    Rules for communication are called Protocols.