26. Conversion of hexadecimal number 1D7F16 to a decimal number is

A. 755110
B. 877110
C. 555710
D. 778110
E. None of the above

27. Microfilm reader is a

A. OCR device
B. COM device
C. MICR device
D. None of the above
E. All of the above

28. In magnetic disks, data is organized on the platter in a concentric sets of rings called

A. sector
B. track
C. head
D. block
E. None of the above

29. The data recording area between the blank gaps on magnetic tape is called a/ an:

A. Record
B. Block
C. Field
D. Database
E. None of the above

30. Personal computers use a number of chips mounted on a main circuit board. What is the common name for such boards?

A. Daughterboard
B. Motherboard
C. Fatherboard
D. Breadboard
E. None of the above