After several 'save' and 'delete' operations, there remain many scattered areas of data too small to be used productively. This describes?

The disk operating system will label three hard drives as?     

Which of the options labeled I to IV give two stages involved in booting?

I. Power On self test II. Loading of Operating System IIl. Loading of email IV. Power On Safe Mode

A bit as used in computing in digital communication is?      

Multiply 101\(_2\) by 11\(_2\)