51. The memory which is programmed at the time it is manufactured
PRam
ram
prom
eprom
Answer: 3. prom
Explanation:
The PROM is programmed at the time of its manufacturing.
A programmable read-only memory (PROM) is a form of digital memory where the contents can be changed once after manufacturing of the device. The data is then permanent and cannot be changed. It is one type of read-only memory (ROM).
52. Which of the following memory medium is not used as main memory system?
magnetic core
semiconductor
magnetic tape
both a and b
Answer: 3. magnetic tape
Explanation:
A magnetic tape memory is not used as a main memory system.
Magnetic tape data storage is a system for storing digital information on magnetic tape using digital recording. Modern magnetic tape is most commonly packaged in cartridges and cassettes. The device that performs the writing or reading of data is a tape drive.
53. Registers, which are partially visible to users and used to hold conditional, are known as
pc
memory address registers
general-purpose register
flags
Answer: 4. flags
Explanation:
Flag registers are partially visible to the users and they hold the condition codes, which are the bits set by the CPU hardware as a result of operations. For example, an arithmetic operation may produce a positive, negative, zero, or overflow result.
The result of the operation is stored in the flag register, and the condition of the result, which can be in the form of a code, is also set.
54. One of the main features that distinguish microprocessors from micro-computers is
words are usually larger in microprocessors
words are shorter in microprocessors
the microprocessor does not contain i/o devices
exactly the same as the machine cycle time
Answer: 3. the microprocessor does not contain i/o devices
Explanation:
One of the main features that distinguish microprocessors from microcomputers is Microprocessor does not contain I/O devices.
I/O devices are the pieces of hardware used by a human (or other systems) to communicate with a computer.
The CPU and its supporting circuitry may provide memory-mapped I/O that is used in low-level computer programming, such as in the implementation of device drivers, or may provide access to I/O channels.
55. The first microprocessor built by the Intel Corporation was called
8008
8080
4004
8800
Answer: 3. 4004
Explanation:
The first Intel® 4004 microprocessor was produced on two-inch wafers compared to the 12-inch wafers commonly used for today’s products. The Intel 4004 microprocessor is unique in that it is one of the smallest microprocessor designs that ever went into commercial production.
56. An integrated circuit is
a complicated circuit
an integrating device
much costlier than a single transistor
fabricated on a tiny silicon chip
Answer:4. fabricated on a tiny silicon chip
Explanation:
An integrated circuit is fabricated on a tiny silicon chip.
Integrated circuit (IC) An integrated circuit (IC), sometimes called a chip or microchip, is a semiconductor wafer on which thousands or millions of tiny resistors, capacitors, and transistors are fabricated. An IC can function as an amplifier, oscillator, timer, counter, computer memory, or microprocessor.
57. Most important advantage of an IC is its
easy replacement in case of circuit failure
extremely high reliability
reduced cost
All of the above
Answer: 4. All of the above
Explanation:
The advantages of ICs :
(i) Extremely small in size
(ii) Low power consumption
(iii) Extremely high reliability
(iv) Reduced cost
(v) Very small weight
(vi) Easy replacement.
58. Which of the following items are examples of storage devices?
floppy / hard disks
cd-ROMs
tape devices
all of the above
Answer: 4. All of the above
Explanation:
Examples of storage devices are
Hard Disk Drive (HDD)
Solid State Drive.
Random Access Memory (RAM)
CD, DVD, and Blu-ray Discs.
DVD-RAM.
ROM.
USB Flash Memory.
59. Which is the type of memory for information that does not change on your computer?
ram
rom
eram
rw / ram
Answer: 2. rom
Explanation:
In ROM information that does not change on your computer.
ROM is an acronym for Read-Only Memory. It refers to computer memory chips containing permanent or semi-permanent data. Unlike RAM, ROM is non-volatile; even after you turn off your computer, the contents of ROM will remain. Almost every computer comes with a small amount of ROM containing the boot firmware.
60. Before a disk can be used to store data. It must be
formatted
reformatted
addressed
none of the above
Answer: 1. formatted
Explanation:
Before a disk can be used to store data. It must be formatted.
