21. The main electronic component used in first generation computers was
A) Transistors
B) Vacuum Tubes and Valves
C) Integrated Circuits
D) None of above
Ans : B (Vacuum Tubes and Valves)
22. A dumb terminal has
A) an embedded microprocessor
B) extensive memory
C) independent processing capability
D) a keyboard and screen
Ans : D ( a keyboard and screen )
23.One millisecond is
A) 1 second
B) 10th of a seconds
C) 1000th of a seconds
D) 10000th of a seconds
Ans : C ( 1000th of a seconds )
24. The output quality of a printer is measured by
A) Dot per sq. inch
B) Dot per inch
C) Dots printed per unit time
D) All of the above
Ans : B ( Dot per inch )
25. Which of the following was a special purpose computer?
A) ABC
B) ENIAC
C) EDVAC
D) All of the above
Ans : A ( ABC )
26. What was the computer invented by Attanasoff and Clifford?
A) Mark I
B) ABC
C) Z3
D) None of above
Ans : B ( ABC )
27. Which of the following storage devices can store maximum amount of data?
A) Floppy Disk
B) Hard Disk
C) Compact Disk
D) Magneto Optic Disk
Ans : B ( Hard Disk )
28. Which computer was considered the first electronic computer until 1973 when court invalidated the patent?
A) ENIAC
0B) MARK I
C) Z3
D) ABC
Ans : A ( ENIAK)
29. A physical connection between the microprocessor memory and other parts of the microcomputer is known as
A) Path
B) Address bus
C) Route
D) All of the above
Ans : B ( Address bus )
30. High density double sided floppy disks could store of data
A) 1.40 MB
B) 1.44 GB
C) 1.40 GB
D) 1.44 MB
Ans : D ( 1.44MB )