Domestic data entry operator 250 to 300 50 mcqs

1.For each instructions of program in memory the CPU goes through a

• Decode - fetch - execute sequence

• Execute - store - decode sequence

• Fetch - decode - execute sequence

• Fetch - execute - decode sequence

2.Which of the following is the ascending order of data hierarchy

• Bit - byte - record - field - data base - file

• Bit - byte - field - record - file - database

• Bit - byte - file - field - record - database

• Bit - record - byte - field - file - database

3.A microcomputer consists of at least an input unit, an output unit, microprocessor unit and a

• Stabilizer

• Memory unit

• Printer

• Network

4.Magnetic tape can serve as

• Input media

• Output media

• Secondary storage media

• All of the above

5.Super computers are mainly useful for

• Mathematical intensive scientific applications

• Data-retrieval operations

• Input-output intensive processing

  
  

• All of the above

6.Which of the following storage is volatile?

• Semiconductor memory

• Floppy disk

• CD-ROM

• Core memory

7.RAM chips

• Allow the computer to store data electronically

• Store data indefinitely unless you delete it

• Are secondary memory

• All of the above

8.EEPROM is

• Easily erasable

• Non-erasable

• Effectively erasable

• Electrically erasable

9.Multiprocessing

• Makes the operating system simpler

• Allows multiple processes to run simultaneously

• Is completely understood by all major computer vendors

• Allows the same computer to have multiple processors

10.How many units in a single bus structure will communicate at a time

• 1

• 2

• 3

• 14