Q : The primary purpose of an operating system is ?
(A) To allow people to use the computer
(B) To make computers easier to use
(C) To keep systems programmers employed
(D) To make the most efficient use of the computer hardware
Correct Answer : D Explanation : Answer: D) To make the most efficient use of the computer hardware
Explanation: The primary purpose of an operating system is to make the most efficient use of the computer hardware.
Q : In computer short cut keys, F4 key is used to
(A) To display the items in the active list
(B) To display help
(C) To display system properties dialog box
(D) To display desktop
Correct Answer : A Explanation : Answer: A) To display the items in the active list
Explanation: To display the items in the active list.
Q : Who is the father of email ?
(A) Charles Babbage
(B) Ray Tomlinson
(C) Tim Berners Lee
(D) Paul Buchheit
Correct Answer : B Explanation : Answer: B) Ray Tomlinson
Explanation: Email inventor Ray Tomlinson dies at 74. Ray Tomlinson, who sent the first e-mail, has died.
Q : What is "Trend Micro" ?
(A) Name of an insect
(B) It is an electronic machine
(C) It is anti-virus software
(D) None
Correct Answer : C Explanation : Answer: C) It is anti-virus software
Explanation:
Q : What command is used to count the total number of lines, words, and characters contained in a file ?
(A) wc
(B) count p
(C) wcount
(D) countw
Correct Answer : A Explanation : Answer: A) wc
Explanation:
Q : How do you display current date and time in MS Excel ?
(A) Time ()
(B) Now ()
(C) Date ()
(D) Today ()
Correct Answer : B Explanation : Answer: B) Now ()
Explanation: To display current date and time in MS Excel, we use Now() method.
Q : The symbols used in an assembly language are called ?
(A) Assembler
(B) Mnemonics
(C) Codes
(D) All of the above
Correct Answer : B Explanation : Answer: B) Mnemonics
Explanation:
Q : Which of these is not a means of personal communication on the internet ?
(A) Instant messaging
(B) Chat
(C) Electronic mail
(D) Instanotes
Correct Answer : D Explanation : Answer: D) Instanotes
Explanation:
Q : The unit MIPS is used to measure the speed of a___.
(A) Disk drive
(B) Tape drive
(C) Printer
(D) Processor
Correct Answer : D Explanation : Answer: D) Processor
Explanation: MIPS refers millions instruction per sec and is used to measure the speed of Processor.
Q : Which memory is nonvolatile?
(A) Floppy discs
(B) Magnetic tape
(C) ROM
(D) All of the above
Correct Answer : D Explanation : Answer: D) All of the above
Explanation: A computer has two types of memory.
1. Non-volatile and
2. Volatile.
Volatile memory is computer memory that requires power to maintain the stored information.
* It is a temporary memeory which cannot contain information permanently.
Example :: RAM or Random Access Memory
Non-volatile memory is computer memory that can retain the stored information even when not powered.
* It is a permanent memory in which data is stored in permanently.
Examples :: Hard disc, ROM, Floppy discs, Magnetic tape,...