Q998
Which of the following is directry controlled from a keyboard.
A.
Card punch
AnswerB.
Punched paper tape
C.
Magnetic disk
D.
Magnetic tape
E.
None of the above
Answer: Option A
Solution
Answer: Option A
Solution:
Card punch is directry controlled from a keyboard. Punch cards (or "punched cards"), also known as Hollerith cards or IBM cards, are paper cards where holes may be punched by hand or machine to represent computer data and instructions. They were a widely-used means of inputting data into early computers.