What is a main characteristic of computer in the following options?

Main electronic part in first-generation computer was-

Which one is not a type of computer on the basis of size-

......... is not a micro computer-

At first punched card was used by-

The great contribution in the development of computer was by-

Great contributor in development of blueprint of rhythmical computer was-

Modern computer was developed in-

Who developed integrated chip?

Which material is layered at magnetic disk?