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Thursday, August 16, 2012

Computer General Knowledge,Computer Questions and Answers

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1. In Windows XP, if you want to see the file size and modified dates of all files in a folder, the best viewing option is the __________ view.
A List
B Thumbnails
C Details
D Icon
Answer: C


2. The _____ button on the quick access Toolbar allows you to cancel your recent commands or actions.
(A) Search
(B) Cut
(C) Document
(D) Undo
(E) None of these
Ans (D)

3. The definition of thrashing is:
A swapping data between virtual memory and RAM too frequently.
B insufficient hard disk space.
C too many processors being managed by the operating system.
D inaccurate information stored in the registry.
Answer: A
4. ________ Software allows users to perform calculations on rows and columns of data.
(A) Word processing
(B) Presentation graphics
(C) Database Management Systems
(D) Electronic Spreadsheet
(E) None of these
Ans (C)
5. A _________ represent approximately one billion memory locations.
(A) kilobyte
(B) megabyte
(C) gigabyte
(D) terabyte
(E) None of these
Ans (C)
6. ______ cells involves creating a single cell by combining two or more selected cells.
(A) Formatting
(B) Merging
(C) Embedding
(D) Splitting
(E) None of these
Ans (B)
7. The operating system is the most common type of ______________ software.
(A) communication
(B) application
(C) system
(D) word-processing
(E) None of these
Ans (C)
8. When you quickly press and releaes the left mouse button twice , you are ____
(A) Primary-clicking
(B) pointing
(C) Double-clicking
(D) Secondary-clicking
(E) None of these
Ans (C)
9. The horizontal and vertical lines on a worksheet are called ___
(A) cells
(B) sheets
(C) block lines
(D) gridlines
(E) None of these
Ans (D)
10. To delete an incorrect character in a document, __________ to erase to the right of the insertion point.
(A) press the left mouse key
(B) double-click the right mouse key
(C) press the BACKSPACE key
(D) press the delete key
(E) None of these
Ans (D)
11. The operating system does all of the following EXCEPT:
A provide a way for the user to interact with the computer.
B manage the central processing unit (CPU).
C manage memory and storage.
D enable users to perform a specific task such as document editing.
Ans (D)
12. During the boot process, the ____________ looks for the system files.
A CD
B. BIOS
C. CPU
D. DVD
AnS (B)
13. ____________ are lists of commands that appear on the screen.
A GUIs
B Icons
C Menus
D Windows
Answer: C
14. ____________ is the ability of an operating system to control the activities of multiple programs at the same time.
A Multitasking
B Streamlining
C Multiuser
D Simulcasting
Answer: A
15. The unique signal, generated by a device, that tells the operating system that it is in need of immediate attention is called an:
A action.
B event.
C interrupt.
D activity.
Answer: C
16. The operating system controls access to the processor by assigning a(n) ____________ to each task requiring the processor’s attention.
A CPU
B slice of time
C stack
D event
Answer: B
17. The blocks of code, included in the operating system, that software applications interact with are known as:
A application programming interfaces (APIs).
B complimentary metal-oxide conductors (CMOS).
C device drivers.
D bootstrap loaders.
Answer: A
18. MS-DOS is a ____________ operating system.
A point-and-click
B user-friendly
C command-driven
D Mac
Answer: C
19. An interrupt handler is a(n):
A location in memory that keeps track of recently generated interrupts.
B peripheral device.
C utility program.
D special numeric code that indicates the priority of a request.
Answer: D
20. A spooler is a(n):
A location in memory that maintains the contents of a document until it prints out.
B print job.
C program that coordinates the print jobs that are waiting to print.
D message sent from the printer to the operating system when a print job is completed.
Answer: C
21. Virtual memory is typically located:
A on a floppy disk.
B in the CPU.
C in a flash card.
D on the hard drive.
Answer: D
22. The purpose of a swap (or page) file is to:
A maintain pages of documents that are being spooled to the printer.
B hold a program’s data or instructions in virtual memory when it can’t fit in RAM.
C prevent thrashing in a multitasking environment.
D allow multiple print jobs to print their pages out simultaneously.
Answer: B
23. In Excel, any set of characters containing a letter , hyphen, or space is considered ___
(A) a formula
(B) text
(C) a name
(D) a title
(E) None of these
Ans (B)
24. All of the following are TRUE of Safe Mode EXCEPT:
A Safe Mode is a special diagnostic mode.
B Safe Mode loads all nonessential icons.
C Safe Mode allows users to troubleshoot errors.
D Safe Mode loads only the most essential devices.
Answer: B
25. Verification of a login name and password is known as:
A configuration.
B accessibility.
C authentication.
D logging in.
Answer: C
26. The combination of the operating system and the processor is referred to as the computer’s:
A CPU.
B platform.
C BIOS.
D CMOS.
Answer: B
27. The following message generally means:
A a nonsystem floppy has been left in the floppy disk drive.
B the CD drive is not functioning.
C the BIOS is corrupted.
D there is a problem loading a device.
Answer: A
28. Which of the following is the correct sequence of actions that takes place during the boot-up process?
A Load operating system ? Activate BIOS ? Perform POST ? Check configuration settings
B Activate BIOS ? Perform POST ? Load operating system ? Check configuration settings
C Perform POST ? Load operating system ? Activate BIOS ? Check configuration settings
D Activate BIOS ? Check configuration settings ? Perform POST ? Load operating system
Answer: B
29. All of the following are steps involved in the boot process EXCEPT:
A load the operating system into RAM.
B the power-on self-test.
C activate the basic input/output system (BIOS).
D load application programs.
Answer: D
30. The ____________, stored on a ROM chip, is responsible for loading the operating system from its permanent location on the hard drive into RAM.
A BIOS
B API
C device driver
D supervisor program
Answer: A
31. The basic input/output system (BIOS) is stored in:
A RAM.
B ROM.
C the CPU.
D the hard drive.
Answer: B
32. Ensuring that the essential peripheral devices are attached and operational is the ____________ process.
A configuration
B CMOS
C POST
D ROM
Answer: C
33. The memory resident portion of the operating system is called the:
A registry.
B API.
C CMOS.
D kernel.
Answer: D
34. Which of the following does NOT occur during the power-on self-test (POST)?
A The ScanDisk utility begins to run.
B The video card and video memory are tested.
C The BIOS identification process occurs.
D Memory chips are checked to ensure they are working properly.
Answer: A
35. All of the following are TRUE regarding virtual memory EXCEPT:
A any amount of RAM can be allocated to virtual memory.
B the setting for the amount of hard drive space to allocate to virtual memory can be manually changed.
C this temporary storage is called the swap file (or page file).
D virtual memory is physical space on the hard drive.
Answer: A

