Computer Science MCQs – Memory and Storage in Computers (Job Test Preparation in Pakistan)
Which type of memory retains data even when the power is turned off?
ROM (Read-Only Memory) is non-volatile, meaning it retains its data even when the power is turned off.
Which storage device is typically used for long-term storage?
Hard Disk Drives (HDDs) are commonly used for long-term storage due to their large capacity and cost-effectiveness.
What does RAM stand for?
RAM stands for Random Access Memory, which is a type of computer memory that can be accessed randomly.
What is the main function of cache memory?
Cache memory is used for temporarily storing frequently accessed data to speed up data retrieval.
Which type of memory is non-volatile?
ROM (Read-Only Memory) is non-volatile, meaning it retains its data even when the power is turned off.
What is the purpose of virtual memory?
Virtual memory provides additional RAM space by using part of the hard disk, allowing computers to run larger applications or multiple applications simultaneously.
Which storage device is the fastest for accessing data?
Solid State Drives (SSDs) are faster for accessing data compared to other storage devices due to their lack of moving parts and use of flash memory.
Which storage unit is the smallest?
A byte is the smallest unit of storage among the options provided, consisting of 8 bits.
What does SSD stand for?
SSD stands for Solid State Drive, a type of storage device that uses flash memory to store data.
Which type of memory is typically used for CPU cache?
SRAM (Static Random Access Memory) is typically used for CPU cache due to its speed and reliability.
Which storage device uses laser technology to read and write data?
CD-ROMs use laser technology to read and write data on the disc surface.
What is the purpose of formatting a storage device?
Formatting a storage device prepares it for use by setting up a file system structure, which allows data to be stored and retrieved.
Which storage device has the highest storage capacity?
Hard Disk Drives (HDDs) typically have the highest storage capacity among the options provided, often reaching several terabytes.
What does HDD stand for?
HDD stands for Hard Disk Drive, a type of storage device that uses magnetic storage to store and retrieve digital information.
Which type of memory is faster: RAM or ROM?
RAM (Random Access Memory) is faster than ROM (Read-Only Memory) because it is designed for quick read and write operations.
Which storage device is most commonly used for backups?
External Hard Disk Drives are commonly used for backups due to their large storage capacity and reliability.
What is the purpose of a file system?
The purpose of a file system is to organize and manage files on a storage device, allowing users to easily access and manipulate data.
Which storage device is the most portable?
USB Flash Drives are the most portable storage devices due to their small size and ease of use.
What is the typical lifespan of an SSD compared to an HDD?
The lifespan of an SSD compared to an HDD can vary, but generally, both can have similar lifespans depending on usage patterns and conditions.
Which storage device is most commonly used for installation of operating systems?
Hard Disk Drives (HDDs) are most commonly used for the installation of operating systems due to their large storage capacity and cost-effectiveness.
Which type of memory is typically used for storing BIOS settings?
BIOS settings are typically stored in ROM (Read-Only Memory) because it is non-volatile and retains data even when the power is turned off.
Which storage device is most commonly used for transferring files between computers?
USB Flash Drives are most commonly used for transferring files between computers due to their portability and ease of use.
Which type of memory is typically faster: SRAM or DRAM?
SRAM (Static Random Access Memory) is typically faster than DRAM (Dynamic Random Access Memory) due to its design and lower latency.
What is the purpose of a USB flash drive?
The purpose of a USB flash drive is to store data in a portable and easily accessible format.