Search This Blog

Wednesday, November 6, 2013

COMPUTER AWARENESS PRACTICE MCQs

1. A scanner converts the image that it sees into numeric digit before storing it in the computer. This conversion process is known as? 1. Modulation 
2. Digitization
3. Reverberation 

4. Contribution
5. Creation

2. __ recognition systems enables physically disable people to use computer? 
1. Scanner 

2. Ink jet printers
3. Speech recognition

4. Main frame comuter
5. None of these

3. Which among the following statements are true regarding the laser? 
1. The laser recreates the image on a negatively charged drum. Which will collect Ink that is positively charged to attract to the areas of the image.
2. A dot-matric printers creates, the characters it prints.
3. The capture image virtually & print
4. They determine the size of the objects 
5. All the above

4. The earliest calculating devices are ? 
1. Calculators 
2. Super computers
3. Abacus 

4. Minicomputers
5. Micro Computers

5. ___can scan typed documents, pictures, graphics or even handwriting into a computer?  
1. Launching Machine 
2. Modulating Machine
3. Optional Scanners 

4. Voice-recognition devices
5. None of these

6. Graphic display is made up of a series of dots called ____ whose pattern produces the images?
1. Trick cels 
2. Lead cells
3. Pixel 

4. Inkers 
5. Lines

7. The components of cathode Ray Tube (CRT) Display are? 
1. Electrongun 
2. Electron beam controlled by an electro magnetic field
3. A phosphor coated display screen
4. Only option 1 is correct 

5. All 1,2,3, are correct

8. CGA (Color Graphic Adapter), MDA (Monochrome Display Adapter), HGA (Herc-ules Graphic Adapter), EGA (Enhanced Graphic (Adapter) are examples of? 

1. CRT (Cathode Ray Tube)
2. Motor cycle 
3. Screens 
4. Drum printers 

5. All the above

9. _____ is determined by the number of pixels horizontally & vertically? 
1. Reverberation 
2. Recognition
3. Reconciliation 

4. Resolution
5. Reflection

10. The major advantage of LCD (Liquid Crystal display) is?
1. High energy consumption
2. Low energy consumption
3. No energy consumption 
4. Average energy consumption
5. None of these

11. _____ are most commonly used for large group presentations? 
1. Projection Displays 
2. Hard disk
3. Floppy disk 

4. CPU 
5. All the above

12. The main memory also known as the primary memory is a part of the CPU & is combination of both?
1. REN & RAMP 
2. RAM & ROM
3. Only RAM 4. Only ROM
5. Keyboard & Monitor

13. Which of the following statements are correct regarding RAM ? 
1. It is volatile in nature & can read & write data
2. The information is lost as soon as the System is shut down unless saved
3. It is used to store programs & data during the computers operation
4. It is a permanent data 
5. Only 1,2,3 are correct

14. Which of the following statements are true regarding ROM? 
1. It is read only memory 
2. It is non-volatile
3. It is used to store permanent programs 
4. It is main memory 

5. All the above

15. Access mode means?  
1. How easily they are accessible
2. How easily they are deniable
3. How easily they are convertible
4. How easily they are defensible
5. None of these

16.Access time means?  
1. The maximum time required to reach storage location
2. The average time required to reach a storage location & obtain its content
3. The time taken to destroy the elements
4. The average time required to delete the storage
5. None of these

17. Transfer rate can be defined as ? 
1. The number of characters or words that a device can transfer per second
2. The number of characters or words that a device cannot transfer
3. The time taken to transfer an employ
4. Only 3 is correct 

5. All the above

18.Cache memory is a part of ?
1. CPU 
2. Monitor 
3. Key board 

4. Mouse 
5. All the above

19.____ lies in the path between the processor & the main memory? 
1. Cake memory 
2. Cache memory
3. Cane memory 

4. Cat memory
5. cathode memory


ANSWERS:
1. 2, 2. 3, 3. 1, 4. 3, 5. 3, 6. 3, 7. 5, 8. 1, 9. 4, 10. 2, 
11. 1, 12. 2, 13. 5, 14. 5, 15. 1,  16. 2, 17. 1, 18. 1, 19. 2

Sunday, November 3, 2013

COMPUTER AWARENESS PRACTICE QUESTIONS

1. A repository for data, usually covering some specific topic is called......
1) Data bank
2) Database
3) Data acquisition
4) Database system
5) Data Mart

2. A popular word processing program for microcomputers is........
1) BASEB
2) WORDSTAR
3) LOTUS
4) BASIC
5) FOX PRO

3. The first large commercial magnetic disk device was introduced in 1956 by....
1) IBM
2) Hewlett-Packard
3) Victor Poor
4) Digital Equipment Corporation
5) Honey-Well

4. The range of a char type is........
1) 0 to 65,536
2) 0 to 65,537
3) 0 to 65,636
4) 0 to 65,538
5) 0 to 128

5. The report card and merit list forms the....
1) Input data
2) Output data
3) Data processing
4) Central Processing
5) None

6. A common boundary between two systems is called.....
1) Surface
2) Intradiction
3) Interface
4) Interdiction
5) Port

7. Which of the following is directory controlled from a keyboard?
1) Punched paper tape
2) Card punch
3) Magnetic tape
4) Magnetic disk
5) Audio Tape