36. The operating system allows users to organize the computer’s contents in a hierarchical structure of directories that include all of the following EXCEPT:
A files.
B folders.
D drives.
D systems.
Answer: D

37. All of the following statements concerning windows are true EXCEPT:
A windows are an example of a command-driven environment.
B windows can be resized and repositioned on the desktop.
C more than one window can be open at a time.
D toolbars and scrollbars are features of windows.
Answer: A
38. All of the following statements concerning files are true EXCEPT:
A A file is a collection of related pieces of information stored together for easy reference.
B Files can be generated from an application.
C Files are stored in RAM.
D Files should be organized in folders.
Answer: C
39. Using Windows Explorer, a plus (+) sign in front of a folder indicates:
A an open folder.
B the folder contains subfolders.
C a text file.
D a graphics file.
Answer: B
40. If a word is typed that is not in Word’s dictionary, a ___ wavy underline appears below the word.
(A) red
(B) green
(C) blue
(D) black
(E) None of these
Ans (A)
41. Register is a
(a) Set of capacitors used to register input instructions in a digital computer
(b) Set of paper tapes and cards put in a file
(c) Temporary storage unit within the CPU having dedicated or general purpose use
(d) part of the auxiliary memory
(e) device to convert current signal into voltage signal
Ans (c)
42. Errors in computer results could be due to
(a) encoding of data (b) transmission of data
(c) manipulation of data (d) all of the above
(e) none of above
Ans (d)
43. Terminal is a
(a) device used to give supply to a computer
(b) Point at which data may leave or enter the computer
(c) ending point in a program
(d) point where wires are interconnected
(e) an input/output device
Ans (b)
44. A computer programmer
(a) enters data into computer
(b) writes programs
(c) changes flow chart into instructions
(d) provides solutions to complex problems
(e) does total planning and thinking for a computer
Ans (e)
45.Pickup wrong definition
(a) Off line - is a system peripheral equipment not controlled by CPU
(b) Online - is system in which peripheral equipment is in direct contact with CPU
(c) Peripherals - are hardware under the control of CPU, like punched card readers, tapes, drums, disk, output devices
(d) PL/I is the acronym Peripheral Listing /Index
(e) Program or routine is a set sequence of instructions given to computer for problem solving
Ans (d)
46. When a CD (Compact Disc used in audio and Video system) is seen in sunlight, rainbow like colours are seen. This can be explained on the basis of phenomenon of
(a) reflection and diffraction
(b) reflection and transmission
(c) diffraction and transmission
(d) refraction, diffraction and transmission
(e) none of these
Ans (d) Internet is an inter-networking of information from one part of the network to any other provided the information is packed according to certain conventions

