300 + PPSC Lecturer computer science mcqs with answers – Notes

Computer Fundamental MCQs, Computer MCQs , MS Office, MS Excel, MS Word, MCQ on Internet, MCQ Quiz KPPSc MCQs, MCQ of Computer Science, NTS GAT, Computer has become most demand able thing in any work. Almost all departments have computer need. And it every important to know the basic Knowledge of computer. If you want to get job or admission related to computer, you must prepare online for computer science MCQ’S questions and answers. Most of the test conductors like FPSC, NTS, KPPSC, PPSC and others, are adding computer knowledge MCQs in their test patron. Having a good command on the computer is very necessary. Here are some MCQs related to the Computer from basic to advance will help our readers to secure high marks in the computer portion of the test.

PPSC computer science mcqs with answers – Notes

1. Computer Notes for Lecturer
2. Who is called as Father of Computers? Charles Babbage
3. The first Digital Computer introduced, was named as?Mark-I
4. How many generations, computer can be classified? 5
5. First Generation Computers contain? Vacuum Tubes
6. II Generation Computers are made of? Transistors
7. IV Generation Computers contain? LSI
8. Vth Generation Computers are based on? Artificial Intelligence
9. Computers, combine both measuring and counting, are called? Hybrid
10. In world today, most of the computers are? Digital
11. In any computer installation, how many elements consist? 3
12. Physical structure of computer is called? Hardware
13. CPU stands for? Central Processing Unit
14. In which type of computer, data are represented as discrete signals? Digital computer
15. Which of the following is available in the form of a PC now? Microcomputer
16. PARAM is an example of? Super computer
17. Who developed the analytical engine? Charles Babbage
18. GUI stands for? Graphical User Interface
19. The time taken by CPU to retrieve and interpret the instruction to be executed is calledas? Instruction cycle
20. Which of the following is responsible for all types of calculations? ALU
21. Which of the following is permanent memory? ROM
22. The metal or plastic case that holds all the physical parts of the computer is the? System Unit
23. CD-ROM stands for? Compact Disk Read Only Memory
24. ALU Stand for? Arithmetic Logic Unit
25. VGA Stand for? Video Graphics Array
26. IBM 1401 is? Second Generation Computer
27. MSI stands for? Medium Scale Integrated Circuits
28. WAN stands for? Wide Area Network
29. MICR stands for? Magnetic Ink Character Reader
30. One byte consists of? eight bits
31. EEPROM stand for? Electrically Erasable Programmable Read Only Memory
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33. Which of the following is a way to access secondary memory? Random access memory
34. UNIVAC Stand for?Universal Automatic Computer
35. The brain of any computer system is? CPU
36. To rage capacity of magnetic disk depends on? disk pack in disk surface
37. The two kinds of main memory are? ROM and RAM
38. A storage area used to store data to a Compensate for the difference in speed at which the different units can handle data is? Buffer
39. Computer is free from tiresome and boardroom. We call it? Diligence
40. Which type of computers uses the 8-bit code called EBCDIC? Mainframe computers
41. The ALU of a computer responds to the commands coming from? Control section
42. Chief component of first generation computer was? Vacuum Tubes and Valves
43. To produce high quality graphics (hardcopy) in color, you would want to use a/n? Plotter
44. One millisecond is? 1000th of a seconds
45. The output quality of a printer is measured by? Dot per inch
46. Which of the following was a special purpose computer? ABC
47. Which of the following storage devices can store maximum amount of data? Hard Disk
48. Which computer was considered the first electronic computer until 1973 when court invalidated the patent? ENIAC
49. A physical connection between the microprocessor memory and other parts of the microcomputer is known as? Address bus
50. High density double sided floppy disks could store of data? 44 MB
51. A high quality CAD system uses the following for printing drawing and graphs? Digital plotter
52. The accuracy of the floating-point numbers representable in two 16-bit words of a computer is approximately? 16 digits
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54. In most of the IBM PCs, the CPU, the device drivers, memory, expansion slots and active components are mounted on a single board. What is the name of the board? Motherboard
55. A technique used by codes to convert an analog signal into a digital bit stream is known as? Pulse code modulation
56. Regarding a VDU, Which statement is more correct? It is a peripheral device
