What are the characteristics of 1st generation computers

Used vacuum tubes for circuitry.

Electron emitting metal in vacuum tubes burned out easily.

Used magnetic drums for memory.

Were huge, slow, expensive, and many times undependable.

Were expensive to operate.

Were power hungry.

Explanation:

Explanation:

1)First generation computers used vacuum tubes.

2)Speed was slow and memory was very small.

3)They were huge in size taking up entire room.

4)They consumed a lot of power and generated so much heat.

5)Machine language was used in these computers.

6)Output was obtained on printouts through electric typewriter.

7)Input was based on punched cards.

8)First generation computers were expensive and unreliable.