Computer Science Most Important Solved MCQs

Most important Solved MCQs for Computer Science

1. Who is called as Father of Computers?
Charles Babbage
2. Which of these is a standard interface for serial data transmission?
RS232C
3. Which type of topology is best suited for large businesses which must carefully control and coordinate the operation of distributed branch outlets?
Star topology
4. The first Digital Computer introduced, was named as?
Mark-I
5. How many generations, computer can be classified?
5
6. First Generation Computers contain?
Vacuum Tubes
7. II Generation Computers are made of?
Transistors
8. IV Generation Computers contain?
LSI
9. Vth Generation Computers are based on?
Artificial Intelligence
10. Computers, combine both measuring and counting, are called?
Hybrid
11. Which of the following transmission directions listed is not a legitimate channel?
Double Duplex
12. How many menus has a calculator in the windows
Three
13. Parity bits" are used for which of the following purposes?
To detect errors
14. In world today, most of the computers are?
Digital
15. In any computer installation, how many elements consist?
3
16. Physical structure of computer is called?
Hardware
17. CPU stands for?
Central Processing Unit
18. In which type of computer, data are represented as discrete signals?
Digital computer
19. Which of the following is available in the form of a PC now?
Microcomputer
20. PARAM is an example of?
Super computer
21. Who developed the analytical engine?
Charles Babbage
22. GUI stands for?
Graphical User Interface
23. The time taken by CPU to retrieve and interpret the instruction to be executed is calledas? Instruction cycle
24. Which of the following is responsible for all types of calculations?
ALU
25. Which of the following is permanent memory?
ROM
26. The metal or plastic case that holds all the physical parts of the computer is the?
System Unit
27. CD-ROM stands for?
Compact Disk Read Only Memory
28. ALU Stand for?
Arithmetic Logic Unit
29. VGA Stand for?
Video Graphics Array
30. The communication protocol that drives the internet and therefore most Lan’s use is called
SNA
31. The hardware parts are
Physical components
32. What kind of transmission medium is most appropriate to carry data in a computer network that is exposed to electrical interferences?
Optical fiber

33. The registers used for any mathematical and logical operations are
Accumulators registers
34. Dot-matrix is a type of
Printer
35. A combination of 4 bit is called
Nibble
36. A combination of 8 bit is called
Byte
37. IBM 1401 is?
Second Generation Computer
38. MSI stands for?
Medium Scale Integrated Circuits
39. WAN stands for?
Wide Area Network
40. MICR stands for?
Magnetic Ink Character Reader
41. One byte consists of?
eight bits
42. EEPROM stand for?
Electrically Erasable Programmable Read Only Memory
43. Which of the following is a way to access secondary memory?
Random access memory
44. UNIVAC Stand for?
Universal Automatic Computer
45. The brain of any computer system is?
CPU
46. To rage capacity of magnetic disk depends on?
disk pack in disk surface
47. The two kinds of main memory are?
ROM and RAM
48. 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
49. Computer is free from tiresome and boardroom. We call it?
Diligence
50. Which type of computers uses the 8-bit code called EBCDIC?
Mainframe computers
51. The ALU of a computer responds to the commands coming from?
Control section
52. Chief component of first generation computer was?
Vacuum Tubes and Valves
53. To produce high quality graphics (hardcopy) in color, you would want to use a/n?
Plotter
54. One millisecond is?
1000th of a seconds
55. The output quality of a printer is measured by?
Dot per inch
56. Which of the following was a special purpose computer?
ABC
57. Which of the following storage devices can store maximum amount of data?
Hard Disk
58. Which computer was considered the first electronic computer until 1973 when court invalidated the patent?
ENIAC
59. A physical connection between the microprocessor memory and other parts of the microcomputer is known as?
Address bus
60. Propagation of signals across a communication medium is called
Signaling
61. A collection of hyperlinked documents on the internet forms the ?
World Wide Web (WWW)
62. The location of a resource on the internet is given by its?
URL
63. The term HTTP stands for?
Hypertext transfer protocol
64. Which one of the following would breach the integrity of a system?
Full access rights for all users
65. Which software prevents the external access to a system?
Firewall
66. Which of the following best describes uploading information?
Sending information to a host computer
67. High density double sided floppy disks could store of data?
1.4 MB
68. A high quality CAD system uses the following for printing drawing and graphs?
Digital plotter
69. The accuracy of the floating-point numbers representable in two 16-bit words of a computer is approximately?
16 digits
70. 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
71. A technique used by codes to convert an analog signal into a digital bit stream is known as?
Pulse code modulation
72. Regarding a VDU, Which statement is more correct?
It is a peripheral device
73. A modern electronic computer is a machine that is meant for?
Input, storage, manipulation and outputting of data
74. When was vacuum tube invented?
1906
75. Computer with 80286 Microprocessor is?
AT computers
76. The digital computer was developed primarily in?
USA
77. Software in computer?
Enhances the capabilities of the hardware machine
78. The arranging of data in a logical sequence is called?
Sorting
79. What is the responsibility of the logical unit in the CPU of a computer?
To compare numbers

