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General Science ➤ Computer ➤ 2
Question 11
Q11.  Which of the following is "built in memory" in computer?
 

Answer :  ROM


Read-only memory (ROM) 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 (software that is closely tied to specific hardware, and unlikely to need frequent updates) or application software in plug-in cartridges.
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Question 12
Q12.  How many characters can be entered in a single command line.
 

Answer :  127


No Explanation !!
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Question 13
Q13.  How many function keys are available in the modern keyboard?
 

Answer :  12


No Explanation !!
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Question 14
Q14.  A storage area used to store data to a compensate for the difference in speed at which the different units can handle data is __________ .
 

Answer :  Buffer


A data buffer (or just buffer) is a region of a physical memory storage used to temporarily store data while it is being moved from one place to another. Typically, the data is stored in a buffer as it is retrieved from an input device (such as a microphone) or just before it is sent to an output device (such as speakers).

A majority of buffers are implemented in software, which typically use the faster RAM to store temporary data, due to the much faster access time compared with hard disk drives. Buffers are typically used when there is a difference between the rate at which data is received and the rate at which it can be processed, or in the case that these rates are variable, for example in a printer spooler or in online video streaming.
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Question 15
Q15.  Which of the following number system was used by ENIAC?
 

Answer :  Decimal Number System


ENIAC ( Electronic Numerical Integrator and Computer) was amongst the earliest electronic general-purpose computers made. It was Turing-complete, digital, and could solve "a large class of numerical problems" through reprogramming. Decimal Number System was used by ENIAC.
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