PPSC Computer Science Chapter 1 Basic Computer Knowledge Online Test With Answers

PPSC Computer Science Chapter 1 Basic Computer Knowledge Online Test

Sr. # Questions Answers Choice
1 Magnetic disks are the most popular medium for. Direct access Seuential access Both of above None of these
2 Tape speed is measure din Feet per second Inch per second Meter per second Centimeter per second
3 Which of the following is associated with error detector. Odd parity bit Even parity bit Both of the above None of above
4 The data recording format in most of the modern magnetic tape is 7-bit ASCII 7-bIt EBCDIC 8-bit ASCII 8-bit EBCDIC
5 Which statement is valid about magnetic tape. It is a plastic ribbon It is coated on both sides with iron oxide It can be erased and reused All of above
6 A storage area used to store data to a companies for the difference in speed at which the different units can handle data is. Memory Buffer Accumulator Address
7 Which of the following will happen when data is entered into a memory location. It will add to the content of the location It will change the address of the memory location It will erase the previous content It will not be fruitful if there is already some data at the location.
8 An output device that uses words or messages recorded on a magnetic medium to produce audio response is. Magnetic tape Voice response unit Voice recognition unit Voice band
9 Which printer is very commonly used for desktop publishing Laser printer Inkjet printer Daisywheel printer Dot matrix printer
10 Floppy disk which are made from flexible plastic material are also called. Hard disks High density disks Diskettes Templates
11 A compared to diskettes the hard disks are. More expensive More portable Less rigid Slowly accessed
12 A kind of serial Dot matrix printer that forms characters with magnetically charged ink sprayed dots is called. Laser printer Ink Jet printer Drum printer Chan printer
13 The two kinds of main memory are Primary and secondary Radom and Seuential ROM and RAM All of above
14 Dot-matrix is a type of Tape Printer Disk Bus
15 What is the name of the computer terminal which gives paper printout. Display screen Soft copy terminal Hard copy terminal Plotter
16 Regarding a VDU which statement is more correct. It is an output device it is an input divice It is a peripheral devices It is hardware item
17 Floppy disks which are made from flexible plastic material are also called. Hard disks High density disks Diskettes Templates
18 As computer to diskettes the hard disks are More expensive More portable Less rigit Slowly accessed
19 Before a disk drive can access any sector record a computer program has to provide the record's disk address What information does this address specify. Track number Sector number All of above
20 What is the number of read write heads in the drive for a 9 trac magnetic tape. 9 16 18 27
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