80. Abacus was the first ?
mechanical calculator
81. If in a computer, 16 bits are used to specify address in a RAM, the number of addresses will be?
65,536
82. Instructions and memory address are represented by?
inary codes
83. The terminal device that functions as a cash register, computer terminal, and OCR reader is the?
POS terminal
84. A set of flip flops integrated together is called?
Register
85. Which is used for manufacturing chips?
Semiconductors
86. The first computer introduced in Nepal was?
IBM 1401
87. Mnemonic a memory trick is used in which of the following language?
Assembly language
88. A register organized to allow to move left or right operations is called ?
Shift register
89. Which was the most popular first generation computer?
IBM 650
90. A set of information that defines the status of resources allocated to a process is?
Process description
91. Each set of Napier’s bones consisted of rods?
11
92. BCD Stand for?
Binary Coded Decimal
93. When was the world’s first laptop computer introduced in the market and by whom?
Epson, 1981
94. From which generation operating systems were developed?
Third generation
95. The first firm to mass-market a microcomputer as a personal computer was?
Radio Shak
96. How many address lines are needed to address each machine location in a 2048 x 4 memory chip?
 11
98. Properly arranged data is called?
Information
99. John Napier invented Logarithm in?
1614
100. How many times, the rate of the transfer of data on a USB port is faster than a parallel port device
10 to 20 times
101. In Microsoft Word, Ctrl+1 is used for which of the following
Single line spacing
102. Radio button offers a list of
Mutually exclusive options
103. Check Box offers a list of
Mutually inclusive Options
104. An integrated circuit is?
Fabricated on a tiny silicon chip
105. 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
106. Whereas a computer mouse moves over the table surface, the trackball is?
Stationary
107. Multi user systems provided cost savings for small business because they use a single processing unit to link several?
Dumb terminals
108. The word processing task associated with changing the appearance of a document is?
Formatting
109. When was Pascale invented?
1642
110. What is required when more than one person uses a central computer at the same time?
Terminal
111. The term gigabyte refers to?
1024 megabytes
112. in which year was UK’s premier computing event started?
1980
113. What is the date when Babbage conceived Analytical engine?
1837
114. What was the expected feature of fifth generation computers when Japan started FGCS?
 Parallel Processing
116. Computer operators?
operate the device which input and output data from the computer
117. Computers are also called personal computers?
Micro Computers
118. Which of the following is machine independence program?
High level language
119. When was the first electro-mechanical computer developed?
1944
120. Analog computer works on the supply of?
Continuous electrical pulses
121. The BIOS is the abbreviation of ?
Basic Input Output System
122. Most of the first generation computers were?
Special purpose computers
123. The output quality of a printer is measured by?
Dot per sq. inch
124. On a PC, how much memory is available to application software?
640 KB
125. In a Computer is capable to store single binary bit?
Flip flop
126. What does DMA stand for?
Direct Memory Access
127. Operating system, editors, and debuggers comes under?
System Software
128. What is the name of the display feature that highlights are of the screen which requires operator attention?
Reverse video
129. Which is the largest computer?
Mainframe Computer
130. The personal computer industry was started by?
IBM
131. What is meant by a dedicated computer?
Which is assigned one and only one task
132. Registers, which are partially visible to users and used to hold conditional, are known as?
General purpose register
133. 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
134. An approach that permits the computer to work on several programs instead of one is?
Over lapped processing
135. Who suggested Stored Program Concept?
John Neumann
136. The central processing unit (CPU) consists of?
Control unit, arithmetic-logic unit and primary storage
137. The notable features like keyboards, monitors, GUI were developed in?
Third generation
138. Who is credited with the idea of using punch cards to control patterns in a waving machine?
Jacquard
139. What is an interpreter?
An interpreter is the representation of the system being designed
140. RJ45 UTP cable has Cables?
4 pair
141. Which of the following is not a valid size of a Floppy Disk?
5 ½
142. The earliest calculating devices are?
Abacus
143. Word length of a Personal Computer is?
8 bits
144. A directly accessible appointment calendar is feature of a resident package?
Memory
145. Which unit converts computer data into human readable form?
Output unit
146. What produces useful information out of data?
Processing
147. Which of the following device was not invented by Babbage?
Pascale
148. A digital computer did not score over an analog computer in terms of?
Accuracy
149. Which number system is usually followed in a typical 32-bit computer?
Binary
150. 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
151. A paper printout of a document is known as?
Hardcopy output
152. Which part of the computer is used for calculating and comparing?
ALU
153. ABC Stand for?
Special purpose computer
154. The maximum length (in bytes) of an IPv4 datagram is?
65535
155. The speed of communications between any two devices on the Ethernet Lan is
10 Mbps to 100 Mbps
156. The IP network 192.168.50.0 is to be divided into 10 equal sized subnets. Which of the following subnet masks can be used for the above requirement?
255.255.255.0
157. When the mail server sends mail to other mail servers it becomes ___ ?
SMTP client
158. The computer code for the interchange of information between terminals is?
ASCII
159. When was the X window system born?
1984
160. What is the first stage in software development?
System Analysis
161. Which of the following is valid statement?
Data in itself is useless unless it is processed
162. EBCDIC stands for?
Extended Binary Coded Decimal Interchange Code
163. Personnel who design, program, operates and maintains computer equipment refers to?
People ware
164. IBM System/360 is?
Mainframe Computer
165. Which of the following color graphics display has the highest resolution
VGA
166. In order to open the view menu in the word menu bar which of the following shortcut key is used
Alt+W
167. Which of the following address belongs class A?
121.12.12.248

