Computer Knowledge
Computer Memory and Storage
2,477 Questions
Computer memory and storage questions test foundational knowledge of hardware, cache mapping, and data transfer mechanisms. Key areas include Direct Memory Access, analog recording, and RAID levels. This section is essential for candidates preparing for banking and government computer proficiency tests.
Cache memory mappingDirect memory accessRAID storage levelsHard disk technologyOptical media storageMemory addresses
Computer Memory and Storage Questions
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memory Map.
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memory protection.
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memory management.
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All of the above.
B
Correct answer
Explanation
Memory protection is the specific mechanism used to control access to memory, ensuring that processes cannot access memory segments they are not authorized to use. Memory management is the broader process of allocating and deallocating memory.
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fixed disk.
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disk cartridge.
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card punch.
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card reader.
B
Correct answer
Explanation
A disk cartridge is a removable storage medium that contains a single rigid magnetic disk, often used in older computer systems for portable storage.
A
Correct answer
Explanation
DSDD stands for Double Sided Double Density, which provides more storage capacity than single-sided or single-density formats.
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300 RPM
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360 RPM
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3600 RPM
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36000 RPM
C
Correct answer
Explanation
Standard hard disk drives (HDDs) typically rotate at speeds such as 3600, 5400, or 7200 RPM. 3600 RPM was a common standard for early hard disks.
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360 KB
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1.44 MB
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2.88 MB
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720 KB
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a flexible disk.
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a disk Stack.
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a removable disk.
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a hard disk.
B
Correct answer
Explanation
A Winchester disk is a type of hard disk drive that uses a sealed assembly containing the disk stack and read/write heads.
A
Correct answer
Explanation
The number of disks in a stack varies by model, but 2 is a common minimum for a basic disk stack assembly in educational examples.
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Laser disks
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Tape cassettes
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RAM cartridge
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Punched cards
A
Correct answer
Explanation
Laser disks, such as CDs or DVDs, store data by using a laser to create microscopic pits on the surface of a metal-coated disk.
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Accumulator
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Address register
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Buffer
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Memory
B
Correct answer
Explanation
The program counter, often implemented as an address register, holds the memory address of the next instruction to be fetched and executed by the CPU.
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Hard disk
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Magnetic tape
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Floppy disk
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Card punch
A
Correct answer
Explanation
A hard disk drive uses rotating platters coated with a ferromagnetic material to store data magnetically. While floppy disks also use this, the term 'metal disk' specifically points to the rigid platters of a hard disk.
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Buffer
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Magnetic tape
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Associative storage
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Punched card
C
Correct answer
Explanation
Associative storage, also known as Content Addressable Memory (CAM), allows data to be retrieved based on its content rather than its memory address. This is distinct from standard RAM where you must know the address to retrieve the data.
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Buffer
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Backing storage
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PROM
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Accumulator
B
Correct answer
Explanation
Backing storage, also known as secondary storage, is used to store data and programs that are not currently being processed by the CPU. It is external to the main storage (RAM) and is non-volatile.
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Random Access Memory
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Read Only Memory
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Hard disk
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None of the above
A
Correct answer
Explanation
Random Access Memory (RAM) is volatile memory used to store data and programs that the CPU is currently using, allowing for fast temporary access.
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RAM
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ROM
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Virtual memory
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Port
A
Correct answer
Explanation
Scratch pad memory refers to a high-speed internal memory used for temporary storage of data during processing. RAM (Random Access Memory) serves this purpose in computer architectures.
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Magnetic disk
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Punched paper tape
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Master tape
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Card reader
C
Correct answer
Explanation
A master tape is a magnetic tape containing the primary data or program files that are read during processing without being modified.