Computer Knowledge 23

1. Which of the following mathematically based computer language is used for scientific purpose?
A. WINDOWS
B. Fortran.
C. UNIX
D. COBOL




2. Which of the follwoing opearating system is based on command based interface?
A. DOS (Disk Operating System).
B. Windows.
C. Apple.
D. JAVA.




3. Which of the following command is used in DOS to display the label of disk?
A. SEARCH
B. GET Label
C. Label
D. Content




4. Which of the following constraints in a database prevent us for duplicate entry?
A. Secondary Key.
B. Primary Key.
C. Foreign Key.
D. Tuple.




5. Which of the following is a special purpose program?
A. Microsoft Office.
B. Device Drivers.
C. All the parts of a Operating System.
D. Secondary storage units only.




6. Magnetic tape is what kind of medium?
A. Random Access.
B. Sequential Access.
C. Quick Access.
D. All of these.




7. To share peripheral equipments between the computers of a cyber cafe which of the follwing technique would be most preferable one?
A. Visit a server online.
B. Local Area Network.
C. E-mail system.
D. Host all computers with same IP.




8. Which of the following medium helps information to travel through all the components of a system board?
A. Hard Disk.
B. Buses.
C. RAM.
D. ROM.




9. Which of the following software store data in row and column format?
A. Word.
B. Paint.
C. Spreadsheet.
D. DOS.




10. Which of the following is a graphics format that is commonly used on the WEB?
A. exe
B. txt
C. GIF
D. pdf

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