168. Which of the following IP addresses can be used as (a) loop-back addresses?
127.0.0.1

169. You can set the folder view option according to your settings through which of the following choice
Custom style

170. Which of the following shortcut key is used to close the program
Alt+F4
171. Which of the following have the fastest access time?
Semiconductor Memories
172. The term WAN stands for?
Wide Area Network
173. What IP address class allocates 8 bits for the host identification part?
Class C
174. The term IANA stands for?
Internet Assigned Numbers Authority
175. How many versions available of IP?
2 version
176. The term IPv4 stands for?
Internet Protocol Version 4
177. The term LAN stands for?
Local Area Network
178. What is a compiler?
Compiler scans the entire program and translates the whole of it into machine code at once
179. What is an interpreter?
Interpreter translates just one statement of the program at a time into machine code.
180. . Punched cards were first introduced by?
Jacquard.
181. Which of the through is share the data of two computer?
Network
182. Which of the following programming language started from second generation?
Cobol
183. The translator program used in assembly language is called?
Assembler
184. Which of the following memories allows simultaneous read and Write operations?
RAM
185. EPROM can be used for?
Erasing and reconstructing the contents of ROM
186. A 32 bit microprocessor has the word length equal to?
4 byte
187. The term GIGO is related to?
Accuracy
188. Web cam is an?
input unit device
189. Bit stands for?
Binary digits
190. Which device can understand difference between data &programs?
Microprocessor
191. Which of the following is a read only memory storage device?
CD-ROM
192. Symbolic logic was discovered by?
George Boole
193. An error in computer data is called?
Bug
194. The instructions for starting the computer are house on?
Read only memory chip

