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State bank of India SBI computer-professional knowledge questions with answers,SBI free solved sample placement papers of professional knowledge questions with answers,SBI Aptitude,Reasoning English questions with answers
1. UNIVAC is
a. Universal Automatic Computer
b. Universal Array Computer
c. Unique Automatic Computer
d. Unvalued Automatic Computer
a. Universal Automatic Computer
Explanation: There are no computers with the name as in other options. UNIVAC was the first general purpose electronic digital computer designed for commercial use, produced by Universal Accounting Company of John
Mauchly and J.P.Eckert in 1951.
2. CD-ROM stands for
a. Compactable Read Only Memory
b. Compact Data Read Only Memory
c. Compactable Disk Read Only Memory
d. Compact Disk Read Only Memory
Correct Answer: d. Compact Disk Read Only Memory
Explanation: There are no objects with the name as in other options. CD-ROM is a non-volatile optical data storage medium using the same physical format as audio compact disk, readable by a computer with a CD-ROM
drive. The standard 12 cm diameter CD-ROM store about 660 megabytes.
3. ALU is
a. Arithmetic Logic Unit
b. Array Logic Unit
c. Application Logic Unit
d. None of above
Explanation: ALU is a unit in Central Processing Unit in a computer system that is responsible for arithmetic calculations and logical operations. Apart from ALU, the CPU contains MU (Memory Unit) and CU (Control Unit).
4. VGA is
a. Video Graphics Array
b. Visual Graphics Array
c. Volatile Graphics Array
d. Video Graphics Adapter
Explanation: VGA is a type of Graphics Adapter. Graphic Adapter is an electronic board that controls the display of a monitor. This device helps the motherboard to work with the monitor and in VGA and SVGA the last letter
A stands for Array whereas in MDA, CGA, MCGA the last letter A stands for Adapter.
5. IBM 1401 is
a. First Generation Computer
b. Second Generation Computer
c. Third Generation Computer
d. Fourth Generation Computer
Explanation: IBM 1401 is a Second Generation Computer and is the first computer to enter Nepal in 2028 BS for census. Government of Nepal had brought this computer on rent and later purchased for data processing in
Bureau of Statistics. After this computer, another ICL 2950/10, a British computer, was purchased by the fund of UNDP and UNFPA for the census of 2038 BS is second computer in Nepal.
6. MSI stands for
a. Medium Scale Integrated Circuits
b. Medium System Integrated Circuits
c. Medium Scale Intelligent Circuit
d. Medium System Intelligent Circuit
Explanation: After the invention of IC chips the development of computers plunged into next phase. Small Scale Integration and Medium Scale Integration (SSI and MSI) were used in third generation of computers and Large
Scale Integration and Very Large Scale Integration (LSI and VLSI) are being used in fourth generation of computers. People are now expecting ULSI (Ultra Large Scale Integration) Circuits to be used for fifth generation
computers.
7. The capacity of 3.5 inch floppy disk is
a. 1.40 MB
b. 1.44 GB
c. 1.40 GB
d. 1.44 MB
Explanation: Microfloppy disks (3.5 inch) if it is high density (MF2HD) can store 1.44 MB and if it is low density (MF2DD),it can store 720 KB. Mini Floppy disks (5.25 inch) if it is high density (MD2HD) can store 1.2 MB and low
density (MD2DD) stores 360 KB of data.
8. The first computer introduced in Nepal was
a. IBM 1400
b. IBM 1401
c. IBM 1402
d. IBM1402
Explanation: IBM 1401, a second generation computer was brought in Nepal by the Government of Nepal paying One Lakh and twenty five thousands per month to use in the census in 2028 B.S. Before this computer, Nepal
was using a calculating device called Facit for statistical tasks.
9. WAN stands for
a. Wap Area Network
b. Wide Area Network
c. Wide Array Net
d. Wireless Area Network
Explanation: There are three different classes of computer network namely, Local Area Network (LAN) that covers a small geographical area such as a room, a building or a compound; Metropolitan Area Network (MAN) that
has a citywide coverage; and Wide Area Network (WAN) that covers the whole globe or beyond the globe.
10. MICR stands for
a. Magnetic Ink Character Reader
b. Magnetic Ink Code Reader
c. Magnetic Ink Cases Reader
d. None
Explanation: MICR (Magnetic Ink Character Reader) is kind of scanner that can scan and identify the writing of magnetic ink. This device is used in banks to verify signatures in Checks.
11. EBCDIC stands for
a. Extended Binary Coded Decimal Interchange Code
b. Extended Bit Code Decimal Interchange Code
c. Extended Bit Case Decimal Interchange Code
d. Extended Binary Case Decimal Interchange Code
Extended Binary Coded Decimal Interchange Code
Explanation: EBCDIC is an 8-bit binary code for larger IBMs primarily mainframes in which each byte represent one alphanumeric character or two decimal digits. 256 characters can be coded using EBCDIC.
