What is the difference between local and global variables?
Local variables are defined within a subroutine. Their scope/visibility ends when the cursor leaves the subroutine.
Global variables on the other hand are variables that exist outside of all the subroutines and functions, and are available to all of them.
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All answers ▸How to manually convert a number from decimal into binary?
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.
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Describe two's complement.