195. 1 nibble equals to?
4 bits
196. Perforated paper used as input of output media is known as?
paper tapes
197. Which American computer company is called Big Blue?
IBM
198. It was in 2028 BS the was brought in to calculate census data?
IBM 1401
199. Which unit holds data temporarily?
Primary Memory Unit
200. The computer size was very large in?
First Generation
201. A name or number used to identify storage location devices?
An address
202. Which of the following is not computer language?
Medium level language
203. Reading data is performed in magnetic disk by?
Read/write lead
204. The term ‘computer’ is derived from?
Latin language
205. To locate a data item for storage is?
Fetch
206. In specific, if the systems use separate protocols, which one of the following devices is used to link two systems?
Gateway
207. How many digits of the Data Network Identification Code (DNIC) identify the country?
first three
208. Which of the following methods is used to broadcast two packets on the medium at a time?
Collision
209. Word length of a Personal Computer is?
8 bits
210. Which of the following is true with regard to the ping command?
Ping summarizes the packet loss and round-trip delay between two IP end points.

211. In the cryptography, the sequence of the letters is rearranged by?
Transposition ciphers
212. Who used punched cards practically for the first time in the history of computers?
Herman Hollerith
213. Hard disk is coated in both sides with?
Magnetic metallic oxide
214. Which of the following term means to reckon?
Put are
215. Computer professionals working in a computer Centre are?
Human ware
216. The contents of information are stored in?
Memory data register
217. Main storage is also called?
Memory
218. Memory unit is one part of?
Central Processing Unit
219. By programmable machine we mean?
computers
220. Which of the following is a secondary memory device?
Disk
221. The memory which is programmed at the time it is manufactured?
ROM
222. Which of the following memories must be refreshed many times per second?
Dynamic RAM
223. In mode, the communication channel is used in both directions at the same time?
Full-duplex
224. Memory is made up of?
Large number of cells
225. What is the path from which data flow in a computer system is known as?
Bus
226. Which technology is more reliable?
Electronic
227. Raw facts and figures about any particular topic are?
data
228. A computer can solve more than one kind of problem. This is related to which of the following characteristics?
Versatility
229. Cursor is a?
Thin blinking line
230. We can Search character & word and symbols in Microsoft word by using _______ command?
Ctrl + F
231. In the context of Microsoft Word, there is a feature called ‘Gutter Margin’. What is this feature used for?
Give provision for better document binding
232. In which tab Hyphenation options are available?
Page Layout
233. Which device is required for the Internet connection?
Modem
234. What does DMA stand for?
Direct Memory Access
235. When did John Napier develop logarithm?
1614
236. Which short cut key is used to bring up the “Find and Replace” dialog box in Ms word?
CTRL+H
237. From which generation computers the printers were used?
second
238. How many symbols exist in Bardot code?
32

239. An application program that helps the user to change any number and immediately see the result of that change is?
Spreadsheet
240. 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
241. In analog computer?
Input is never converted to digital form
242. When as the Company named IBM?

