Computer Memory
Total Questions: 20
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A ) Random Access Module
B ) Remote Access Module
C ) Real-time Allocation Memory
D ) Random Access Memory ✅
Explanation:
✅ RAM stands for: Random Access Memory
- ✅ Definition:
RAM is a type of computer memory that allows data to be read and written quickly in any order (randomly). - ✅ Volatility:
RAM is volatile memory → data is lost when power is turned off. - ✅ Function:
- Stores programs and data that the CPU is currently using.
- Makes the system fast by allowing quick access.
- ✅ Types of RAM:
- SRAM (Static RAM)
- DRAM (Dynamic RAM)
- SDRAM, DDR, DDR2, DDR3, DDR4, DDR5.
A ) ROM
B ) Cache
C ) RAM ✅
D ) Hard Disk
Explanation:
Volatile memory loses its contents when the power is turned off. RAM is an example of volatile memory.
A ) Long-term storage
B ) Temporary storage ✅
C ) Network storage
D ) Virtual memory
Explanation:
Cache memory is used for temporary storage to provide faster access to frequently used instructions and data.
A ) RAM
B ) Flash Memory ✅
C ) Cache
D ) ROM
Explanation:
Flash memory is non-volatile and retains data even when the power is turned off.
A ) Temporary storage
B ) Cache storage
C ) Virtual memory
D ) Permanent storage ✅
Explanation:
ROM (Read-Only Memory) is used for permanent storage, and its content is not easily modified.
A ) ROM ✅
B ) Hard Disk
C ) Cache
D ) RAM
Explanation:
The Basic Input/Output System (BIOS) is typically stored in ROM.
A ) Digital RAM
B ) Dynamic Random Access Memory ✅
C ) Direct Read Access Memory
D ) Disk Random Access Memory
Explanation:
✅ RAM stands for: Random Access Memory
- ✅ Definition:
RAM is a type of computer memory that allows data to be read and written quickly in any order (randomly). - ✅ Volatility:
RAM is volatile memory → data is lost when power is turned off. - ✅ Function:
- Stores programs and data that the CPU is currently using.
- Makes the system fast by allowing quick access.
- ✅ Types of RAM:
- SRAM (Static RAM)
- DRAM (Dynamic RAM)
- SDRAM, DDR, DDR2, DDR3, DDR4, DDR5.
A ) Data found in cache ✅
B ) Data not found
C ) Cache overflow
D ) Cache miss
Explanation:
A cache hit occurs when the requested data is found in the cache, resulting in faster access.
A ) RAM expansion
B ) Cache overflow
C ) ROM storage
D ) Disk space used as RAM ✅
Explanation:
Virtual memory uses disk space to simulate additional RAM when the physical
A ) Temporary storage
B ) Virtual memory
C ) Permanent storage ✅
D ) Cache storage
Explanation:
EEPROM (Electrically Erasable Programmable Read-Only Memory) is used for non-volatile, rewritable storage.
A ) Flash Memory ✅
B ) ROM
C ) RAM
D ) Cache
Explanation:
Flash memory is both non-volatile and rewritable.
A ) Manage Memory Units
B ) Memory Mapping Unit ✅
C ) Main Memory Unit
D ) Memory Module Utility
Explanation:
The Memory Management Unit (MMU) handles the mapping between virtual addresses and physical addresses.
A ) RAM
B ) Hard Disk ✅
C ) ROM
D ) Cache
Explanation:
Hard disks are commonly used for long-term storage as secondary storage devices.
A ) Memory volatility
B ) Memory type
C ) Memory size
D ) Speed of memory access ✅
Explanation:
Latency in memory refers to the speed at which data can be accessed.
A ) Virtual memory extension ✅
B ) Cache overflow
C ) Cache overflow
D ) ROM storage
Explanation:
Swap space extends virtual memory by using disk space when physical RAM is insufficient.
A ) Static RAM ✅
B ) Sequential RAM
C ) System RAM
D ) Storage RAM
Explanation:
✅ RAM stands for: Random Access Memory
- ✅ Definition:
RAM is a type of computer memory that allows data to be read and written quickly in any order (randomly). - ✅ Volatility:
RAM is volatile memory → data is lost when power is turned off. - ✅ Function:
- Stores programs and data that the CPU is currently using.
- Makes the system fast by allowing quick access.
- ✅ Types of RAM:
- SRAM (Static RAM)
- DRAM (Dynamic RAM)
- SDRAM, DDR, DDR2, DDR3, DDR4, DDR5.
A ) RAM
B ) Hard Disk ✅
C ) ROM
D ) Cache
Explanation:
Hard disks are commonly used for long-term storage.
A ) Manage RAM ✅
B ) Manage cache memory
C ) Manage ROM
D ) Manage hard disk
Explanation:
A memory controller manages access to the RAM in a computer system.
A ) Improve memory latency
B ) Increase memory speed
C ) Expand memory capacity
D ) Ensure data integrity ✅
Explanation:
Parity bits help detect errors and ensure data integrity in memory.
A ) RAM
B ) ROM
C ) Flash Memory ✅
D ) Cache
Explanation:
USB drives typically use Flash Memory for portable and rewritable storage.