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31
A factor which would strongly influence a businessperson to adopt a computer is its:
Discuss
Answer & Solution
Answer: Option D
Solution:
A factor which would strongly influence a businessperson to adopt a computer is its Accuracy, Reliability, Speed and all of the above.
32
The most common input device used today is
Discuss
Answer & Solution
Answer: Option E
Solution:
Keyboard is the most common input device of a Computer System. The keyboard resembles a typewriter. Modern Keyboards have more than just the letter and numeric keys. They have multimedia keys for volume control, Play/Pause videos etc.
33
What is the name of the temporary data storage area between a peripheral device and the CPU which compensates for the difference between their speeds?
Discuss
Answer & Solution
Answer: Option B
Solution:
Buffer is used to compensate for difference in speed between two processes that exchange or use data. Cache is a smaller and fastest memory component in the computer.
34
Which of the following is the fastest?
Discuss
Answer & Solution
Answer: Option A
Solution:
Registers are the fastest means of access for CPU. Registers are the small memory locations which are present closest to the CPU.
35
In which year were chips used inside the computer for the first time?
Discuss
Answer & Solution
Answer: Option B
Solution:
In which year were chips used inside the computer for the first time 1975. Most have one chip, however one chip may have several cores which can run several concurrent processes or more in a hyperthreaded manner.
36
The invention of the slide rule is attributed to
Discuss
Answer & Solution
Answer: Option B
Solution:
The Reverend William Oughtred and others developed the slide rule in the 17th century based on the emerging work on logarithms by John Napier. Before the advent of the electronic calculator, it was the most commonly used calculation tool in science and engineering.
37
The control unit of a microprocessor
Discuss
Answer & Solution
Answer: Option E
Solution:
The control unit is a component of a computer's central processing unit (CPU) that directs operation of the processor. It tells the computer's memory, arithmetic/logic unit and input and output devices how to respond to a program's instructions.
38
A flat-bed plotter uses a pen which moves in two directions across a piece of paper fixed on a flat-bed. Can you tell who controls the movements of this pen?
Discuss
Answer & Solution
Answer: Option C
Solution:
A flat-bed plotter uses a pen which moves in two directions across a piece of paper fixed on a flat-bed. Can you tell who controls the movements of this pen in film card.
39
The desirable characteristic(s) of a memory system is (are)
Discuss
Answer & Solution
Answer: Option D
Solution:
The desirable characteristic(s) of a memory system is (are) Speed and reliability, Low power consumption and Durability and compactness. Low power consumption means it will consume low power when operating, ie, it will draw low power to operate.
40
The CPU chip used in a computer is partially made out of:
Discuss
Answer & Solution
Answer: Option D
Solution:
A computer chip needs to be built out of a semiconducting material, and most of these chips are indeed built with silicon even though there are other possible materials. The first silicon transistor was created in the 1950's. Transistors can also be made from many other materials.