PPSC Computer Science Full Book test With Answers

PPSC Computer Science Full Book test

Sr. # Questions Answers Choice
1 ALU is Arithmetic Logic Unit Array Logic Unit Application Logic Unit None of above
2 CD-ROM stand for Compactable Read only memory Compact data Read only memory Compact Data read only memory Compact Disk Read only memory
3 UNIVAC is Universal Automatic computer Universal Array computer Uniue Atomic computer Unvalued Automatic computer
4 Which was the world's first minicomputer and when was it introduced. POP -1 1958 IBM System /36l, 1960 POP-II 1961 VAX 11/780 , 1962
5 In 1830 Charies Babbages designed a machine called the analytical engine which he showed at the parts exhibition in which year was it exhibited. 1820 1860 1855 1970
6 A digital computer did not score over an analog computer in terms of. Speed Accuracy Reliability Cost
7 The first firm to mass-market a microcomputer as a personal computer was IBM Super UNIVAC Radio Shaks Data general Corporation
8 An IBM system 38 represents the computer class of. Small scale computer Medium scale computer Large scale computer Super computer
9 In the third generation of computers Distributed data processing first became popular An operating system was first developed High level procedural language were first used Online real time system first become popular
10 The first machine to successfully perform a long series of arithmetic and locial operations was. ENIAC Mark -1 Analytic Engine UNIVAC -1
11 Most important advantage of an IC is its. Easy replacement in case of circuit failure Extremely high reliability Reduced cost Low powers consumption
12 An integrated circuit is. A complicated circuit An integrating device Much costlier than a single transistor Febricated on a tiny silicon chip
13 IBM7000 digital computer Belongs to second generation Uses VLSI Employs semi conductor memory Has modular constructions
14 Who developed a mechanical device in the 17th century that could add subtract multiple divided and find sure roots. Napiler Babbage Pascal Leibniz
15 Who built the world's first electronic calculator using telephone relays. light bulb and batteries. Claude Shannon Konrard Zues George stibits Howard H Aiken
16 The first microprocessor built by the inter corporation was called. 8008 8080 4004 8800
17 When was the world's first laptop computer introduced in the market and by whom. Hawieltt-Packard Epson 1981 Laplink traveling software in 1982 Tandy model 2000 ,1985
18 What are 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 control Bus arbitration Interrupts Status
19 The least significant bit of the binary number which is equivalent to any odd decimal number is. 0 1 1 or 0 3
20 One of the main feature that distinuish microprocessors from micro computers is. Words are usually larger in microprocessors Words are shorter in microprocessors Microprocessor does not contain 1/0 devices Exactly the same as the machine cycle time
21 Registers, which are partially visible to users and used to hold conditional are known as PC Memory address registers General purpose register Flags
22 Which of the following memory medium is not used as main memory system. Magnetic core Semiconductor magnetic tape Both a and b
23 The memory which is programmed at the time it is manufactured. POM RAM PROM EPROM
24 Which of the following memories must be refreshed many times per second. Static RAM Dynamic RAM EPROM ROM
25 Serial access memories are useful in application where Data consists of numbers Short access time is required Each stored word a processed diffrently Data naturally needs to flow in and out in a serial form
26 The number of records contained within a block of data on magnetic tape is defined by the Block definition Record contain clause Blocking factor Record per block factor
27 Daisy wheel printer is a type of. Matrix primer Impact printer Laser printer Manual printer
28 Plotter accuracy is measured in term of repeatability and Buffer size Resolution Vertical dimensions Intelligence
29 The accuracy of the floating point numbers representable in two 16 bit words of a computer is approximately 10 digits 6 digits 9 digits All of above
30 A dumb terminal has An embedded microprocessor Extensive memory Independent processing A keyboard and screen
Download This Set

Is this page helpful?