1924
243. Which of the following storage device can store the largest amount of data?
Hard Disks
244. The octal equivalence of 111010 is?
72
245. What do you call a single point on a computer screen?
Pixel
246. Mostly which of the following device is used to carry user files?
Floppy Disk
247. An output device that uses words or messages recorded on a magnetic medium to produce audio response is?
Voice response unit
248. Who developed a mechanical device in the 17th century that could add, Subtract, Multiple divide and find square roots?
Leibniz
249. The first Macintosh computer was from?
Fourth generation
250. Which of the following is internal memory?
RAM
251. Floppy disks which are made from flexible plastic material are also called?
Diskettes
252. 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
253. Microsoft was founded in________?
1975
254. A “Ctrl + Enter” command will __________ ?
Create a new page
255. A normal CD-ROM usually can store up to data?
680 MB
256. The protect document option can be found in the _______ tab of the Ribbon ?
Review
257. ATM stands for?
Automatic Teller Machine
258. Which function you will use to add names and addresses of different recipient for each copy of the letter?
Mail Merge
259. Default Font Size In MS Office 2007 is__________?
11 ppt
260. The 2nd Generation Computer was based on?
Transistor
261. The 3rd Generation Computer was made with?
IC
262. He BIOS is the abbreviation of ?
Best Input Output System
263. What do u say a single point on a computer screen
Pixel
264. How was the generation of computer classified?
by the device used in memory & processor
265. A collection of related instructions organized for a common purpose is referred to as?
Program
266. Computer instructions written with the use of English words instead of binary machine code is called?
Symbolic code
267. Which language is directly understood by the computer without translation program?
Machine language
268. Which of the following processors use RISC technology?
Power PC
269. Which of the following machine was not invented by Charles Babbage?
Tabulating Machine
270. How many numbers could ENIAC store in its internal memory?
20
271. The subject of cybernetics deals with the science of?
Control and communication
272. Binary circuit elements have?
Two stable state
273. The value of each bead in earth is?
1
274. Which of the following terms is the most closely related to main memory?
Permanent
275. Which was the world’s first minicomputer and when was it introduced?
PDP-I, 1958
276. A group of magnetic tapes, videos or terminals usually under the control of one master is?
Surface
277. The word length of a computer is measured in?
Bits
278. Which unit holds data permanently?
Secondary storage unit
279. . From which device main component of the computer communicate with each other?
System Bus
280. Which is a volatile memory?
RAM
281. The digital signals can be represented by
0 and 1
282. Modulator-demodulator is a device that converts?
Digital signal into analog signal and Analog signal into digital signal
283. Computer system comprises of major units?
input unit, output unit, central processing unit and storage unit
284. Magnetic tape can serve as?
Secondary storage media
285. Which company is the biggest player in the microprocessor industry?
Intel
286. EBCDIC can code up to how many different characters?
256
287. Number crunchier is the informal name for?
Super computer
288. Which device is used to process data?
CPU
290. Who is known as the father of Computer Science?

