Light pen is frequently used in
Explanation:
Computer Aided Design (correct)
Word Processing
Presentation
Spreadsheet
PC stands for which of the following
Explanation:
Personal Computer (correct)
Private computer
Public Computer
None of the above
Laptops are also known as
Explanation:
Mini computers
Micro computer
Notebook (correct)
Lapbook
All of the above
Which of the following is not a function of operating systems
Explanation:
Process management
File Management
Internet Server management (correct)
Memory Management
A cratridge is associated with
Explanation:
Mouse
Printer (correct)
Joystick
Touchscreen
A gate which is also known as inverter is
Explanation:
AND
NOT (correct)
OR
NAND
The memory that requires contant refreshing , to preserve the information is called
Explanation:
Static Memory
Dynamic memory (correct)
improved memory
None of these
Convert the decimal number 255 to its hexadecimal equivalent
Explanation:
FF (correct)
AF
10
1F
Can 16 a valid hexadecimal number
Explanation:
Yes (correct)
No
What is true about a Random Access Memory ?
Explanation:
Data can be accessed randomly (omitted)
Data can be read and written (omitted)
Data stays permanently written
Data is retained as long as the computer is powered (correct)
Convert the octal number 17 to its decimal equivalent
Explanation:
15 (correct)
16
20
None of theses
Device drivers are categorized under
Explanation:
System software (correct)
Application software
Utility software
Hardware
To prevent infection by a computer virus
Explanation:
Avoid visiting medical sites
Scan emails with attachments (correct)
Don't upgrade Operating system
All of the above
Which of the following is the administrative sction of the computer system
Explanation:
Input Unit
Output Unit
Central Processing Unit (correct)
Memory Unit
What kind of data can you send by E-mail ?
Explanation:
Audio
Video
Pictures
All of these (correct)
Which one allow two or more users to run programs at the same time
Explanation:
Multitasking
Multiuser (correct)
Multiprocessing
MultiCapable
Programming language closer to human language is
Explanation:
Assembly language
High-level language (correct)
machine language
None of these
Which of the following is most commonly used input device
Explanation:
OCR
Mouse (correct)
Joystick
Scanner
Which of the following bit represents a sign of a number in a computer system
Explanation:
MSB (correct)
LSB
USB
None of these
Which of the following is not a valid bus in a computer system
Explanation:
address bus
system bus
data bus
memory bus (correct)
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