Fill each gap with a suitable word. 1) British scientists invented a way of multiplying and dividing.
a) mechanical; b) electrical; c) optical

2) A new branch of mathematics,, was invented in England and Germany independently.
a) mechanics; b) arithmetics; c) calculus

3) A young American clerk invented a means of coding by punched cards.
a) letters; b) data; c) numbers

4) Soon punched cards were replaced by terminals.
a) printer; b) scanner; c) keyboard

5) Mark I was the first computer that could solve mathematical problems.
a) analog; b) digital; c) mechanical

6) J. von Neumann simplified his computer by storing information in a code.
a) analytical; b) numerical; c) binary

7) Vacuum tubes could control and electric signals.
a) calculate; b) amplify; c) generate

8) The first generation computers were and often burned out.
a) uncomfortable; b) uncommunicative; c) unreliable

9) Computers of the second generation used which reduced computational time greatly.
a) transistors; b) integrated circuits; c) vacuum tubes

10) Due to the development of the fourth generation computers became possible.
a) microelectronics; b) miniaturization; c) microminiaturization