Vacuum Tubes were used in which generation of Computers?
First Generation computers are characterized by the use of vacuum tubes. These vacuum tubes were used for calculation as well as storage and control. Later, magnetic tapes and magnetic drums were implemented as storage media. The first vacuum tube computer, ENIAC, was developed by US army ordinance to calculate ballistic firing tables in WWII. It had about 17000 vacuum tubes.
Select the number from among the given options that can replace the question mark (?) in the following table.
Find out which of the figures (1), (2), (3) and (4) can be formed from the pieces given in figure (X) .
In each of the following questions, find out which of the answer figures can be formed from the pieces given in the problem figure.