In computer science, what does "DOS" stand for?

What company developed a computer with the codename "Lisa" in the 1980's?

Where is Microsoft's headquarters?

Who was founder and chairman of America Online Corporation?

What is a technical term for the "brain" of the computer?

What does the file extension .TIFF stand for?

Which software company makes Excel?

Which company marketed the Amiga 1000 personal computer?

What does ISDN stand for?

What year did Bill Gates graduate from Harvard?

How many bytes are there in 4 kilobytes of memory?

What does the file extension .MPEG stand for?

In computer terminology, what does "ROM" stand for?