57. A modern electronic computer is a machine that is meant for? Input, storage, manipulation and outputting of data
58. When was vacuum tube invented? 1906
59. Computer with 80286 Microprocessor is? AT computers
60. The digital computer was developed primarily in? USA
61. Software in computer? Enhances the capabilities of the hardware machine
62. The arranging of data in a logical sequence is called?Sorting
63. What is the responsibility of the logical unit in the CPU of a computer? To compare numbers
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65. Abacus was the first ? mechanical calculator
66. If in a computer, 16 bits are used to specify address in a RAM, the number of addresses will be? 65,536
67. Instructions and memory address are represented by? Binary codes
68. The terminal device that functions as a cash register, computer terminal, and OCR reader is the? POS terminal
69. A set of flip flops integrated together is called? Register
70. Which is used for manufacturing chips? Semiconductors
71. The first computer introduced in Nepal was? IBM 1401
72. Mnemonic a memory trick is used in which of the following language? Assembly language
73. A register organized to allow to move left or right operations is called ?Shift register
74. Which was the most popular first generation computer? IBM 650
75. A set of information that defines the status of resources allocated to a process is? Process description
76. Each set of Napier’s bones consisted of rods? 11
77. BCD Stand for? Binary Coded Decimal
78. When was the world’s first laptop computer introduced in the market and by whom? Epson, 1981
79. From which generation operating systems were developed? Third generation
80. The first firm to mass-market a microcomputer as a personal computer was? Radio Shak
81. How many address lines are needed to address each machine location in a 2048 x 4 memory chip? 11
82. Properly arranged data is called? Information
83. John Napier invented Logarithm in? 1614
84. An integrated circuit is? Fabricated on a tiny silicon chip
85. 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? Bus arbitration
86. Whereas a computer mouse moves over the table surface, the trackball is? Stationary
87. Which of the following is used as a primary storage device? Magnetic drum
88. Multi user systems provided cost savings for small business because they use a single processing unit to link several? Dumb terminals
89. The word processing task associated with changing the appearance of a document is? Formatting
90. When was Pascale invented? 1642
91. What is required when more than one person uses a central computer at the same time? Terminal
92. The term gigabyte refers to? 1024 megabytes
93. in which year was UK’s premier computing event started? 1980
94. What is the date when Babbage conceived Analytical engine? 1837
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96. What was the expected feature of fifth generation computers when Japan started FGCS? Parallel Processing
97. Which of the following memory medium is not used as main memory system? Magnetic tape
98. Computer operators? operate the device which input and output data from the computer
99. Computers are also called personal computers? Micro Computers
100. Which of the following is machine independence program? High level language
101. When was the first electro-mechanical computer developed? 1944
102. Analog computer works on the supply of? Continuous electrical pulses
103. The BIOS is the abbreviation of ?Basic Input Output System
104. Most of the first generation computers were? Special purpose computers
105. The output quality of a printer is measured by? Dot per sq. inch
106. On a PC, how much memory is available to application software? 640 KB
107. In a Computer is capable to store single binary bit? Flip flop
108. What does DMA stand for? Direct Memory Access
109. Operating system, editors, and debuggers comes under? System Software
110. What is the name of the display feature that highlights are of the screen which requires operator attention? Reverse video
111. Which is the largest computer? Mainframe Computer
112. The personal computer industry was started by?IBM
113. What is meant by a dedicated computer? Which is assigned one and only one task
114. Registers, which are partially visible to users and used to hold conditional, are known as? General purpose register
115. Registers which are partially visible to users and used to hold conditional codes (bits set by the CPU hardware as the result of operations), are known as? Flags
116. An approach that permits the computer to work on several programs instead of one is? Over lapped processing
117. Who suggested Stored Program Concept? John Neumann
118. The central processing unit (CPU) consists of? Control unit, arithmetic-logic unit and primary storage
119. The notable features like keyboards, monitors, GUI were developed in? Third generation
