Tuesday 21 June 2016

Computer Awareness - 73

    1.     What is the responsibility of the logical unit in the CPU of a computer?
a.     Producing result
b.     Comparing numbers
c.      Controlling flow of information
d.     Performing mathematical operations
    2.     Abacus was the first ___
a.     Electronic computer
b.     Mechanical computer
c.      Electronic calculator
d.     Mechanical calculator
    3.     If in a computer, 16 bits are used to specify address in a RAM, the number of addresses will be ___
a.     216
b.     65,536
c.      64K
d.     128K
    4.     Instructions and memory address are represented by ___
a.     Character code
b.     Binary code
c.      Binary word
d.     Parity bit
    5.     The terminal device that functions as a cash register, computer terminal and OCR reader is:
a.     Data collection terminal
b.     OCR register terminal
c.      Video Display terminal
d.     POS terminal
    6.     A set of flip flops integrated together is called ____
a.     Counter
b.     Adder
c.      Register
d.     Flip flop
    7.     People often call ______ as the brain of computer system.
a.     Control Unit
b.     Arithmetic Logic Unit
c.      Central Processing Unit
d.     Storage Unit
    8.     Which of the following is used for manufacturing chips?
a.     Bus
b.     Control unit
c.      Semiconductors
d.     a and b only
    9.     The first computer introduced in India was ___
a.     IBM 1400
b.     HEC-2M
c.      IBM 1402
d.     IBM 1406
    10. Bluetooth is a type of radio wave information transmission system that is good for about:
a.     30 feet
b.     30 yards
c.      30 miles
d.     300 miles
    11. A credit card-sized expansion board that is inserted into portable computers that connects the modem to the telephone wall jack is:
a.     Internal modem
b.     External modem
c.      PC Card modem
d.     Wireless modem
    12. A modem that is contained within the system unit is called:
a.     External
b.     Internal
c.      Wireless
d.     Wi-Fi
    13. A modem that doesn't need to be connected to a telephone line is the ___ modem.
a.     External
b.     Internal
c.      Wireless
d.     DSL
    14. A special high-speed line used by large corporations to support digital communications is known as:
a.     satellite/air connection service lines
b.     cable modems
c.      digital subscriber lines
d.     T1, T2, T3 and T4 lines
    15. An affordable technology that uses existing telephone lines to provide high-speed connections is called ________.
a.     ISDN
b.     Microwave
c.      cable modem
d.     DSL
    16. The capacity of a communication channel is measured in ___
a.     Bandwidth
b.     Bit capacity
c.      Baud rate
d.     Data flow
    17. A relatively new technology that allows wireless connectivity:
a.     Bluetooth
b.     Black tooth
c.      Blue band
d.     Broadband
    18. In MS-DOS 5.0, which is the number that acts as a code to uniquely identify the software product?
a.     MS
b.     DOS
c.      MS DOS
d.     5.0
    19. A page fault:
a.     Is an error in a specific page
b.     Occurs when a program accesses a page of memory
c.      Is an access to a page not currently in memory
d.     None of the above
    20. The process of transferring data intended for a peripheral device into a disk or intermediate store so that it can be transferred to peripheral at a more convenient time or in bulk, is known as ___.
a.     Multiprogramming
b.     Spooling
c.      Caching
d.     Virtual programming
    21. An instruction in a programming language that is replaced by a sequence of instructions prior to assembly or compiling:
a.     Procedure
b.     Macro
c.      Label
d.     Literal
    22. Banker's algorithm for resource allocation deals with:
a.     Deadlock prevention
b.     Deadlock avoidance
c.      Deadlock recovery
d.     Mutual exclusion
    23. The state of a process after it encounters an I/O instruction is _____.
a.     Ready
b.     Blocked/ Waiting
c.      Idle
d.     Running
    24. The number of processes completed per unit time is known as__.
a.     Output
b.     Throughput
c.      Efficiency
d.     Capacity
    25. Which of the following file name extension suggests that the file is Backup copy of another file?
a.     TXT
b.     COM
c.      BAS

d.     BAK

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