was abacus the first computer?

when and who invented the first computer mouse ?

was the world second computer UNIVAC

Steve jobs and steve wozniak are the founder of microsoft.

This invention was 1,000 times faster than any machine. It was so big that it could fill a house Name this invention .

The invention of this product replaced vacuum tubes and made computers much smaller and faster.

This person created first computer program.

This person is often called the inventor of the modern computer.

This man is known for starting the company Microsoft back in the year 1975.