120. Who is credited with the idea of using punch cards to control patterns in a waving machine? Jacquard
121. What is an interpreter? An interpreter is the representation of the system being designed
122. RJ45 UTP cable has Cables? 4 pair
123. Which of the following is not a valid size of a Floppy Disk? 5 ½
124. The earliest calculating devices are? Abacus
125. Word length of a Personal Computer is? 8 bits
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127. A directly accessible appointment calendar is feature of a resident package? Memory
128. Which unit converts computer data into human readable form? Output unit
129. What produces useful information out of data? Processing
130. Which of the following device was not invented by Babbage? Pascale
131. A digital computer did not score over an analog computer in terms of?Accuracy
132. Which number system is usually followed in a typical 32-bit computer? Binary
133. A computer has very low failure rate because it uses electronic components. It produces very consistent results. This is highlighted by which of the feature of computer? Reliability
134. A paper printout of a document is known as? Hardcopy output
135. Which part of the computer is used for calculating and comparing? ALU
136. ABC Stand for? Special purpose computer
137. The computer code for the interchange of information between terminals is? ASCII
138. When was the X window system born? 1984
139. What is the first stage in software development? System Analysis
140. Which of the following is valid statement? Data in itself is useless unless it is processed
141. EBCDIC stands for? Extended Binary Coded Decimal Interchange Code
142. Personnel who design, program, operates and maintains computer equipment refers to? People ware
143. IBM System/360 is? Mainframe Computer
144. Which of the following programming language started from second generation? Cobol
145. The translator program used in assembly language is called? Assembler
146. Which of the following memories allows simultaneous read and Write operations? RAM
147. EPROM can be used for? Erasing and reconstructing the contents of ROM
148. A 32 bit microprocessor has the word length equal to? 4 byte
149. The term GIGO is related to? Accuracy
150. Web cam is an? input unit device
151. Bit stands for? Binary digits
152. Which device can understand difference between data &programs? Microprocessor
153. Which of the following is a read only memory storage device? CD-ROM
154. Symbolic logic was discovered by? George Boole
155. An error in computer data is called? Bug
156. The instructions for starting the computer are house on? Read only memory chip
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158. 1 nibble equals to? 4 bits
159. Perforated paper used as input of output media is known as? paper tapes
160. Which American computer company is called Big Blue? IBM
161. It was in 2028 BS the was brought in to calculate census data? IBM 1401
162. Which unit holds data temporarily? Primary Memory Unit
163. The computer size was very large in? First Generation
164. A name or number used to identify storage location devices? An address
165. Which of the following is not computer language? Medium level language
166. Reading data is performed in magnetic disk by? Read/write lead
167. The term ‘computer’ is derived from? Latin language
168. To locate a data item for storage is? Fetch
169. Who used punched cards practically for the first time in the history of computers? Herman Hollerith
170. Hard disk is coated in both sides with? Magnetic metallic oxide
171. Which of the following term means to reckon? Put are
172. Computer professionals working in a computer Centre are? Human ware
173. The contents of information are stored in? Memory data register
174. Main storage is also called? Memory
175. Memory unit is one part of? Central Processing Unit
176. By programmable machine we mean? computers
177. Which of the following is a secondary memory device? Disk
178. The memory which is programmed at the time it is manufactured? PROM
179. Which of the following memories must be refreshed many times per second? Dynamic RAM
180. In mode, the communication channel is used in both directions at the same time? Full-duplex
181. Memory is made up of? Large number of cells
182. What is the path from which data flow in a computer system is known as? Bus
183. Which technology is more reliable? Electronic
184. Raw facts and figures about any particular topic are? data
185. A computer can solve more than one kind of problem. This is related to which of the following characteristics? Versatility
186. From which generation computers the printers were used? Second
187. How many symbols exist in Bardot code?32

1. An application program that helps the user to change any number and immediately see the result of that change is? Spreadsheet
