Computer Memory & Memory Organization Questions with Solutions
Computer memory stores data and instructions. This topic covers the memory hierarchy, from registers and cache memory to main memory (RAM and ROM) and secondary storage (hard disks, SSDs, optical discs and flash drives). It also covers types of RAM (SRAM and DRAM), types of ROM (PROM, EPROM and EEPROM), virtual memory, and units of memory from bits and bytes to kilobytes, megabytes, gigabytes and terabytes. Exam questions test the differences between volatile and non-volatile memory, which memory is fastest or largest, memory unit conversions, and the role of cache memory. Remember that moving up the memory hierarchy makes memory faster and costlier per bit but smaller in capacity. RAM is volatile and loses its contents when power is switched off, while ROM keeps its contents. Practise the computer memory questions below. Each answer comes with a short explanation.
- Q1.
A hard drive system has 2 circular disks with a total of 4 surfaces. Each surface has 5000 tracks, each with 2000 sectors. How many sectors can be read without the reading head having to make a mechanical movement?
A. 10000B. 20000C. 4000D. 8000mediumAsked in NIMCET 2026View solution › - Q2.
Which of the following is used for very high speed searching applications?
A. Flash MemoryB. Content-addressable MemoryC. Dynamic Random Access MemoryD. Static Random Access MemorymediumAsked in TCS ExamView solution › - Q3.
In IT, the method for updating the main memory as soon as a word is removed from the cache is called
A. Write - throughB. Write-backC. Protected-writeD. Cache-writemediumAsked in TCS ExamView solution › - Q4.
In IT the technique that is used to increase the bandwidth is
A. Memory ManagementB. Memory InterleavingC. Memory IntraleavingD. Memory LeavingmediumAsked in TCS ExamView solution › - Q5.
Storage capacity of magnetic disk depends on
A. Tracks per inch of surfaceB. Bits per inch of tracksC. Disk pack in disk surfaceD. All of the abovemediumAsked in TCS ExamView solution › - Q6.
Which memory is NOT primarily based on semiconductors?
A. Main MemoryB. Cache MemoryC. Secondary MemoryD. RegistersmediumAsked in TCS ExamView solution › - Q7.
Aliya has 2600 MB of data. Dinesh has 4000 MB of data. The combined data would fit on a USB flash drive of ___________ storage capacity.
A. 1 GBB. 2 GBC. 6 GBD. 10 GBmediumAsked in TCS ExamView solution › - Q8.
_________ requires constant power flow in order to function Because of the continuous power it doesn't need to be refreshed' to remember the data being stored. However, it is a volatile memory. Which means that all the data that had been stored becomes lost once the power is cutoff.
A. DRAMB. SRAMC. SSDRAMD. SDRAMmediumAsked in TCS ExamView solution › - Q9.
70,000 bytes is equal to
A. 70 KBB. 70 GBC. 70 MBD. 700 KBmediumAsked in TCS ExamView solution › - Q10.
A memory has an access time of 45 ns, and a gap of 5 ns is needed between two successive accesses. The bandwidth of the memory is
A. 25 MHzB. 20 MHzC. 40 MHzD. 50 MHzmediumAsked in NIMCET 2010View solution › - Q11.
The main disadvantage of direct mapping of cache organisation is that
A. it does not allow simultaneous access to the intended data and its tagB. it is more expensive than other types of organisationC. the cache hit ratio is degraded if two or more blocks used alternately map onto the same block frame in the cacheD. the number of blocks required for the cache increases linearly with the size of the main memorymediumAsked in NIMCET 2008View solution › - Q12.
Dynamic RAM consumes……. Power and ……than Static RAM
A. More, FasterB. More, SlowerC. Less, SlowerD. Less, FastermediumAsked in NIMCET 2020View solution ›