Charles Babbage

292. In MS Word short cut key for Split a window or remove the split view?
Alt+Ctrl+S
293. Ms Word offers the different views of a document?
Five
294. RATS stand for?
Regression Analysis Time Series
295. Which technology is used in Compact disks?
Laser
296. The metal disks, which are permanently housed in, sealed and contamination free containers are called?
Winchester disk
297. Intel Corporation produces chips for which computers?
IBM PCs
298. The first microprocessor built by the Intel Corporation was called?
8080
299. The data recording format in most of the modern magnetic tape is?
8-bit EBCDIC
300. Who designed the first electronics Computer ?
ENIAC/ C) J. P. Eckert and J. W. Muchly
301. Time during which a job is processed by the computer is?
Execution time
302. Which unit converts user data into machine readable form?
Input unit
303. Which unit is known as nerve center of computer?
ALU
304. What is the capacity of a 3.5” Floppy Disk?
1.44MB
305. Floppy disks, sometimes called
flexible disks
306. What is the capacity of 5.25-inch diskette?
160Kb
307. Access time is?
seek time + latency time
308. Easily relocatable language is?
Assembly language
309. Through which device the main components of the computer communicate with each other?
System Bus
310. What type of device is computer keyboard?
Input
311. Which is the limitation of high level language?
Lower efficiency
312. The original ASCII code used bits of each byte, reserving that last bit for error checking?
7
313. A computer programmer?
Does all the thinking for a computer
314. Fifth generation computer is also known as?
Knowledge information processing system
315. A typical personal computer used for business purposes would have of RAM?
256
316. Model 5100 was in 1957?
The first PC built by IBM
317. Which 8-bit chip was used in many of today’s TRS-80 computers?
Z-80
318. Which of the following disk is fixed disk?
Hard Disks
319. The word Abacus is derived from Abaxis a word from?
Latin language
320. An online backing storage system capable of storing larger quantities of data is?
Mass storage
321. A kind of serial dot-matrix printer that forms characters with magnetically-charged ink sprayed dots is called?
Ink-jet printer
322. Which of the following is an example of fifth generation computer?
PIM/m
323. The number of records contained within a block of data on magnetic tape is defined by the?
Blocking factor
324. A Personal Computer (PC) is a _____ Computer?
Micro
325. What type of printers are Dot Matrix Printers?
Impact
326. By default your document print in_________mode?
Portrait
327. What is the full form of RAM?
Random Access Memory
328. VDU stands for?
Visual Display Unit
329. One kilobyte is approximately?
1000 bytes
330. DOS stands for?
Disk Operating System
331. WORD STAR is a popular?
Word processing program
332. WORD STAR was developed by
Micro pro Company
333. ALU stands for?
Arithmetic Logic Unit
334. In MS Word Ctrl+Shift+C is shortkey of:____________?
Copy Format Painter
335. The VDU and Keyboard together form a?
TERMINAL
336. The speed of the dot matrix printers is measured by CPS which stands for?
characters per second
337. The speed of the line printers is measured by LPM which stands for?
Lines per second
338. Which of the following registers is loaded with the contents of the memory location pointed by the PC?
Instruction register
339. MIS is designed to provide information needed for effective decision making by?
Managers
340. Latency time is?
Time to spin the needed data under head
341. Who built the first Mechanical Calculator?
Blaise Pascal
342. Which of the following generation computers had expensive operation cost?
First
343. An IBM system/38 represents the computer class of?
Small-scale computer
344. Another word for a daisy wheel printer?
Golf ball printer
345. Which computers are used as servers for any medium sized organizations?
Mini Computers
346. Slide Rules was invented in?
1620
347. A normal CD-ROM usually can store up to data?
680 MB
348. The lower deck of an abacus is known as?
earth
349. All modern Computers operate on?
Data
350. Offline device is?
A device which is not connected to CPU
351. What is the latest write-once optical storage media?
CD-ROM disk
352. Which one of the following input device is user- programmable?
VDT
353. Floppy disks typically in diameter?
3,8,5.25
354. Pressing the _____ key instructs Word to replace an AutoText entry name with the stored AutoText entry
F3
355. Current SIMMs have either or connectors (pins)?
30 or 72
356. Dot-matrix is a type of?
Printer
357. Programs are executed on the basis of a priority number in?
Multiprogramming
358. When was Apple Macintosh II microcomputer introduced in the market?
1983
359. When was the world’s first laptop computer introduced in the market and by whom?
Epson, 1981
360. Today’s computer giant IBM was earlier known by different name which was changed in 1924. What was that name?
The Tabulator Ltd.
361. Which simplifies the process of formatting text if the same formatting is required in more than one location?
Format Painter
362. DBMS stands for?
Database Management System
364. IBM is a famous computer company.IBM stands for?
International Business Machines Corporation
365. ROM stands for?
Read Only Memory
366. The programs run on the computer are commonly known as?
Software
367. Who built the world’s first electronic calculator using telephone relays, light bulbs and batteries?
George Stibitz
368. In which language is source program written?
High level
369. A song being played on computer speaker is?
soft output
370. What is the number of read-write heads in the drive for a 9-trac magnetic tape?
9
371. Charles Babbage was awarded by Royal Society for his?
Difference Engine
372. 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
373. All the output which is printed on paper is called?
Hard Copy
374. The number of pixels on a computer screen determines a screen’s?
Resolution
375. A processor’s speed is measured in?
Megahertz
376. CAM stands for?
Computer Aided Manufacturing
377. DTP stands for?
Desk Top Publishing
378. EPROM stands for?
Erasable and Programmable Read only Memory
379. A magnetic storage disk made out of a thin piece of plastic is called?
Floppy Disk
380. Which key is used to increase left indent in Ms Word?
Ctrl+M
381. When typing in a word field manually, what must you press to insert the code’s brackets?
Ctrl + F9
382. How can you make the selected character super-scripted in Ms Word?
Ctrl + Shift + =