2. What is the name of the new color laptop computer which is powered by a 386 processor at 33 MHz and is built by Epson? AX3/33
3. In analog computer? Input is never converted to digital form
4. When as the Company named IBM? 1924
5. Which of the following storage device can store the largest amount of data? Hard Disks
6. The octal equivalence of 111010 is? 72
7. What do you call a single point on a computer screen? Pixel
8. Mostly which of the following device is used to carry user files? Floppy Disk
9. An output device that uses words or messages recorded on a magnetic medium to produce audio response is? Voice response unit
10. Who developed a mechanical device in the 17th century that could add, Subtract, Multiple divide and find square roots? Leibniz
11. The first Macintosh computer was from? Fourth generation
12. Which of the following is internal memory? RAM
13. Floppy disks which are made from flexible plastic material are also called? Diskettes
14. The magnetic storage chip used to provide non-volatile direct access storage of data and that have no moving parts are known as? Magnetic bubble memory
15. A collection of related instructions organized for a common purpose is referred to as? Program
16. Computer instructions written with the use of English words instead of binary machine code is called? Symbolic code
17. Which language is directly understood by the computer without translation program? Machine language
18. Which of the following processors use RISC technology? Power PC
19. Which of the following machine was not invented by Charles Babbage? Tabulating Machine
20. How many numbers could ENIAC store in its internal memory? 20
21. The subject of cybernetics deals with the science of? Control and communication
22. Binary circuit elements have? Two stable state
23. The value of each bead in earth is? 1
24. Which of the following terms is the most closely related to main memory? Permanent
25. Which was the world’s first minicomputer and when was it introduced? PDP-I, 1958
26. A group of magnetic tapes, videos or terminals usually under the control of one master is? Surface
27. The word length of a computer is measured in?Bits
28. Which unit holds data permanently? Secondary storage unit
29. Computer system comprises of major units? input unit, output unit, central processing unit and storage unit
30. Magnetic tape can serve as? Secondary storage media
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32. Which company is the biggest player in the microprocessor industry? Intel
33. EBCDIC can code up to how many different characters? 256
34. Number crunchier is the informal name for? Super computer
35. RATS stand for? Regression Analysis Time Series
36. Which technology is used in Compact disks? Laser
37. The metal disks, which are permanently housed in, sealed and contamination free containers are called? Winchester disk
38. Intel Corporation produces chips for which computers? IBM PCs
39. The first microprocessor built by the Intel Corporation was called? 8080
40. The data recording format in most of the modern magnetic tape is? 8-bit EBCDIC
41. Who designed the first electronics Computer ? ENIAC/ C) J. P. Eckert and J. W. Muchly
42. Time during which a job is processed by the computer is? Execution time
43. Which unit converts user data into machine readable form? Input unit
44. Which unit is known as nerve center of computer? ALU
45. Access time is? seek time + latency time
46. Easily relocatable language is? Assembly language
47. Through which device the main components of the computer communicate with each other? System Bus
48. What type of device is computer keyboard? Input
49. Which is the limitation of high level language? Lower efficiency
50. The original ASCII code used bits of each byte, reserving that last bit for error checking? 7
51. A computer programmer? Does all the thinking for a computer
52. Fifth generation computer is also known as? Knowledge information processing system
53. A typical personal computer used for business purposes would have of RAM? 256
54. Model 5100 was in 1957? The first PC built by IBM
55. Which 8-bit chip was used in many of today’s TRS-80 computers? Z-80
56. Which of the following disk is fixed disk? Hard Disks
57. The word Abacus is derived from Abaxis a word from? Latin language
58. An online backing storage system capable of storing larger quantities of data is? Mass storage
59. A kind of serial dot-matrix printer that forms characters with magnetically-charged ink sprayed dots is called? Ink-jet printer
60. Which of the following is an example of fifth generation computer? PIM/m
61. The number of records contained within a block of data on magnetic tape is defined by the? Blocking factor
