Pressing the Delete key deletes the character to the left of the insertion point.

For what is the Atanasoft–Berry Computer best known?

a. It was the first computer to use vacuum tubes instead of mechanical switches. b. It was the first computer to use the binary system. c. It was the first computer to incorporate a magnetic tape system. d. It was the first computer used as a mechanical calculator.

Words that have a special meaning and may be used only for their intended purpose are known as

a. operators b. programmer defined words c. key words d. syntax e. None of these