CSC 100 | Study Mode

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Question 21
A
Storage Unit
B
Cache Unit
C
Input Unit
D
Output Unit
Explanation
The storage unit is responsible for storing the data. It makes the instructions readily available for additional or initial processing whenever required. The cache is a software component that stores data to serve the data requests in future. It can contain the result of some earlier computations.

Correct option: A
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Question 22
A
Primary and major
B
Primary and Secondary
C
Minor and Major
D
Main and virtual
Explanation
There are two types of memories in a computer system: The Primary Memory and the Secondary Memory. The primary memory can be directly accessed by the CPU whereas the secondary memory cannot be directly accessed.

Correct option: B
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Question 23
A
Primary Storage
B
Virtual Storage
C
Internal Storage
D
Minor Devices
Explanation
The primary storage is responsible for holding the data, intermediate results and the results of ongoing processes or jobs. Virtual storage is the main memory storage required for saving large amount of data for future reference. The other options are invalid.

Correct option: A
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Question 24
A
Backup
B
Secondary
C
Primary
D
Cache
Explanation
The secondary storage is the non-volatile storage unit because the data is not lost when the power supply is dissipated. Primary memory is the volatile memory.

Correct option: B
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Question 25
A
SRAM
B
DRAM
C
PRAM
D
DDR
Explanation
DRAM stands for dynamic random access memory. It is denser than SDRAM (Static) and therefore it is used in the main memory. They are in the form of semiconductor RAMs.

Correct option: B
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Question 26
A
SROM & DROM
B
PROM & EPROM
C
Only one type there is no further classification
D
PROM & EROM
Explanation
There are two types of Read Only Memories: PROM i.e., Programmable ROM & EPROM i.e., Erasable Programmable ROM. When only a small number of ROMs with a particular memory content is needed, PROM is used and in case of EPROM, all the contents of the storage cells must be erased before the write operation.

Correct option: B
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Question 27
A
Redundant array of independent disks
B
Redundant array of individual disks
C
Reusable Array of independent disks
D
Reusable array of individual disks
Explanation
RAID is a multiple-disk database design which is viewed as a single logical disk by the operating system. Data are distributed across the physical drives of the array. It guarantees the recovery of data in case of data failure.

Correct option: A
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Question 28
A
CD
B
CD-ROM
C
DVD-R
D
DVD-RW
Explanation
A compact disk stores digitized audio information. The standard system uses 12 cm disks and can record more than 60 minutes of uninterrupted playing game.

Correct option: A
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Question 29
A
SSEM
B
Cathode Ray Tube
C
Williams Tube
D
Thomass Tube
Explanation
The first practical form of RAM was the Williams Tube made in 1947. It stored data as electrically charged spots on the face of a Cathode Ray Tube.

Correct option: C
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Question 30
A
Arithmetic and logic unit
B
Motherboard
C
Control Unit
D
Memory
Explanation
The Arithmetic and logic unit performs all the basic operations of the computer system. It performs all the arithmetic(+,-,*,/,etc) as well as the logical operations( AND, OR, NOT, etc.).

Correct option: A

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