MCQOPTIONS
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MCQOPTIONS
This section includes 223 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Science knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
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. | submultiple of the access time |
| Answer» C. shorter than the access time | |
| 102. |
Fifth generation computers are likely to exhibit |
| A. | artificial intelligence |
| B. | heuristic behaviour |
| C. | advanced parallel processing |
| D. | All of the above |
| Answer» E. | |
| 103. |
Who is credited with the idea of using punch cards to control patterns in a weaving machine? |
| A. | Pascal |
| B. | Hollerith |
| C. | Babbage |
| D. | jacquard |
| Answer» E. | |
| 104. |
RAM is used as a short memory because it is |
| A. | Volatile |
| B. | Has small capacity |
| C. | Is very expensive |
| D. | Is programmable |
| Answer» B. Has small capacity | |
| 105. |
A high quality CAD system uses the following for printing drawing and graphs |
| A. | Dot matrix printer |
| B. | Digital plotter |
| C. | Line printer |
| D. | All of the above |
| Answer» C. Line printer | |
| 106. |
The register which holds the address of the location to or from which data are to be transferred is known as |
| A. | index register |
| B. | instruction register |
| C. | memory address register |
| D. | memory data register |
| Answer» D. memory data register | |
| 107. |
The ALU and control unit of most of the microcomputers are combined and manufactured on a single silicon chip. What is it called? |
| A. | Monochip |
| B. | Microprocessor |
| C. | ALU |
| D. | Control Unit |
| Answer» C. ALU | |
| 108. |
A device for converting handwritten impressions into coded characters & positional coordinates for input to a computer is |
| A. | Touch panel |
| B. | Mouse |
| C. | Wand |
| D. | Writing tablet |
| Answer» E. | |
| 109. |
Which of the following is true concerning personal computers? |
| A. | They decrease the demand for mainframe computers |
| B. | They have been most successful in the home |
| C. | The electronic spreadsheet has been a primary reason for their popularity |
| D. | Their future is not so bright owning to the improved cost-performance ratio of minis and mainframes |
| Answer» D. Their future is not so bright owning to the improved cost-performance ratio of minis and mainframes | |
| 110. |
Which of the following are likely to jam the read/write head of a disk pack? |
| A. | Dust |
| B. | Smoke particle |
| C. | Finger print smudge |
| D. | All of the above |
| Answer» E. | |
| 111. |
Which is a unit representing the no bits of discrete. |
| A. | Baud |
| B. | Byte |
| C. | Bit |
| D. | All of the above |
| Answer» B. Byte | |
| 112. |
In simplex transmission |
| A. | Data format is simple |
| B. | Data transmission is one way |
| C. | Data can be transmitted to small distances only |
| D. | All of the above |
| Answer» C. Data can be transmitted to small distances only | |
| 113. |
A hybrid computer uses a _____ to convert digital signals from a computer into analog signals. |
| A. | Modulator |
| B. | Demodulator |
| C. | Modem |
| D. | Decoder |
| Answer» D. Decoder | |
| 114. |
The bubbles in a bubble memory pack are created with the help of? |
| A. | Laser beam |
| B. | Magnetic field |
| C. | Electric field |
| D. | X-ray |
| Answer» C. Electric field | |
| 115. |
The function of CPU is |
| A. | to provide a hard copy |
| B. | to read, interpret and process the information and instruction |
| C. | to communicate with the operator |
| D. | to provide external storage of text |
| Answer» C. to communicate with the operator | |
| 116. |
Which of the following are the two main components of the CPU? |
| A. | control unit and registers |
| B. | registers and main memory |
| C. | control unit and ALU |
| D. | ALU and bus |
| Answer» D. ALU and bus | |
| 117. |
Programs designed to perform specific tasks is called known as |
| A. | System software |
| B. | Application software |
| C. | Utility programs |
| D. | Operating system |
| Answer» C. Utility programs | |
| 118. |
A path by which communication is achieved between a central processor and other devices is called |
| A. | Audit trail |
| B. | Network |
| C. | Bus |
| D. | Channel |
| Answer» D. Channel | |
| 119. |
The ALU of a computer responds to the commands coming from |
| A. | primary memory |
| B. | control section |
| C. | external memory |
| D. | cache memory |
| Answer» C. external memory | |
| 120. |
A connection between two end points, either physical or logical, over which data may travel in both directions simultaneously is called _____ |
| A. | Dump point |
| B. | Datalink |
| C. | Duplex |
| D. | Networks |
| Answer» D. Networks | |
| 121. |
A computer program consists of |
| A. | System flowchart |
| B. | Program flowchart |
| C. | Algorithms written in computer's language |
| D. | Discrete logical steps. |
| Answer» D. Discrete logical steps. | |
| 122. |
What was the name of the first commercially available micro¬processor chip? |
| A. | Intel 8008 |
| B. | Intel 8080 |
| C. | Intel 4004 |
| D. | Motorola 6809 |
| Answer» D. Motorola 6809 | |
| 123. |
The memory which is ultraviolet light erasable and electrically programmable is |
| A. | ROM |
| B. | PROM |
| C. | RAM |
| D. | EPROM |
| Answer» E. | |
| 124. |
Communication ports are found on the back of microcomputers. They are used to connect the computer to _____ |
