Question

1. The large and powerful computers which are used in air-conditioned rooms are called (a) Mainframe computers (b) microcomputers (c) Minicomputers (d) Supercomputers.​

Answer 1

Answer:
Mainframe computers.
Step-by-step explanation:
"Mainframe computers occupy specially wired, air-conditioned rooms. Although not nearly as powerful as supercomputers, mainframe computers are capable of great processing speeds and data storage. For example, insurance companies use mainframes to process information about millions of policyholders."