47. For reproducing sound, a CD (Compact Disc) audio player uses a
(a) quartz crystal
(b) titanium needle
(c) laser beam
(d) barium titanium ceramic
(e) none of these
Ans (c) LASER stands for Light Amplification by Stimulated Emission of Radiation
48. The memory of a computer is commonly expressed in terms of Kilobytes or Megabytes. A byte is made up of
(a) eight decimal digits (b) eight binary digits
(c) two binary digits (d) two decimal digits (e) none of these
Ans (b) A byte consists of 8 bits—8 binary digits
49. Which of the following circuit is used as a 'Memory device' in computers?
(a) Rectifier (b) Flip-Flop (c) Comparator (d) Attenuator (e) none of these
Ans (b) Flip-flop refers to an electronic component which can adopt one of two possible states -0 or 1. It acts as an electronic switch which gets changed its state when input signals are received
50. Which is/are the main provisions of Information Technology (IT) Act, 2000?
(a) Legal recognition to digital signatures and documents.
(b) Finalisation of contracts through electronic media.
(c) Making hacking with computer system an office.
(d) All of the above
Ans (d)
51. Consider the following statements about Internet facility:
I. It serves as the largest one-line information system.
II. It provides the most dependable and latest mode for sending E-mail.
III. Recurring expenditure on communication E-mail is very high.
IV. It is often misused and has triggered cyber-crimes.
Which of these statements are correct?
(a) I, II and IV (b) I and IV (c) II, III and IV (d) II and III
Ans (a)
52. The computer device primarily used to provide hard copy is the
(a) CRT (b) Line Printer (c) Computer Console (d) Card Reader
Ans (b)
53. The unit of hardware, which an operator uses to monitor computer processing, is the
(a) Card Reader (b) CPU (c) Line Printer (d) Console
Ans (d)
54. Computers can be classified in which of the following hierarchical orders?
(a) PC, Large, Super Micro, Super Computer
(b) Super Micro, PC, Large, Super Computer
(c) PC, Super Micro, Large, Super Computer
(d) Large, Super Micro, Super Computer, PC
Ans (c)
55. Which one of the following is a stored program machine?
(a) Micro-processor (b) Calculator
(c) Analog-computer (d) Micro-computer
Ans (d)
56. First generation computer systems used
(a) Transistors (b) Vacuum tubes
(c) Magnetic cores (d) Silicon chips
Ans (b)
57. Transistors are associated with which computer system?
(a) First generation (b) Fifth generation
(c) Second generation (d) None of these
Ans (c)
58. Charles Babbage invented
(a) ENIAC (b) Difference engine (c) Electronic computer (d) Punched card
Ans (b)
59. Who wrote the book 'Computer Liberation and Dream Machine', the first book on personal computers?
(a) John McCarthy (b) Ted Nelson (c) Niklaus Wirth (d) Karl Capek
Ans (b)
60. Who was the inventor of mechanical calculator for adding numbers?
(a) Charles Babbage (b) Peano (c) Newton (d) Pascal
Ans (D)
61. The most widely used commercial programming computer language is
(a) BASIC (b) COBOL (c) FORTRAN (d) PASCAL
Ans (b) Cobol is abbreviated term for Common Business Oriented Language. It is high level programme language designed to assist the task of programs by enabling them to write programme in more simple manner
62.The brain of a computer is
(a) CPU (b) CD (c) Floppy disc (d) Megabyte
Ans (A) CPU is abbreviated term for Central Processing Unit. It is the principal operating part of a computer
63. Foxpro' is
(a) a medicine (b) a disease (c) a computer language (d) an animal
Ans (C)
64.In computer language, one kilobyte equals
(a) 1000 bytes (b) 1024 bytes (c) 100 bytes (d) 8 bytes
Ans (b) The memory of a computer is commonly expressed in terms of kilobytes
65. Which one of the following is not a programming language of a computer?
(a) BASIC (b) FORTRAN (c) LASER (d) PASCAL
Ans (c)
66.Which of the following packages is used for composition in printing press?
(a) Lotus (b) dBase (c) Page Maker (d) Word Perfect
Ans (c)
67. Which one of the following is not a computer language?
(a) BASIC (b) COBOL (c) LOTUS (d) FORTRAN
Ans (d)
68. The individual within the operations group who ordinarily uses a variety of keyboard devices, is the
(a) Data Clerk (b) Keypunch Operator
(c) Data Entry Clerk (d) Computer Operator
Ans (c)
69. An advantage of a distributed word processing network is
(a) increased number of reports handled
(b) less delay in inter-office communications
(c) greater corporate control over outputs
(d) All of these
Ans (b)
70.The retrieval of information from the computer is defined as
(a) collection of data (b) data retrieval operations
(c) output (d) data output collection
Ans (c)
71. Which of the following terms could be used to describe the concurrent processing of computer programs via CRTs, on one computer system?
(a) Time sharing (b) On-line processing
(c) Interactive processing (d) All of these
Ans (d)
72.The daily processing of corrections to customer accounts best exemplifies the processing mode of
(a) batch processing (b) real-time processing
(c) time-sharing (d) off-line processing
Ans (a)
73. A characteristic of card system is
(a) slowness in processing data
(b) using cards as records of transactions
(c) needing a larger data staff
(d) All of these
Ans (d)
74. Which of the following floppy sizes exists?
(a) 5.25 inches (b) 4.75 inches (c) 6 inches (d) 8 inches
Ans (a)
75. MS-DOS is the name of a/an
(a) Application software (b) Hardware
(c) System software (d) None of these
Ans (c)
76. A peripheral device used in a word processing system is
(a) Floppy disk (b) Magnetic card reader
(c) CRT (d) All of these
Ans (d)
77. A term used interchangeably with diskette is
(a) Disk cartridge (b) Disk pack
(c) Floppy disk (d) Packette disk
Ans (c)
78. An I/O device which provides photographic outputs for printing galleys, is the
(a) Camera printer (b) Automatic typesetter
(c) Radix printer (d) All of these
Ans (d)
79. Which one of the following a file?
(a) Floppy disk (b) Magnetic drum (c) magnetic tape (d) None of these
Ans (d)
80.A decimal equivalent of m second is
(a) 0.000001 sec (b) 1000000 sec (c) 0.001 sec (d) 1000 sec
Ans (a)
81. A characteristic of the ASCII code is
(a) its limitation to a maximum of 96 character configuration
(b) its use of the zone codes 1010, 1011 and 1100
(c) its independence from Hollerith code
(d) All of these
Ans (c)
82. A temporary storage area, attached to the CPU, for I/O operations, is a
(a) Channel (b) Buffer (c) Register (d) Core
Ans (b)
83. The computer code for interchange of information between terminals is
(a) ASCII (b) BCD (c) BCDIC (d) Hollerith
Ans (a)
84. ROM is composed of
(a) Magnetic cores (b) Micro-processors
(c) Photoelectric cells (d) Floppy disks
Ans (b)
85. Which of the following is true?
(a) Plotters are not available for microcomputer systems
(b) Micro-computer are not programmed like conventional computers
(c) Mini-computers are task-oriented
(d) The contents of ROM are easily changed
Ans (c)
86. Magnetic disk a medium known as
(a) Serial access (b) Direct access (c) Sequential access (d) Sequential and rotational access
Ans (b)
87. A dot-matrix printer
(a) is an input-output device (b) is an output device only
(c) is an input device only (d) None of these
Ans (b)
88.An octal number 237 is equal to the binary number
(a) 010 011 111 (b) 010 111 011
(c) 011 101 101 (d) 011 000 001
Ans (c)
89. A term associated with the comparison of processing speed is
(a) FFTS (b) MPG (c) MIPS (d) CPS
Ans (c)
90. The maximum size of a memory addressed by 12 bits is
(a) 1 K bytes (b) 16 K bytes (c) 32 K bytes (d) 4 K bytes
Ans (d)

