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The numbers 6B and 12 are displayed in hexadecimal form. Convert them into binary form and perform binary addition to find the sum. Convert your answer back into hexadecimal. Show your workings.

The first step is to work out what 6B and 12 are in binary. Starting with 6B, we need to find a four-bit representation of both 6 and B. 6, converts straight to its binary form, simply by adding 1s...

BC
Answered by Ben C. Computing tutor
3199 Views

Explain why it is important to check the email address with JavaScript and again when it reaches the server.

It is important to check the email address with JavaScript first on the client-side because it is quicker than the server and you don't need to refresh any pages (assuming AJAX is not used). Additionally,...

MB
Answered by Matthew B. Computing tutor
9888 Views

Describe a difference between an array and a linked list.

An array has a fixed data size and cannot hold more elements than said size, whereas a linked list can hold different numbers of elements.

MB
Answered by Matthew B. Computing tutor
2094 Views

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 u...

PG
Answered by Paul G. Computing tutor
1657 Views

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 ...

CH
Answered by Cameron H. Computing tutor
6962 Views

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