JAMB Computer Studies questions

257 questions with answers and explanations. Tap an option to check yourself.

1. Question 41· Computer hardware and the CPU· JAMB

   Mainframe computers are used mainly by

   • Awristwatches
   • Bindividuals at home
   • Cchildren for games
   • Dlarge organisations such as banks for bulk processing

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2. Question 42· Computer hardware and the CPU· JAMB

   Ports such as USB are used to

   • Astore programs
   • Bcool the CPU
   • Cconnect external devices to the computer
   • Ddisplay images

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3. Question 43· Computer hardware and the CPU· JAMB

   The clock speed of a processor is measured in

   • Adots per inch
   • Bgigabytes
   • Cpixels
   • Dgigahertz

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4. Question 44· Computer hardware and the CPU· JAMB

   The address bus carries

   • Athe memory location to be read or written
   • Bthe data itself
   • Celectrical power
   • Dsound

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5. Question 45· Computer hardware and the CPU· JAMB

   A computer that works with continuously varying quantities such as temperature is

   • Aa microcomputer
   • Ba digital computer
   • Ca hybrid computer
   • Dan analogue computer

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   Explanation and discussion

6. Question 46· Computer hardware and the CPU· JAMB

   A CPU with a 32-bit address bus can address up to

   • A32 MB
   • B4 GB of memory
   • C1 GB
   • D64 GB

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7. Question 47· Computer hardware and the CPU· JAMB

   Small, very fast storage locations inside the CPU are

   • Aprinter buffers
   • BROM chips
   • Chard disks
   • Dregisters

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8. Question 48· Computer hardware and the CPU· JAMB

   The motherboard is

   • Athe main circuit board connecting all components
   • Ba type of monitor
   • Can input device
   • Da storage disk

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9. Question 49· Computer hardware and the CPU· JAMB

   The fetch-decode-execute cycle is carried out by the

   • ACPU
   • Bprinter
   • Cmonitor
   • Dkeyboard

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10. Question 50· Computer hardware and the CPU· JAMB

    The CPU's machine cycle is

    • Ainput, output, store
    • Bfetch, decode, execute
    • Cread, write, delete
    • Dboot, run, shut down

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11. Question 51· Computer hardware and the CPU· JAMB

    Which of these is NOT a component of the CPU?

    • Athe control unit
    • Bthe arithmetic logic unit
    • Cthe hard disk
    • Dthe registers

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12. Question 52· Computer hardware and the CPU· JAMB

    The control unit of the CPU

    • Astores data permanently
    • Bdirects and coordinates the operations of the computer
    • Cdisplays output
    • Dprints documents

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13. Question 53· Computer hardware and the CPU· JAMB

    Decoding an instruction means

    • Astoring it on disk
    • Bworking out what the instruction requires the CPU to do
    • Cprinting it
    • Ddeleting it

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14. Question 54· Computer hardware and the CPU· JAMB

    A hybrid computer combines

    • Aanalogue and digital features
    • Btwo monitors
    • Chardware and software
    • Dinput and output devices

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15. Question 55· Computer hardware and the CPU· JAMB

    A bus in a computer is

    • Aa program
    • Ba vehicle
    • Ca type of printer
    • Da set of lines that carries signals between components

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16. Question 56· Computer hardware and the CPU· JAMB

    A heat sink and fan on the processor are used to

    • Aprint faster
    • Bincrease memory
    • Cprevent overheating
    • Dconnect to the internet

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17. Question 57· Computer hardware and the CPU· JAMB

    The most powerful class of computers, used for weather forecasting, is

    • Asupercomputers
    • Bmicrocomputers
    • Cminicomputers
    • Dlaptops

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18. Question 58· Computer hardware and the CPU· JAMB

    The main circuit board to which the CPU and memory are attached is the

    • Apower supply
    • Bhard disk
    • Cmonitor
    • Dmotherboard

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19. Question 59· Computer hardware and the CPU· JAMB

    The part of the CPU that carries out arithmetic and logical operations is the

    • ARAM
    • Bcontrol unit
    • Carithmetic and logic unit
    • Dhard disk

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20. Question 60· Computer networks and the internet· JAMB

    In a mesh topology, each device is

    • Aconnected to many or all other devices
    • Bconnected to a central hub only
    • Con a single cable
    • Disolated

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    Explanation and discussion