“ instructions that work together to coordinate all the computers hardware

Software.

Explanation:

Software is a instruction book on how to coordinate all computer hardware in one simple program.

E.g A video game is software that uses harddrive space, combined with processer power and GPU power and Ram Memory to help maintain parts of the game as a constant.

to change your username, you must:

1) make sure what the username you want to change to is allowed in this community

2) contact a administrator (for example, jaysl)

3) through pm, tell the admin what you want to change to

4) if the username is allowed, it will be changed in a matter of seconds (minutes at most)

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this seems to be in the wrong category. but i'll take some free points my dude

posting this in wrong category will result in people seeing it who won't know the answer.