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Home » Engineering » Computer Science » Aptitude Test - 45
1.Dot-matrix is a type of
A. Tape
B. Printer
C. Disk
D. Tape
2.Which kind of devices allows the user to add components and capabilities to a computer system?
A. System boards
B. Storage devices
C. Input devices
D. System boards
3.Where does a computer add and compare data?
A. Hard disk
B. Floppy disk
C. CPU chip
D. Hard disk
4.Which of the following require large computer memory?
A. Imaging
B. Graphics
C. Voice
D. Imaging
5.Which of the following are used to quickly accept, store, and transfer data and instructions that are being used immediately by the CPU?
A. microprocessors
B. registers
C. ROM chips
D. microprocessors
6.Which disk interface standard includes support for up to eight peripheral devices?
A. ST50G/412
B. IDE
C. SCSI
D. ST50G/412
7.Who designed the first general purpose electronic digital computer "ENIAC" ?
A. Van-Neumann
B. Joseph M Juoquard
C. J. Presper Ecket and John W Mauchly
D. Van-Neumann
8.What type of control pins are needed in a microprocessor to regulate traffic on the bus, in order to prevent two devices from trying to use it at the same time?
A. Bus control
B. Interrupts
C. Bus arbitration
D. Bus control
9.In synchronous transmission data from various users
A. Require header
B. Do not require header
C. Sometimes require header
D. Require header
10.General purpose computers are those that can be adopted to countless uses simply by changing its
A. keyboard
B. printer
C. program
D. keyboard
11.What is the name of the visible silver rectangle which separates the take-up portion of the magnetic tape from the data recording portion?
A. Load maker
B. Load marker
C. Tape separator
D. Load maker
12.A part located in the central processing unit that stores data & information is known as
A. Core memory
B. PROM
C. EPROM
D. Core memory
13.A software package to perform calculations on data arranged in an array is
A. System software
B. Utility programs
C. Electronic spread sheet
D. System software
14.What was the name of the first stored program electronic computer which was built in 1949 at Cambridge University in England?
A. EDVAC
B. EDSAC
C. UNIVAC
D. EDVAC
15.A computer with CPU speed around 100 million instructions per second & with the word length of around 64 bits is known as
A. Super computer
B. Mini computer
C. Micro computer
D. Super computer
16.An input device which can read characters directly from an ordinary piece of paper is
A. OCR
B. OMR
C. MSI
D. OCR
17.Which of the following is not a part of the CPU
A. storage unit
B. arithmetic and logic unit
C. program unit
D. storage unit
18.Which of the following chips can be reprogrammed with special electric pulses?
A. EPROM
B. PROM
C. ROM
D. EPROM
19.In this world of fast changing computer technology, one of the most important factor to be considered while purchasing a PC is, it should have a provision for
A. high level integration
B. self upgradability
C. intelligent sensors
D. high level integration
20.A collection of eight bits is called
A. Byte
B. Word
C. Record
D. Byte
21.The ALU of a central processing unit does the essential maths work for the computer. What does the control unit do?
A. Communicates its results
B. Activates the output device
C. Monitors the flow of information
D. Communicates its results
22.Which of the following storage and retrieval methods would be well suited to your processing requirements if you only need to retrieve records one at a time and there is no fixed pattern to the requests for data and records?
A. indexed sectors
B. sequential
C. direct
D. indexed sectors
23.In MODEMS
A. Several digital signals are multiplexed
B. A digital signal changes some characteristic of a carrier wave
C. Digital signal is amplified
D. Several digital signals are multiplexed
24.Which is a secondary memory device?
A. CPU
B. ALU
C. Floppy disk
D. CPU
25.A storage device which is used to store data & information external to the main storage is known as
A. Buffer
B. Backing storage
C. PROM
D. Buffer
26.In a PC, how much memory is available to application software?
A. 1024 KB
B. 760 KB
C. 640 KB
D. 1024 KB
27.For a memory system, the cycle time is
A. same as the access time
B. longer than the access time
C. shorter than the access time
D. same as the access time
28.The number of records contained within a block of data on magnetic tape is defined by the
A. block definition
B. record contain clause
C. blocking factor
D. block definition
29.The binary equivalent of the Octal number 13.54 is
A. 1011.1011
B. 1101.111
C. 1001.111
D. 1011.1011
30.What process prepares the magnetic surface of a disk by creating concentric circles, called tracks, around the disk? (Each track is further divided into pic-shaped sections called sectors.)
A. Tracking
B. Formatting
C. Copying
D. Tracking
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