12. BCD is
a. Binary Coded Decimal
b. Bit Coded Decimal
c. Binary Coded Digit
d. Bit Coded Digit
Explanation: BCD is a binary coded notation in which each of the decimal digits is expressed as a 8-bit binary numeral. For example in binary coded decimal notation 12 is 0001 0010 as opposed to 1100 in pure binary.
13. ASCII stands for
a. American Stable Code for International Interchange
b. American Standard Case for Institutional Interchange
c. American Standard Code for Information Interchange
d. American Standard Code for Interchange Information
c. American Standard Code for Information Interchange
Explanation: ASCII is a code which converts characters letters, digits, punctuations and control characters such as Alt, Tab etc into numeral form. ASCII code is used to represent data internally in micro-computers. ASCII
codes are 7 bits and can represent 0 to 127 and extended ASCII are 8 bits that represents 0 to 255.
14. Which of the following is first generation of computer
a. EDSAC
b. IBM-1401
c. CDC-1604
d. ICL-2900
a. EDSAC
Explanation: IBM-1401, CDC-1604 is second generation computer. ICL-2900 is a fourth generation computer. EDSAC is important in the development of computer since it was the first computer to use John von. Neumanns
Stored Program Concept. It used 3000 vacuum tubes and computers with vacuum tubes are of first generation computers.
15. Chief component of first generation computer was
a. Transistors
b. Vacuum Tubes and Valves
c. Integrated Circuits
d. None of above
b. Vacuum Tubes and Valves
Explanation: Transistors were used for second generation computers and integrated circuits in third generation. First generation computers used vacuum tubes and valves as their main electronic component. Vacuum Tubes
were invented by Lee DeForest in 1908.
16. FORTRAN is
a. File Translation
b. Format Translation
c. Formula Translation
d. Floppy Translation
c. Formula Translation
Explanation: FORTRAN (Formula Translation) is one of the earlier High Level programming languages used to write scientific applications. It was developed by IBM in 1956.
17. EEPROM stand for
a. Electrically Erasable Programmable Read Only Memory
b. Easily Erasable Programmable Read Only Memory
c. Electronic Erasable Programmable Read Only Memory
d. None of the above
a. Electrically Erasable Programmable Read Only Memory
Explanation: There are three types of ROM namely, PROM, EPROM and EEPROM. PROM cant be reprogrammed, EPROM can be erased by exposing it in high intensity ultraviolet light and EEPROM can be erased and
reprogrammed electrically. It is not needed to be removed from the computer to be modified.
18. Second Generation computers were developed during
a. 1949 to 1955
b. 1956 to 1965
c. 1965 to 1970
d. 1970 to 1990
Correct Answer: 1956 to 1965
Explanation: Second generation computers used transistors as their main electronic component. Transistor was invented by Bell Lab Scientists John Burdeen, Walter Brattain and William Shockley in 1947 and won the Nobel
Prize in 1956 but it was not used in computers till 1956. The second generation continued until the implementation of IC chips invented by Jack Kilby in Texas Instruments in 1958.
19. The computer size was very large in
a. First Generation
b. Second Generation
c. Third Generation
d. Fourth Generation
a. First Generation
Explanation: It is obvious that computers developed with more power, reliability, speed and smaller sizes due to the enhancement of technology. First generation computers used 1000s of vacuum tubes that required lot of
space made them gigantic in size. Single transistor could replace 1000 vacuum tubes and a single IC chip replaced 1000s of transistors made computers smaller and more speedy.
20. Microprocessors as switching devices are for which generation computers
a. First Generation
b. Second Generation
c. Third Generation
d. Fourth Generation
Fourth Generation
Explanation: Microprocessors further revolutionized the development of computers. Personal microcomputers were possible due to the microprocessors. The first microprocessor called Intel 4004 was developed by
American Intel Corporation in 1971. Microprocessors are used in the computers of fourth generation computers.
What do you call the programs that are used to find out possible faults and their causes?
21. Who invented the high level language C?
A) Dennis M. Ritchie
B) Niklaus Writh
C) Seymour Papert -Answer
D) Donald Kunth
22. Which of the following is not a type of Software
A) System Software
B) Application Software
C) Utility Software
D) Entertainment Software -Answer
23. Which of the following is not the classification of computers based on application?
A) Electronic Computers
B) Analog Computers
C) Digital Computers -Answer
D) Hybrid Computers
24 Which of the following registers is used to keep track of address of the memory location where the next instruction is located?