| A. | printers |
| B. | modems |
| C. | other hardware |
| D. | All of the above |
| Answer» E. | |
| 125. |
A number which is stored and processed but not in the standard exponential form is called |
| A. | Floating point number |
| B. | Fixed point number |
| C. | Octal number |
| D. | Decimal number |
| Answer» C. Octal number | |
| 126. |
Which one of the following is termed a combination input-output device? |
| A. | VDT |
| B. | Keyboard |
| C. | Printer |
| D. | Laser Jet |
| Answer» B. Keyboard | |
| 127. |
Which of the following is not true of immediate processing? |
| A. | It is often used in real-time applications |
| B. | It can occur with either sequential of direct-access files |
| C. | It can be used in an airline-reservation system |
| D. | Transactions are processed shortly after a real-world event occurs |
| Answer» C. It can be used in an airline-reservation system | |
| 128. |
In magnetic disks, data is organized on the platter in a concentric sets of rings called |
| A. | sector |
| B. | track |
| C. | head |
| D. | block |
| Answer» C. head | |
| 129. |
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. | Micro computer |
| Answer» B. Mini computer | |
| 130. |
Front-end processor is a _____ designed specifically to handle the communications processing task. |
| A. | ALU |
| B. | Control unit |
| C. | CPU |
| D. | Register |
| Answer» D. Register | |
| 131. |
Which memory system is not as a mass memory medium? |
| A. | semiconductor memory |
| B. | magnetic tape |
| C. | magnetic disk |
| D. | magnetic drum |
| Answer» B. magnetic tape | |
| 132. |
What is the name of the computer which was first used for programming and playing of music? |
| A. | ELLIAC |
| B. | ENIAC |
| C. | UNIVAC |
| D. | All of the above |
| Answer» B. ENIAC | |
| 133. |
The control unit of a microprocessor |
| A. | stores data in the memory |
| B. | accepts input data from a keyboard |
| C. | Performs arithmetic / logic / functions |
| D. | All of the above |
| Answer» E. | |
| 134. |
The organization and interconnection of the various components of a computer system is |
| A. | Architecture |
| B. | Networks |
| C. | Graphics |
| D. | Designing |
| Answer» B. Networks | |
| 135. |
General purpose computers are those that can be adopted to countless uses simply by changing its |
| A. | keyboard |
| B. | printer |
| C. | program |
| D. | display screen |
| Answer» D. display screen | |
| 136. |
Which of the following is not used for storage purposes with main frame computers? |
| A. | removable disks |
| B. | fixed disks |
| C. | mass storage systems |
| D. | diskettes |
| Answer» E. | |
| 137. |
A type of line printer that uses an embossed steel band to form the letters printed on the paper is |
| A. | Golf ball printer |
| B. | Dot-matrix printer |
| C. | Laser printer |
| D. | Band printer |
| Answer» E. | |
| 138. |
The first machine to successfully perform a long series of arithmetic and logical operations was: |
| A. | ENIAC |
| B. | Mark I |
| C. | Analytic engine |
| D. | UNIVAC-I |
| Answer» C. Analytic engine | |
| 139. |
A device designed to read information encoded into a small plastic card is |
| A. | Magnetic tape |
| B. | Badge reader |
| C. | Tape puncher |
| D. | Card puncher |
| Answer» C. Tape puncher | |
| 140. |
Computer instructions written with the use of English words instead of binary machine code is called |
| A. | Mnemonics |
| B. | Symbolic code |
| C. | Gray code |
| D. | Op-code |
| Answer» C. Gray code | |
| 141. |
In comparison to the internal (main) memory, tape or disk memory is |
| A. | slower and more expensive |
| B. | slower and less expensive |
| C. | faster and more expensive |
| D. | faster and less expensive |
| Answer» C. faster and more expensive | |
| 142. |
When a disk stack is serviced by a comb-like access mechanism, there is one read/write head for each |
| A. | disk |
| B. | disk surface |
| C. | track |
| D. | cylinder |
| Answer» C. track | |
| 143. |
Symbolic languages were developed in |
| A. | 1962 |
| B. | 1950 |
| C. | 1974 |
| D. | 1980 |
| Answer» C. 1974 | |
| 144. |
A pen shaped device which can sense light, and is used to point at spots on a video screen. |
| A. | Mouse |
| B. | Light pen |
| C. | Joystick |
| D. | Plotter |
| Answer» C. Joystick | |
| 145. |
In analog computer |
| A. | Input is first converted to digital form |
| B. | Input is never converted to digital form |
| C. | Output is displayed in digital form |
| D. | All of the above |
| Answer» C. Output is displayed in digital form | |
| 146. |
When was Apple Macintosh II microcomputer introduced in the market? |
| A. | 1964 |
| B. | 1970 |
| C. | 1983 |
| D. | 1986 |
| Answer» D. 1986 | |
| 147. |
What is the name given to the 8-bit unit used for coding data? |
| A. | block of characters |
| B. | byte |
| C. | word |
| D. | K |
| Answer» C. word | |
| 148. |
The first firm to mass-market a microcomputer as a personal computer was |
| A. | IBM |
| B. | Sperry Univac |
| C. | Radio Shack |
| D. | Data General Corporation |
| Answer» D. Data General Corporation | |
| 149. |
One byte can be used to encode any integer between 'O' and -inclusive |
| A. | 16 |
| B. | 256 |
| C. | 128 |
| D. | 255 |
| Answer» E. | |
| 150. |
What is the name given to the weapons which use computerised guidance system? |
| A. | Guided weapons |
| B. | Smart weapons |
| C. | Dumb weapons |
| D. | Starwars weapons |
| Answer» C. Dumb weapons | |