Computer Memory Questions

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71.

A memory that holds micro programs is

A

Core memory

B

ROM

C

RAM

D

Control memory

E

None of the above

Correct Answer: B

ROM stands for Read Only Memory. The memory from which we can only read but cannot write on it. This type of memory is non-volatile. The information is stored permanently in such memories during manufacture. A ROM stores such instructions that are required to start a computer.

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72.

A device invented by Dr. Bobeck in 1966, for mass storage of data is

A

Punched paper tape

B

Magnetic bubble storage

C

Magnetic tape

D

Magnetic disk

E

None of the above

Correct Answer: B

Magnetic bubble storage : Bubble memory is a type of non-volatile computer memory that uses a thin film of a magnetic material to hold small magnetized areas, known as bubbles or domains, each storing one bit of data. The material is arranged to form a series of parallel tracks that the bubbles can move along under the action of an external magnetic field.

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73.

RAM is used as a short memory because it is

A

Volatile

B

Has small capacity

C

Is very expensive

D

Is programmable

E

None of the above

Correct Answer: A

Volatile memory : Volatile memory, in contrast to non-volatile memory, is computer memory that requires power to maintain the stored information; it retains its contents while powered on but when the power is interrupted, the stored data is quickly lost. Volatile memory has several uses including as main memory.

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74.

As compared to diskettes, the hard disks are

A

more expensive

B

more portable

C

less rigid

D

slowly accessed

E

None of the above

Correct Answer: A

As compared to diskettes, the hard disks are more expensive.

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75.

Which access method is used for obtaining a record from a cassette tape

A

direct

B

sequential

C

random

D

All of the above

E

None of the above

Correct Answer: B

Sequential method is used for obtaining a record from a cassette tape.

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76.

The most important advantage of a video disk is

A

Compactness

B

Potential capacity

C

Durability

D

Cost effectiveness

E

None of the above

Correct Answer: B

None.

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77.

The process of entering data into a storage location

A

adds to the contents of the location

B

cause variation in its address number

C

is known as a readout operation

D

is destructive of previous contents

E

None of the above

Correct Answer: D

The process of entering data into a storage location is destructive of previous contents

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78.

Backing storage is so named because it

A

is always kept at the back of the CPU

B

is slow and backward

C

backs up the computer

D

lags behind the main memory

E

None of the above

Correct Answer: C

In information technology, a backup, or the process of backing up, refers to the copying into an archive file of computer data so it may be used to restore the original after a data loss event.

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79.

Which of the following is the user programmed semiconductor memory?

A

SRAM

B

DRAM

C

EPROM

D

All of the above

E

None of the above

Correct Answer: C

Semiconductor memory : Semiconductor memory is a digital electronic data storage device, often used as computer memory, implemented with semiconductor electronic devices on an integrated circuit (IC). EPROM : EPROM (erasable programmable read-only memory) is programmable read-only memory (programmable ROM) that can be erased and re-used. Erasure is caused by shining an intense ultraviolet light through a window that is designed into the memory chip.

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80.

The two kinds of main Memory are:

A

Primary and secondary

B

Random and sequential

C

ROM and RAM

D

All of the above

E

None of the above

Correct Answer: C

ROM : Read-only memory is a type of non-volatile memory used in computers and other electronic devices. Data stored in ROM can only be modified slowly, with difficulty, or not at all, so it is mainly used to store firmware or application software in plug-in cartridges. RAM : Random-access memory is a form of computer data storage that stores data and machine code currently being used. A random-access memory device allows data items to be read or written in almost the same amount of time irrespective of the physical location of data inside the memory.

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