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.
Which of the following memories comes already written by the manufacturer and cannot be erased?
A. Memory onlyB. Write onlyC. Read onlyD. Once onlyeasyAsked in MAH MCA CET 2023View solution › - Q2.
Which of the following options is the correct match between the entries (I–IV) and the descriptions (A–D)?
A. I-A, II-C, III-D, IV-BB. I-A, II-B, III-D, IV-CC. I-B, II-D, III-A, IV-CD. I-B, II-C, III-D, IV-AeasyAsked in NIMCET 2026View solution › - Q3.
Which one of the following is the correct order of memory types in increasing access speed, from slowest to fastest?
A. Hard Drive → RAM → Cache → CPU RegistersB. RAM → Hard Drive → Cache → CPU RegistersC. Cache → RAM → CPU Registers → Hard DriveD. Hard Drive → Cache → RAM → CPU RegisterseasyAsked in NIMCET 2026View solution › - Q4.
Choose the smallest memory size unit.
A. KBB. TBC. MBD. GBeasyAsked in MAH MCA CET 2024View solution › - Q5.
Out of the following, __ holds the information temporarily as the computer processes the information in the storage area of the computer itself.
A. Control unitB. ROMC. Main memoryD. Hard diskeasyAsked in MAH MCA CET 2024View solution › - Q6.
CD-ROM is a __.
A. MicroprocessorB. MP3 fileC. Magnetic diskD. Storage mediumeasyAsked in MAH MCA CET 2024View solution › - Q7.
1 Gigabyte is equal to __?
A. 1032 megabytesB. 1024 bitsC. 1024 kilobytesD. 1024 megabyteseasyAsked in MAH MCA CET 2024View solution › - Q8.
What is the name of the storage device that compensates for the difference in rates of flow of data from one device to another?
A. ConcentratorB. BufferC. CacheD. RAMeasyAsked in NIMCET 2023View solution › - Q9.
How many RAM chips are needed to provide a memory capacity of 256K bytes?
A. 64B. 32C. 8D. 128easyAsked in NIMCET 2023View solution › - Q10.
All forms of ROM are also known as ___
A. FreewareB. MiddlewareC. FirmwareD. sharewareeasyAsked in TCS ExamView solution › - Q11.
Which of the following computer memories is non-volatile?
A. DRAMB. SRAMC. ROMD. RAMeasyAsked in TCS ExamView solution › - Q12.
What is the name of a memory buffer used to accommodate a speed differential?
A. CacheB. Stack PointerC. AccumulatorD. DisceasyAsked in TCS ExamView solution › - Q13.
Which is not an external storage device?
A. CD-ROMB. DVD-ROMC. Pen DriveD. RAMeasyAsked in TCS ExamView solution › - Q14.
In IT, associative memory is called as
A. Virtual memoryB. Cache memoryC. Content addressable memoryD. Main memoryeasyAsked in TCS ExamView solution › - Q15.
Cache memory works on the principle of ____
A. Locality of dataB. Locality of referenceC. Locality of MemoryD. Locality of Memory & referenceeasyAsked in TCS ExamView solution › - Q16.
Cache memory acts between
A. CPU and RAMB. CPU and ROMC. RAM and ROMD. CPU and Hard diskeasyAsked in TCS ExamView solution › - Q17.
The unit of measurement of a word length is
A. MetreB. ByteC. BitD. MillimetreeasyAsked in TCS ExamView solution › - Q18.
Main memory is also known as
A. Auxiliary memoryB. Primary memoryC. Secondary memoryD. None of the aboveeasyAsked in TCS ExamView solution › - Q19.
Which of these is not the measurement unit of memory?
A. TBB. PBC. GBD. DBeasyAsked in TCS ExamView solution › - Q20.
Which of the following processes marks the tracks and sectors of a new blank disk?
A. CleaningB. CheckingC. FormattingD. ComparingeasyAsked in TCS ExamView solution ›