Computer Basic Information
Binary numbers need more places for counting because:

They are always big numbers
0's and 1's have to be properly placed
Binary base is small
None of these
0's and 1's can be added in front of them

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Computer Basic Information
What is backup?

None of these
Protecting data by copying it from the original source to a different destination
Filtering old data from the new data
Accessing data on tape
Adding more components to your network

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