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One member of a chess club sends a text file saved in Unicode. What meant by the term "Unicode" and why might this be necessary?

Computers represent everything as binary numbers. For a computer, there is not much difference between a movie and a book - both of them are a long stream of binary digits. The difference is the way the user...
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Answered by Paul G. • Computing tutor
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Why would you use Assembly Language instead of a normal programming language?

Although assembly language is much more difficult to program in, it runs much faster and takes up less storage space. You would generally use it if you need something to happen very very quickly, like in a s...
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Answered by Cameron H. • Computing tutor
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Basic Conversions (Binary, Hexadecimal, etc)

1. Convert the hexidecimal number D6 to decimal Since it is base-16, we multiply the first digit (6) by 16^0 - giving us 6 We then multiple the second digit (D - which equates to 13) by 16^1 - giving us 208 ...
CJ
Answered by Calum J. • Computing tutor
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Express the number 208 as a) an 8-bit binary number b) an octal string c) a hexadecimal string

Number conversions are a staple of both A-Level and GCSE computing papers. a) Expressing as a binary number is the hardest part of a conversion. Octal and hexadecimal can all come after easily. To express as...
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Answered by Adam M. • Computing tutor
5680 Views

How to manually convert a number from decimal into binary?

Decimal and binary are two positional systems which essentially means that we write the number as a sum of digits multiplied by powers of a base . For instance, 142 actually means 10^2 * 1 + 10^1 * 4 + 10^0 ...
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Answered by Brian C. • Computing tutor
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