Class 11

Information Technology (802)

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21

Convert: 5 PB = ______ TB.

SHORT Easy
Information Technology (802) · Class 11 · Sep 26, 2026
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Explanation: 5 PB = 5 x 1024 TB = 5120 TB.
22

Explain the Input-Process-Output (IPO) cycle of a computer with the role of each functional unit.

LONG Medium
Information Technology (802) · Class 11 · Sep 26, 2026
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Explanation: Every task follows the Input-Process-Output cycle: the Input unit accepts data/instructions from devices like keyboard and mouse; the Central Processing Unit (comprising the Arithmetic Logic Unit and Control Unit) processes this data as per instructions, using the Memory unit to hold data and intermediate results during processing; finally, the Output unit (e.g., monitor, printer) presents the processed result to the user.
23

Convert: 6 PB = ______ TB.

SHORT Medium
Information Technology (802) · Class 11 · Sep 26, 2026
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Explanation: 6 PB = 6 x 1024 TB = 6144 TB.
24

Differentiate between RAM and ROM.

LONG Medium
Information Technology (802) · Class 11 · Sep 26, 2026
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Explanation: RAM (Random Access Memory) is volatile primary memory that loses its contents when power is switched off; it is used to hold the currently running programs/data and can be read from and written to. ROM (Read Only Memory) is non-volatile memory used mainly for startup operations; its contents are generally not altered during normal operation. Variants of ROM include PROM, EPROM, and EEPROM.
25

Convert: 7 PB = ______ TB.

SHORT Medium
Information Technology (802) · Class 11 · Sep 26, 2026
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Explanation: 7 PB = 7 x 1024 TB = 7168 TB.
26

Differentiate between DRAM and SRAM.

LONG Medium
Information Technology (802) · Class 11 · Sep 26, 2026
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Explanation: DRAM (Dynamic RAM) is used in main memory, is inexpensive, uses less power, and is slower than SRAM. SRAM (Static RAM) is used in cache memory, is expensive, uses more power, but is faster than DRAM.
27

Convert: 2048 Bytes = ______ KB.

SHORT Easy
Information Technology (802) · Class 11 · Sep 26, 2026
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Explanation: 2048 Bytes = 2048 / 1024 KB = 2 KB.
28

Which component holds together the CPU, memory, and expansion cards, and provides connectors like USB ports?

MCQ Easy
a. Hard Disk
b. Motherboard
c. Power Supply Unit
d. CPU Cabinet
Information Technology (802) · Class 11 · Sep 26, 2026
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Motherboard
Explanation: The motherboard is the main circuit board that connects all components of the computer.
29

Convert: 3072 Bytes = ______ KB.

SHORT Easy
Information Technology (802) · Class 11 · Sep 26, 2026
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Explanation: 3072 Bytes = 3072 / 1024 KB = 3 KB.
30

Which of these is an OUTPUT device?

MCQ Easy
a. Scanner
b. Microphone
c. Plotter
d. Webcam
Information Technology (802) · Class 11 · Sep 26, 2026
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Plotter
Explanation: A plotter is a large printer-like output device used for maps and architectural designs; the others are input devices.
31

Convert: 4096 Bytes = ______ KB.

SHORT Easy
Information Technology (802) · Class 11 · Sep 26, 2026
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Explanation: 4096 Bytes = 4096 / 1024 KB = 4 KB.
32

1024 Megabytes is equal to:

MCQ Easy
a. 1 Kilobyte
b. 1 Gigabyte
c. 1 Terabyte
d. 1 Petabyte
Information Technology (802) · Class 11 · Sep 26, 2026
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1 Gigabyte
Explanation: 1024 MB = 1 Gigabyte (GB), as per the standard storage hierarchy.
33

Convert: 5120 Bytes = ______ KB.

SHORT Easy
Information Technology (802) · Class 11 · Sep 26, 2026
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Explanation: 5120 Bytes = 5120 / 1024 KB = 5 KB.
34

Which device converts AC power supply to the low voltage DC required by the computer?

MCQ Easy
a. Motherboard
b. NIC
c. Power Supply Unit
d. Cache Memory
Information Technology (802) · Class 11 · Sep 26, 2026
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Power Supply Unit
Explanation: The Power Supply Unit converts AC current from the mains to low-voltage DC needed by the machine.
35

Convert: 2048 KB = ______ MB.

SHORT Easy
Information Technology (802) · Class 11 · Sep 26, 2026
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Explanation: 2048 KB = 2048 / 1024 MB = 2 MB.
36

Which of the following correctly orders storage capacity from smallest to largest?

MCQ Medium
a. Byte, Bit, Nibble, KB
b. Bit, Nibble, Byte, KB
c. Nibble, Bit, Byte, KB
d. KB, Byte, Nibble, Bit
Information Technology (802) · Class 11 · Sep 26, 2026
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Bit, Nibble, Byte, KB
Explanation: The correct order is Bit < Nibble (4 bits) < Byte (8 bits) < Kilobyte (1024 bytes).
37

Convert: 3072 KB = ______ MB.

SHORT Easy
Information Technology (802) · Class 11 · Sep 26, 2026
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Explanation: 3072 KB = 3072 / 1024 MB = 3 MB.
38

Which is an example of an optical storage device?

MCQ Easy
a. Pen drive
b. Hard Disk
c. DVD
d. RAM
Information Technology (802) · Class 11 · Sep 26, 2026
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DVD
Explanation: CD and DVD are examples of optical storage devices; DVDs have higher capacity than CDs.
39

Convert: 4096 KB = ______ MB.

SHORT Easy
Information Technology (802) · Class 11 · Sep 26, 2026
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Explanation: 4096 KB = 4096 / 1024 MB = 4 MB.
40

Processor speed is generally measured in megahertz (MHz) or gigahertz (GHz).

TRUE FALSE Easy
a. TRUE
b. FALSE
Information Technology (802) · Class 11 · Sep 26, 2026
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TRUE
Explanation: Speed of processors is measured in MHz (millions of instructions/cycles per second) or GHz (billions).