91. A program that can copy itself and infect a computer without the permission or knowledge of the owner is called what?
1. Floppy
2. Virus
3. Java
4. Monitor
Answer: B
92. Which of these is a correct format of IP address?
1. 192.168.1.1
2. 192.168.111.1111
3. 192.168.900.1
4. 192.900.168.1
Answer: A
93. Which was the first web browser?
1. WorldWideWeb
2. Netscape Navigator
3. Internet Explorer
4. Safari
Answer: A. Introduced on 26th February 1991 by British scientist Sir Tim Berners-Lee, WorldWideWeb ran on the NeXTSTEP platform. It was later renamed Nexus to avoid confusion with the World Wide Web.
94. It is a small piece of text stored on a user's computer by a web browser for maintaining the state. What we are talking about?
1. Application
2. Session
3. Cookie
4. QueryString
Answer: C
95. Which of these is a correct format of Email address?
1. contact.website.info
2. contactwebsite.info
3. contact@website.info
4. contact@website@info
Answer: C
96. What does HTTP stands for?
1. Hypertext Transfer Protocol
2. Hypertext Transfer Plotter
3. Head Tail Transfer Plot
4. Head Tail Transfer Protocol
Answer: A
97. In computers ,what is the smallest and basic unit of information storage?
1. Bit
2. Byte
3. Newton
4. Mega byte
Answer: A
98. Which company is nicknamed "Big Blue"?
1. TCS
2. IBM
3. Microsoft
4. Satyam
Answer: C
99. What is JVM?
1. Jumber Verbose Mechanics
2. A part of IIS
3. Java Virtual Machine
4. .Net Framework
Answer: C
100. What is Windows XP?
1. Operating System
2. Storage Device
3. Processor
4. Output Device
Answer: A
 
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