When was the first operating system developed ? 1951 1950 1948 1949 None Restarting a running computer is called ? Cold boot Normal boot Warm boot Cool boot None Who is called a supervisor of computer activity ? Memory Control Unit Operating System 1/0 Devices None Which software helps the user to do his/her work ? Utility System Application None of these None Turn on the computer for first time on a day is called a ? Hot boot Cold boot Warm boot Cool boot None Time's up Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
