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Computers use virtual memory, can you explain what this is and how it is used?

Virtual memory is within the hard disk of the computer. It functions in the same way as RAM, but storing open applications when there is not enough RAM. It has a slower access time than the main memory and i...
TD
3079 Views

How does the Stack data type work?

A Stack is an abstract data type (ADT), this means its a concept rather than an implementation. I will explain the Stack ADT using the idea of a pile of plates. The pile is the Stack. With a pile of plates y...
SO
Answered by Sam O. • Computing tutor
1913 Views

A computer stores floating point numbers of size 1 byte, with 3 bits for the mantissa and 5 bits for the exponent. State what the effects would be on the stored numbers if instead 5 bits were used for the mantissa and 3 bits were used for the exponent.

By increasing the size of the mantissa, the accuracy of the stored numbers would increase. Decreasing the size of the exponent, however, would reduce the range of numbers that could be stored. The overall am...
TD
6401 Views

State the denary representation of the binary number 10010111

Short answer: 151 Long answer: Students will be used to thinking in denary numbers so I would talk about what denary ( or base 10 ) actually means. Basically each position is multiplied by 10 to the power of...
JA
Answered by Joseph A. • Computing tutor
5434 Views

How to represent a negative decimal number using 8-bit binary two's complement ?

First of all we need to convert our decimal negative number into binary without taking the sign into account. Then we have to apply some rules to convert positive binary into a negative one. To do so we have...
HI
Answered by Hassan I. • Computing tutor
42622 Views