8. A device or peripheral equipment which is not in direct communication with CPU of a computer is known as.......
1) On line device
2) Off line device
3) Channel
4) Intelligent terminal
5) None

9. Pseudo instructions are .......
1) Introduction in any program that have no corresponding machine code instruction
2) Instructions that are partially executed
3) Instructions for caches
4) Assembler directives
5) None

10. The Hexa decimal number A 23 F is represented in binary by ?
1) 1010 0010 0011 1110
2) 1010 0010 0100 1111
3) 1010 0010 0011 1111
4) 1101 0010 0011 1111
5) None

11. UNI CODE is .......
1) 8 bit
2) 16 bit
3) 7 bit
4) 12 bit
5) 24 bit

12. Who is responsible for introducing the concept of stored program?
1) Blase Pascal
2) Herman Hollerth
3) Charles Babbage
4) John Von Neumann
5) Henry Ford

13. CRAY-II is a ......
1) Mini Computer
2) Micro Computer
3) Super Computer
4) First Mainframe Computer
5) None

14. In computer terminology the term wetware stands for ......
1) Artificial Intelligence
2) Any Organic Intelligence
3) Speech Recognition
4) Molecular scale computer
5) None

15. Who is the creator of PASCAL language?
1) Dijkstra
2) Niklaus writh
3) D. Khuth
4) Aho
5) Dennis Ritichie

16. The Index consists of ......
1) a list of Keys
2) Pointers to the master list
3) both (1) and (2)
4) Pointers to the duplicate list
5) None

17. A compound key ......
1) is made up a several pieces of information
2) uniquely identifies an item in list
3) both (1) and (2)
4) is a duplicate key
5) None

18. Updating a database means ......
1) revising a file structure
2) recognizing the data base
3) modifying or adding records
4) Deleting records
5) None

19. The distinguishable parts of a record are called......
1) Data
2) Files
3) Information
4) Fields
5) All of the above

20. A front end processor used in.......
1) Multi programming
2) Virtual Storage
3) Time sharing
4) Multi processing
5) None

21. Turnaround time is defined as ......
1) Delay between job submission and job completion
2) Waiting time
3) Execution tine
4) Both (1) and (2)
5) None

22. In OSI network architecture, the routing is performed by ......
1) Network layer
2) Session layer
3) Physical Layer
4) Transport layer
5) Data link layer

23. The slowest transmission speeds are of......
1) Twisted pair wire
2) Coaxial wire
3) OFC
4) Microwave
5) None

24. Transmission of computerised data from one location to another is called ......
1) Data transfer
2) Data flow
3) Data communication
4) Data management
5) None

25. The first electronic computer in the world was ......
1) UNIVAC
2) EDVAC
3) ENIAC
4) ABACUS
5) None

26. Which was the computer conceived by Babbage?
1) Analytical engine
2) Arithmetic machine
3) Donald Knuth
4) Abacus
5) None

27. Which of the following registers is used to keep track of address of the memory location where the next instruction is located?
1) Memory address register
2) Memory data register
3) Instruction register
4) Program counter
5) Memory buffer register

28. The subject of cybernetics deals with the science of ......
1) Genetics
2) Control and communications
3) Molecular biology
4) Biochemistry
5) Light

29. The memory which is programmed at the time it is manufactured ......
1) ROM
2) RAM
3) PROM
4) EPROM
5) Cache

30. Which command brings you to the first slide in your presentation?
1) Next slide button
2) Page up
3) Ctrl + Home
4) Ctrl + End
5) Ctrl + Back space

31. Which of the following is secondary memory
device?
1) CPU
2) ALU
3) Mouse
4) Floppy disk
5) None of these

32. A character is represented in EBCDIC by.....
1) One bit
2) Four bits
3) Eight bits
4) sixteen bits
5) None of the above

33. Which is considered a direct entry input device?
1) Optical scanner
2) Mouse
3) Light pen
4) Digitizer
5) All of the above

34. Micro computer hardware consists of three basic categories of physical equipment.....
1) System unit, input / output secondary storage
2) Keyboard, monitor, hardware
3) System unit, input / output, memory
4) System unit, primary storage, secondary storage
5) DC, Floppy, pen drive

35. e-marketing is same as ........
1) Virtual marketing
2) Digital Marketing
3) Real time marketing
4) All of these
5) None of these

36. Grouping and processing all of these firm's transactions at one time is called.......
1) Batch processing
2) DBMS
3) Red time processing
4) On-line processing
5) Transaction processing

37. A file that includes pre-defined settings thatcan be used to create many common types of presentations is called a ......
1) Template
2) Pattern
3) Model
4) Blueprint
5) None of these

ANSWERS:
1-1, 2-2, 3-1, 4-1, 5-2, 6-3, 7-2, 8-2, 9-4, 10-3
11-2, 12-4, 13-3, 14-2, 15-2, 16-3, 17-3, 18-3, 19-3, 20-3
21-1, 22-1, 23-1, 24-3, 25-3, 26-1, 27-4, 28-2, 29-1, 30-3
31-4, 32-3, 33-5, 34-2, 35-2, 36-1, 37-1