Railway Science (Computer – Memory)

Total Questions: 15

1. Which of the following types of read only memory can be erased by exposing it to an electrical charge and can be reprogrammed ? [RRB NTPC CBT - II (12/06/2022) Shift 2]

Correct Answer: (a) EEPROM
Solution:

EEPROM (Electrically Erasable Programmable Read-only memory) - It is usually used to store small amounts of data in computing and other electronic devices. ROM (read only memory), is a memory device or storage medium that stores information permanently.
PROM (Programmable Read -Only Memory) is a memory chip on which information can be composed as it were once. EPROM (erasable programmable read-only memory) is memory that does not lose its data when the power supply is cut off.

2. Which of the following statements is true ? [RRB NTPC CBT - II (13/06/2022) Shift 2]

Correct Answer: (a) Both SRAM and DRAM are random access memory.
Solution:

SRAM (Static Random Access Memory) - It stores information as long as the power is supplied. DRAM (Dynamic Random Access Memory) - It stores information as long as the power is supplied or a few milliseconds when power is switched off.

3. The process of taking out stored results out of physical memory of Computers is known as. [RRB NTPC CBT - I (28/12/2020) Evening]

Correct Answer: (d) output process
Solution:

The output is the result generated after the processing of data. The output may be in the form of text, sound, image, document, etc

4. Which of the following is NOT a part of auxiliary memories in a Computer system ? [RRB NTPC CBT - I (28/12/2020) Evening]

Correct Answer: (c) PROM
Solution:

An Auxiliary memory (secondary memory) is referred to as the lowest-cost, highest -space, and slowest-approach storage in a computer system.

5. In the context of computers, the time taken to receive data from a storage device or to obtain data from a peripheral unit is known as ______. [RRB NTPC CBT - I (11/01/2021) Morning]

Correct Answer: (c) Access time
Solution:

Memory access time is how long it takes for a character in memory to be transferred to or from the CPU. Down-time is any period when the computer on which a system is based is not operating.
Time-sharing is the distribution of a computing resource to many users via multiprogramming or multitasking. Time slice : It is the time frame for which a process is allotted to run in preemptive multitasking CPU.

6. Which type of storage device is a Hard disc ? [RRB NTPC CBT - I (19/01/2021) Morning]

Correct Answer: (c) Secondary storage
Solution:

Examples of Secondary Storage devices - Magnetic storage devices, such as hard disk drives. Optical storage devices, such as CD, DVD and Blu-ray discs. Solid state storage devices, such as solid state drives and USB memory sticks.

7. Non-volatile memory is a type of computer memory that can retain stored information even when the computer is: [RRB NTPC CBT - I (25/01/2021) Morning]

Correct Answer: (a) not powered
Solution:

Examples of non - volatile memory: Read-only memory ,flash memory, most types of magnetic computer storage devices (e.g. hard disks, floppy disks and magnetic tape), optical discs, and early computer storage methods such as paper tape and punched cards.

8. Which of the following is NOT a property of ROM (Read only Memory) ? [RRB NTPC CBT - I (30/01/2021) Evening]

Correct Answer: (c) It is known as volatile memory.
Solution:

Non-volatile memory is a type of computer memory that can retain stored information even after power is removed. Examples - ROM, EPROM, EEPROM etc.

9. What is the location of RAM in computers? [RRB NTPC CBT - I (31/01/2021) Morning]

Correct Answer: (b) Motherboard
Solution:

RAM (Random Access Memory) - It is physically small and stored in microchips. RAM is usually stored outside the CPU in separate chips.

10. Which is the primary memory of a computer ? [RRB NTPC CBT - I (03/03/2021) Morning]

Correct Answer: (a) RAM
Solution:

It is the primary memory of a computer. It allows a processor to access running execution applications and services that are temporarily stored in a specific memory location.