383. Which of the following will happen when data is entered into a memory location?
It will erase the previous content
384. Which device is used as the standard pointing device in a Graphical User Environment?
Mouse
385. Pick the one that is used for logical operations or comparisons such as less than equal to or greater than?
Arithmetic and Logic Unit
386. Which of the following is used only for data entry and storage, and never for processing?
Dumb terminal
387. Basic is language?
A procedural language
388. Which of the following have the fastest access time?
Semiconductor Memories
389. How many types of storage loops exists in magnetic bubble memory?
2
390. Daisy wheel printer is a type of?
Impact printer
391. A number system that has eight different symbols to represent any quantity is known as?
Octal
392. The two basic types of record access methods are?
Sequential and random
393. One of a class of storage device devices that can access storage locations in any order is?
DASD
394. In what respect human beings are superior to computers?
Intelligence
395. As compared to the secondary memory, the primary memory of a computer is?
Fast
396. The language that the computer can understand and execute is called?
Machine language
397. How was the generation of computer classified?
by the device used in memory & processor
398. CAD stands for?
Computer aided design
399. Which of the following memories has the shortest access times?
Cache memory
400. A small or intelligent device is so called because it contains within it a?
Sensor
401. Who invented Analytical engine?
Charles Babbage
402. CPU speed of a personal computer is?
100 KIPS
403. Circular division of disks to store and retrieve data is known as?
tracks
404. The Stepped Reckoner was invented by?
Gottfried Leibnitz
405. While inserting a diskette into the diskette drive of a PC, the diskette’s label side should face?
Up
406. Most of the inexpensive personal computers do not have any disk or diskette drive. What is the name of such computes?
Diskless computers
407. What is a light pen?
Optical input device
408. When a key is pressed on the keyboard, which standard is used for converting the keystroke into the corresponding bits?
ANSI
409. In order to play and hear sound on a computer, one needs?
a sound card and speakers
410. For which of the following computers can’t be used?
gathering data
411. Who invented punched cards?
Joseph Jacquard
412. Which device is required for the Internet connection?
Modem
413. A pictorial representation of the step by step sequence for solving a problem is known as a?
Flow Chart
414. A measure of storage capacity equal to one thousand megabytes is one?
Gigabyte
415. A variable whose value is accessible throughout the program is called?
Global Variable
416. A printer which uses light to transfer the image to paper is the?
Laser Printer
417. Memory which retains all its contents even after the power is turned off is known as?
Non-Volatile Memory
418. Electronic mail is more popularly known as?
E-Mail
419. What does Ctrl + = key effect?
Subscript
420. How much space in minimum must be provided between columns?
0’’
421. PILOT stands for?
Programmed Inquiry Learning Or Teaching
422. PILOT was developed by?
Doug Engelbardt
423. IQL stands for?
Interactive Query Language
424. LOGO was developed by?
Dr.seymour Papert
425. LOGO is -------
Programming Language
426. CAL stands for?
Computer Assisted Learning
427. APT stands for?
Automatically Programmed Tooling

428. C language was invented by?
Dennis M.Ritchie

429. Terminals that have their own memory are called?
Smart terminals
430. The memory that needs electric power to sustain its contents is known as?
CMOS
431. MOS stands for?
Metallic Oxide Semiconductors

432. In the second generation computers,magnetic cores were used as?
Main Memory Devices

433. The file type ________ indicates the file is a Word document.
.docx

434. LCD stands for?
Liquid Crystal Display
435. The paragraph mark (¶) is a formatting mark that indicates where the ________ was pressed
Enter key
436. RADAR stands for?
Radio Detection and Ranging
437. RADAR works on the principle of?
Echo
438. Software-in-Hardware modules are called?
Firmware
439. Which of the following typically appear at the end of document for citation of source?
End notes

440. After doing a low-level format, what would be the next step in configuring the hard drive in a system?
Format DOS partition
441. A device by which any microcomputer can use ordinary television set for producing output is called?
RF modulator
442. What's the best way to protect your hard drive data?
Backup
443. EDSAC stands for?
Electronic Delayed Storage Automatic calculator
444. EDVAC stands for?
Electronic Discrete Variable Automatic Computer

445. EDSAC was developed in the year?
1949

446. A parity error usually indicates a problem with:
Memory
447. EDVAC was developed in the year?
1952

448. Which provides the fastest data access time?
RAM

449. ENIAC stands for?
Electronic Numerical Integrator and Computer
450. The buffers statement is found in what file?
Config.sys
451. The most successful computing device in the ancient time was?
Abacus

452. In the DOS memory model, the HIGH Memory Area (HMA). is the _____ memory.
Last 64k of conventional
453. Use of some mechanism for the operation of a machine is known as?
Automation
454. A modern means of communication in which the information is stored in a computer at a TV station is known as?
Teletext

455. How many MB of programs do system ROM chips store?
2MB
456. Global communication became possible by using?
Satellites
457. Morse code was invented by?
Samuel Morse
458. The code used in a teleprinter is the?
Baudot Code