Computer Knowledge
Computer Memory and Storage
2,121 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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Chkdsk
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Disk Management
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Device Manager
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Scandisk
B
Correct answer
Explanation
Disk Management is the Windows utility that allows you to view and modify drive partition information. You can access it by right-clicking 'This PC' and selecting 'Manage,' then choosing 'Disk Management,' or by typing 'diskmgmt.msc' in the Run dialog. Chkdsk checks for file system errors, Scandisk is an older version of Chkdsk, and Device Manager shows hardware devices but not detailed partition layouts.
B
Correct answer
Explanation
The correct answer is B (64MB) because Microsoft officially specified 64MB RAM as the minimum requirement for Windows XP, though 128MB or more was recommended for acceptable performance. Windows XP was more resource-intensive than earlier Windows versions like Windows 98 (which could run on 32MB).
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Mother Board
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Platter
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Laser
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Riser Board
B
Correct answer
Explanation
A hard disk drive contains platters, which are circular disks coated with magnetic material that store data. The motherboard is a separate main circuit board, while lasers are used in optical drives like CD/DVD drives, not magnetic storage devices.
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Dell
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Microsoft
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Conner
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Seagate
D
Correct answer
Explanation
The question asks which company IS currently a hard disk drive manufacturer. Seagate is one of the major HDD manufacturers still in operation. Dell is a computer assembler (not a component manufacturer), Microsoft is a software company, and Conner Peripherals was acquired by Seagate in 1996 and no longer exists as an independent company.
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Maxtor
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Seagate
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Samsung
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NOne
B
Correct answer
Explanation
Seagate's tagline 'We turn on ideas' was used in their storage and hard drive marketing campaigns. The slogan emphasizes innovation and enabling technology. This tests brand slogan recognition.
A
Correct answer
Explanation
During the boot process, the bootstrap loader loads the kernel into main memory so it can take control of the system. The kernel remains resident in memory as long as the system runs, managing all system resources and operations. This is a fundamental step in initializing any Unix-like operating system.
A
Correct answer
Explanation
DRAM (Dynamic Random Access Memory) requires periodic refreshing because it uses capacitors that leak charge over time. SRAM uses flip-flops and doesn't need refreshing. PROM and EPROM are types of ROM that don't require refreshing.
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7200
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8700
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5400
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10000
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15000
B
Correct answer
Explanation
Standard HDD RPM speeds are 5400, 7200, 10000, and 15000 RPM. 8700 RPM is not a standard commercial hard drive speed and would be an unusual or non-existent specification in the market.
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Channel
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Buffer
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Register
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Core
B
Correct answer
Explanation
A buffer is a temporary storage area used to hold data during I/O operations. When data is transferred between the CPU and slower I/O devices, the buffer smooths out timing differences and allows the CPU to continue working without waiting for each I/O operation to complete.
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Set of capacitors used to register input instructions in a digital computer
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Set of paper tapes and cards put in a file
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Temporary storage unit within the CPU having dedicated or general purpose use
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part of the auxiliary memory
C
Correct answer
Explanation
A register is a small, fast storage location within the CPU that holds data temporarily during processing. They are faster than RAM and used for frequently accessed data.
B
Correct answer
Explanation
Windows cannot format the partition it is currently running from (usually the C: drive) because the operating system files are in active use. To format C:, one must boot from external media. Attempting to do so within the GUI will result in an error message stating the drive is in use.
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Zettabyte
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Petabyte
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Yottabyte
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exabyte
B
Correct answer
Explanation
The order of data storage prefixes in increasing order is: Kilobyte, Megabyte, Gigabyte, Terabyte, Petabyte, Exabyte, Zettabyte, Yottabyte. Therefore, the unit that comes after Terabyte is Petabyte.
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digital version disc
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digital versatile disc
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digital verification disk
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digital validity disc
B
Correct answer
Explanation
DVD stands for Digital Versatile Disc - it's a digital optical disc storage format.