Computer Knowledge bank Exam

1.A process known as ____________ is used by large retailers to study trends.
    A. data mining      B. data selection    C. POS     D. data conversion
    Ans : A 
2. ____________terminals (formerly known as cash registers) are often connected to complex inventory and sales computer systems.
A. Data      B. Point-of-sale (POS)        C. Sales     D. Query
Ans : B
3.The ability to recover and read deleted or damaged files from a criminal’s computer is an example of a law enforcement specialty called:
A. robotics.   B. simulation.   C. computer forensics.   D. animation.
Ans : C
 4. Technology no longer protected by copyright, available to everyone, is considered to be:
A. proprietary.  B. open.    C. experimental.    D In the public domain.
Ans : A
5. The name for the way that computers manipulate data into information is called:
A. programming.    B. processing.    C. storing.    D. organizing.
Ans : B
6.Computers gather data, which means that they allow users to ____________ data.
A. edit    B. input    C. output      D. store
Ans : B
7.In the binary language each letter of the alphabet, each number and each special character is made up of a unique combination of:
A. eight bytes.   B. eight kilobytes.   C. eight characters.   D. eight bits.
Ans : D
8.A ____________ is approximately one billion bytes.
A. kilobyte    B. bit     C. gigabyte    D. megabyte
Ans : C
 9. A ____________ is approximately a million bytes.
A. gigabyte    B. kilobyte    C. megabyte    D. terabyte
Ans : C
10 . Which of the following is an example of an input device?
A. scanner   B. speaker     C.disk    D. printer
Ans : A