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63. Which of the following registers is loaded with the contents of the memory location pointed by the PC? Instruction register
64. MIS is designed to provide information needed for effective decision making by? Managers
65. Latency time is? Time to spin the needed data under head
66. Who built the first Mechanical Calculator? Blaise Pascal
67. Which of the following generation computers had expensive operation cost? First
68. An IBM system/38 represents the computer class of? Small-scale computer
69. Another word for a daisy wheel printer? Golf ball printer
70. Which computers are used as servers for any medium sized organizations? Mini Computers
71. Slide Rules was invented in? 1620
72. A normal CD-ROM usually can store up to data? 680 MB
73. The lower deck of an abacus is known as? earth
74. All modern Computers operate on? Data
75. Offline device is? A device which is not connected to CPU
76. What is the latest write-once optical storage media? CD-ROM disk
77. Which one of the following input device is user- programmable? VDT
78. Floppy disks typically in diameter? 3
79. Current SIMMs have either or connectors (pins)? 30 or 72
80. Dot-matrix is a type of? Printer
81. Programs are executed on the basis of a priority number in? Multiprogramming
82. When was Apple Macintosh II microcomputer introduced in the market? 1983
83. When was the world’s first laptop computer introduced in the market and by whom? Epson, 1981
84. Today’s computer giant IBM was earlier known by different name which was changed in 1924. What was that name? The Tabulator Ltd.
85. Who built the world’s first electronic calculator using telephone relays, light bulbs and batteries? George Stibitz
86. In which language is source program written? High level
87. A song being played on computer speaker is? soft output
88. What is the number of read-write heads in the drive for a 9-trac magnetic tape? 9
89. Charles Babbage was awarded by Royal Society for his? Difference Engine
90. A computer which CPU speed around 100 million instruction per second and with the word length of around 64 bits is known as? Super computer
91. Which of the following will happen when data is entered into a memory location? It will erase the previous content
92. Which device is used as the standard pointing device in a Graphical User Environment? Mouse
93. Pick the one that is used for logical operations or comparisons such as less than equal to or greater than? Arithmetic and Logic Unit
94. Which of the following is used only for data entry and storage, and never for processing? Dumb terminal
95. Basic is language? a procedural
96. Which of the following have the fastest access time? Semiconductor Memories
97. How many types of storage loops exists in magnetic bubble memory? 2
98. Daisy wheel printer is a type of? Impact printer
99. A number system that has eight different symbols to represent any quantity is known as? Octal
100. The two basic types of record access methods are? Sequential and random
101. One of a class of storage device devices that can access storage locations in any order is? DASD
102. In what respect human beings are superior to computers?  Intelligence
103. As compared to the secondary memory, the primary memory of a computer is? Fast
104. The language that the computer can understand and execute is called? Machine language
105. How was the generation of computer classified? by the device used in memory & processor
106. CAD stands for? Computer aided design
107. Which of the following memories has the shortest access times? Cache memory
108. .A small or intelligent device is so called because it contains within it a? Sensor
109. Who invented Analytical engine? Charles Babbage
110. CPU speed of a personal computer is? 100 KIPS
111. Circular division of disks to store and retrieve data is known as? tracks
112. The least significant bit of the binary number, which is equivalent to any odd decimal number, is? 0
113. The latest PC keyboards use a circuit that senses the movement by the change in its capacitance? Capacitance keyboard
114. The Stepped Reckoner was invented by? Gottfried Leibnitz
115. While inserting a diskette into the diskette drive of a PC, the diskette’s label side should face? Up
116. Most of the inexpensive personal computers do not have any disk or diskette drive. What is the name of such computes? Diskless computers
117. What is a light pen? Optical input device
118. When a key is pressed on the keyboard, which standard is used for converting the keystroke into the corresponding bits? ANSI
119. In order to play and hear sound on a computer, one needs? a sound card and speakers
120. For which of the following computers can’t be used? gathering data
121. Who invented punched cards? Joseph Jacquard
122. Which device is required for the Internet connection?Modem