Answer:
optical
Explanation:
The earliest of these was the magnetic device. Computer systems began with magnetic storage in the form of tapes (yes, just like a cassette or video tape). These graduated to the hard disk drive and then to a floppy disk.
Answer:
A. Invention of microprocessor
Explanation:
The third generation of computer itself was based on the technology of integrated circuits (shorten as IC).
It lasted for about 6 years and was brought to an end with the advent of the fourth generation of computers which was based on microprocessors.
Hence, option A answers the question.
Cluster perhaps
is the answer
Server and device both are useful to object to connect to a network and share data with any other application.