Q-What does the term “random access” mean in terms of memory?
a) Any address can be accessed in systematic order
b) Any address can be accessed in any order
c) Addresses must be accessed in a specific order
d) Any address can be accessed in reverse order
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Answer: b
Explanation: “Random access” mean which can be accessed randomly and in other words any address can be accessed in any order.
Q-In the floppy drive, data is written to and read from the disk via a magnetic _____ head mechanism.
a) Cluster
b) Read/Write
c) Cylinder
d) Recordable
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Answer: b
Explanation: A floppy disk is a removable disk used for storing data via magnetic facilities. In the floppy drive, data is written to and read from the disk via a magnetic read/write head mechanism.
Q-Which ROM can be erased by an electrical signal?
a) ROM
b) Mask ROM
c) EPROM
d) EEPROM
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Answer: d
Explanation: In EPROM (Erasable Programmable ROMs), the ROM is cleared by exposing it to UV radiation and also it’s a tedious process. Whereas, in EEPROM, the ROM can be cleared electrically and thus is less time consuming and more efficient.
Q-What is the major difference between DRAM and SRAM?
a) Dynamic RAMs are always active; static RAMs must reset between data read/write cycles
b) SRAMs can hold data via a static charge, even with power off
c) The only difference is the terminal from which the data is removed—from the FET Drain or Source
d) DRAMs must be periodically refreshed
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Answer: d
Explanation: DRAMs must be periodically refreshed so that it can store the new information. DRAMs are slower compared to SRAMs as the access time for SRAM is less than that of DRAM.
Q-What type of memory is not directly addressable by the CPU and requires special software called EMS (expanded memory specification)?
a) Extended
b) Expanded
c) Base
d) Conventional
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Answer: b
Explanation: Expanded memory is not directly addressable by the CPU. Expanded memory is the additional memory which is incorporated beyond the parent memory limit of the processor.
Q-The Width of a processor’s data path is measured in bits. Which of the following are common data paths?
a) 8 bits
b) 12 bits
c) 16 bits
d) 32 bits
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Answer: a
Explanation: In generalised form, the data paths are of 8 bits. The data path, also known as data bus, is the channel through which the processor sends and receives data.
Q-Which of the following best describes EPROMs?
a) EPROMs can be programmed only once
b) EPROMs can be erased by UV
c) EPROMs can be erased by shorting all inputs to the ground
d) EPROMs can be erased electrically
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Answer: b
Explanation: EPROM (Erasable Programmable ROMs), the ROM is cleared by exposing it to UV radiation and also it’s a tedious process. Whereas, in EEPROM, the ROM can be cleared electrically and thus is less time consuming and more efficient.
Q-The MOS technology based semiconductor ROMs are classified into _____ categories.
a) 2
b) 3
c) 4
d) 5
…………
Answer: b
Explanation: The MOS technology based semiconductor ROMs are classified into three categories: Mask ROM, PROM,& EPROM. PROM stands for Programmable Read Only Memory in which the ROM can be externally programmed by the user. EPROM stands for Erasable Programmable Read Only Memory, where the ROM and be cleared and re-programmed.
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