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1

How does RAM affect a computer performance?

Medium 2 Marks

More RAM means the computer can juggle more tasks at once.

A It determines the screen resolution

B It determines how many programs can run simultaneously and affects execution speed

C It controls the speed of the internet connection

D It determines the quality of printed output

2

What is DRAM?

Medium 2 Marks

Dynamic means it needs constant refreshing to keep its data.

A A type of ROM used for permanent storage

B Dynamic RAM that stores each bit in a capacitor and needs constant refreshing

C Static RAM that uses flip-flop circuits

D A type of cache memory inside the CPU

3

What is SRAM and where is it mainly used?

Medium 2 Marks

Static means it holds data without refreshing — making it faster but costlier.

A Slow RAM used as main system memory

B Dynamic RAM that requires constant refreshing

C Static RAM that uses flip-flop circuits and is mainly used in cache memory

D RAM that can only be read not written to

4

Which type of RAM is faster: DRAM or SRAM?

Easy 1 Mark

Which RAM avoids the time wasted on refreshing cycles?

A DRAM

B Both are equally fast

C SRAM

D Speed depends on manufacturer

5

Which type of RAM is used as the main system memory in computers?

Easy 1 Mark

Cost matters for large-capacity main memory — which is cheaper?

A SRAM

B EEPROM

C DRAM

D Cache memory

6

What does ROM stand for?

Easy 1 Mark

ROM can be read but not easily written to — hence its name.

A Random Output Memory

B Read Only Memory

C Rewritable Output Module

D Rapid Output Memory

7

What is the key difference between RAM and ROM?

Easy 1 Mark

Volatile means data disappears without power — which one keeps data permanently?

A RAM is slower than ROM

B RAM is non-volatile while ROM is volatile

C RAM is volatile (temporary) while ROM is non-volatile (permanent)

D ROM is used for running programs while RAM stores firmware

8

What is firmware?

Medium 2 Marks

Think about software that is baked into the hardware itself.

A A type of application software installed by the user

B Software permanently embedded in hardware devices stored in ROM

C A type of antivirus program

D Temporary data stored in RAM during processing

9

What is ROM primarily used for in a computer?

Easy 1 Mark

What instructions does a computer need before it can even start the operating system?

A Running user applications like word processors

B Storing temporary data during program execution

C Storing firmware and instructions needed to boot the computer

D Acting as virtual memory when RAM is full

10

What is PROM?

Medium 2 Marks

PROM can be written once — after that it becomes permanent.

A Permanently Readable Output Memory

B Programmable Read Only Memory that can be programmed once after manufacturing

C Erasable ROM that uses ultraviolet light

D ROM that uses electrical signals for erasure

11

How is EPROM erased?

Medium 2 Marks

The E in EPROM stands for Erasable — think about what type of light erases it.

A Using electrical signals

B Using a strong magnetic field

C Using ultraviolet (UV) light

D Using water cooling

12

What is EEPROM?

Medium 2 Marks

The EE in EEPROM stands for Electrically Erasable — no UV light needed.

A ROM that can only be programmed once

B ROM erased using ultraviolet light

C Electrically Erasable Programmable ROM that can be erased and rewritten using electrical signals

D A type of DRAM used for cache memory

13

Which type of ROM is used in most modern computers?

Medium 2 Marks

Which ROM technology is most flexible and convenient for updates?

A PROM

B EPROM

C Basic ROM

D EEPROM or Flash memory

14

Which of the following correctly describes a characteristic of ROM?

Easy 1 Mark

Non-volatile means the data survives without power.

A Data is lost when the computer is turned off

B Data can be freely written and rewritten like RAM

C Data is not lost when power is turned off

D ROM is faster than RAM

15

What is cache memory?

Easy 1 Mark

Think about a small but super-fast shortcut memory right next to the CPU.

A A large storage area on the hard disk

B A very small but extremely fast memory located close to or inside the CPU

C A type of secondary storage for backups

D Another name for virtual memory

16

What is the main purpose of cache memory?

Medium 2 Marks

Cache saves time by keeping frequently needed data within quick reach.

A To store the operating system permanently

B To act as virtual memory when RAM is full

C To improve CPU performance by storing frequently accessed data closer to the CPU

D To provide long-term backup storage

17

How does cache memory improve CPU performance?

Medium 2 Marks

What happens when the CPU finds data in cache instead of going to RAM?

A By increasing the clock speed of the CPU

B By replacing RAM entirely

C By storing frequently used data close to the CPU so it is retrieved faster than from RAM

D By compressing data to save storage space

18

Which of the following correctly describes cache memory?

Medium 2 Marks

Cache trades size for speed — it is tiny but extremely fast.

A Large in size and slow in speed

B Small in size fast in speed and expensive

C Large in size fast in speed and cheap

D Same speed as RAM but larger

19

What is L1 cache?

Medium 2 Marks

L1 is first in line — smallest fastest and closest to the processor.

A The largest and slowest cache level

B Cache located on the hard disk for faster file access

C The smallest and fastest cache located inside the CPU

D Cache shared between multiple CPU cores

20

What is the correct order of cache levels from fastest to slowest?

Medium 2 Marks

L1 is fastest because it is physically inside the CPU.

A L3 then L2 then L1

B L2 then L1 then L3

C L1 then L2 then L3

D All cache levels have equal speed

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