A) Memory address register
B) Memory data register
C) Instruction register
D) Program counter -Answer
25 Networking such as LAN, MAN started from
A) First generation
B) Second generation -Answer
C) Third generation
D) Fourth generation
26. Which characteristic of computer distinguishes it from electronic calculators?
A) Accuracy
B) Storage -Answer
C) Versatility
D) Automatic
27. Which of the following is the largest manufacturer of Hard Disk Drives?
A) IBM
B) Seagate -Answer
C) Microsoft
D) 3M
28 LSI, VLSI & ULSI chips were used in which generation?
A) First
B) Second
C) Third -Answer
D) Fourth
29. Which is the type of memory for information that does not change on your computer?
A) RAM
B) ROM
C) ERAM
D) RW / RAM -Answer
30Which generation of computer is still under development
a.Fourth Generation
b.Fifth Generation
c.Sixth Generation
d.Seventh Generation
b. Fifth Generation
Explanation: Todays computer fall under the fourth generation computers that uses the LSI and VLSI Integrated Circuits. For fifth generation computers it is expected for Ultra Large Scale Integrated Circuits (ULSI). The study
for using Gallium Arsenide instead of silicon chips is underway. Electrons can travel 5 times faster in Gallium Arsenide compared to the silicon. Similarly, genetically engineered protein molecules are being tried for
processors. Fifth generation computers are expected to have artificial intelligence, ability to use natural language.
31Artificial Intelligence is associated with which generation?
a.First Generation
b.Second Generation
c.Fifth Generation
d.Sixth Generation
c. Fifth Generation
Explanation: A computer is a slave in a box. This is a saying due to the lack of intelligence in computer in spite of their speed, accuracy, diligence and reliability. A computer can only perform instructed task in the way
already programmed. Thus, scientists are trying to develop artificial intelligence in computers so that they can think and make decisions themselves. This is expected for fifth generation computers.
32Which operation is not performed by computer
a.Inputting
b.Processing
c.Controlling
d.Understanding
d. Understanding
Explanation: Computers cant understand since they dont have intelligence. Lets hope in fifth generation they will achieve artificial intelligence and be able to understand.
33Fifth generation computer is also known as
a.Knowledge information processing system
b.Very large scale integration (VLSI)
c.Both of above
d.None of above
a. Knowledge information processing system
Explanation: Fifth Generation computers will have artificial intelligence and will be able to understand making knowledge information processing system possible,
34Central Processing Unit is combination of
a.Control and storage
b.Control and output unit
c.Arithmetic logic and input unit
d.Arithmetic logic and control unit
d. Arithmetic logic and control unit
Explanation: Arithmetic logic and control unit along with memory unit forms a complete central processing unit and central processing unit along with input/output unit forms a computer system.
35The brain of any computer system is
a.Control Unit
b.Arithmetic Logic Unit
c.Central Processing Unit
d.Storage Unit
c. Central Processing Unit
Explanation: Control unit or arithmetic logical unit alone can not represent the function of brain to compare with neither does storage unit only. Central Processing Unit is the combination of control, arithmetic logic and memory
units thus can be compared with brain that controls the body, processes its functions and remembers.
36Pick the one that is used for logical operations or comparisons such as less than equal to or greater than.
a.Arithmetic and Logic Unit
b.Control Unit
c.Both of above
d.None of above
a. Arithmetic and Logic Unit
Explanation: Logical sub-unit of ALU performs all the comparisons such as less than equal to or greater than. Arithmetic sub-unit of ALU performs calculations such as addition, subtraction and so on.
37Analog computer works on the supply of
a.Continuous electrical pulses
b.Electrical pulses but not continuous
c.Magnetic strength
d.None of the above
a. Continuous electrical pulses
Explanation: Analog computers works on the continuous electrical pulses and digital computers work on the discrete electrical pulses. Analog computers need to process physical quantities such as temperature, pressure,
speed etc.
38Digital devices are
a.Digital Clock
b.Automobile speed meter
c.Clock with a dial and two hands
d.All of them
a. Digital Clock.
Explanation: Automobile speed meter and clock with a dial and two hands are analog devices. Speed meter works on speed of wheel and the later works on tension of dialed spring.
39The computer that process both analog and digital is called
a.Analog computer
b.Digital computer
c.Hybrid computer
d.Mainframe computer
c. Hybrid Computer
Explanation: Analog, Digital and Hybrid are the three classes of computers based on the work or principle on which computer work. Hybrid computers can perform both the tasks of analog computers as well as hybrid
computers. These computers are used in aircraft, hospitals where measuring physical quantities and converting them into digital data to analyze is required.
40Offline device is
a. A device which is not connected to CPU
b. A device which is connected to CPU
c. A direct access storage device
d. An I/O device
Offline device is
a. A device which is not connected to CPU
