WorksheetsWhat is OS?
Total questions: 40
Worksheet time: 20mins
Which of the following Operating System does not implement multitasking truly?
Windows XP
Windows 98
Windows NT
MS DOS
Which is the layer of a computer system between the hardware and the user program?
System environment
None
Operating environment
Operating system
Which runs on computer hardware and serve as platform for other software to run on?
All
Application Software
Operating System
System Software
shares characteristics with both hardware and software.
Software
None
Operating system
Data
Which is the first program run on a computer when the computer boots up?
System software
Operating system
System operations
None
The primary purpose of an operating system is:
To make computers easier to use.
To make the most efficient use of computer hardware.
To allow people to use the computer.
To keep systems programmers employed.
______ is used in an operating system to separate mechanism from policy
Multi level implementation
Single level implementation
Two level implementation
None
The operating system creates _____ from the physical computer.
Virtual space
Virtual computers
None
Virtual device
Which is built directly on the hardware?
Database System
Application Software
Operating System
Computer Environment
Multi programming systems:
Are used only one large mainframe computers.
Are easier to develop than single programming systems.
Execute more jobs in the same time period.
Execute each job faster.
The smallest part of a digital picture is called a ___________.
Byte
Gigabyte
Bit
Pixel
Fetch receives the data from the memory/software
True
False
A _________ is the smallest unit of digital information.
Pixel
Bit
Byte
Centimeter
Computers think like a human brain.
True
False
A binary code is made up of ___________________.
1s and 2s
0s and 2s
1s and 4s
0s and 1s
RAM is a type of ____________________________.
Input
Output
Microprocessor
Memory
Function of running and loading programs by use of peripherals is function of
operating system
inquiry system
dump programs
function system
Several programs run at same time and storage is shared especially in
dump computers
microcomputers
mainframe computers
Inquiry computers
Which of the following is/are system resource?
Processor
Memory
I/O devices
All of the above
Time sharing is an extension of:
Switching
Time slicing
Multi programming
All of the above
A program loaded into memory and executing is called?
Program
Running program
Process
Running process
A timed shared operating system uses to provide each user with a small portion of time-shared computer:
CPU scheduling
Multiprogramming
Both a and b
None
he main advantage of virtual memory is that it enables users to run programs that are:
Smaller than actual physical memory
Larger than actual physical memory
Smaller than actual logical memory
Larger than actual logical memory
Multiprogramming:
Minimize CPU utilization
Maximize CPU utilization
Decrease CPU process time
Increase process time
Which is/are an important aspect(s) of an operating system?
Multi-program
Error checking
Defregmentation
All of the above
Which of the following is the most important computer
resource Hardware
Hard disk
Processor CPU
Power supply
It creates link between user and computer system
Operating System
Device driver
Utility software
Image viewer
A Operating System that allows two or more CPUs running programs at the same time is
Single Tasking OS
Multi-tasking OS
Multi-processing OS
Multi-processor OS
single user Operating System that allows only one user to run one program at a time is called
Single Tasking OS
Multi-tasking OS
Single Processing OS
Multi-processing OS
An example of open sources Operating System
Windows XP
MAC OS
OS/2
Linux
Which of the following is/are main function(s) of an Operating System?
User interface
Memory management
Scheduling
All of the above
An OS is
A system service provider to the application programs
A collection of programs that manage hardware resources
A link to interface the hardware and application programs
All of the above
DOS has _____ based interface
Operating System
Character
Utility
GUI
GUI means
General Universal Interchange
General User Instructions
Graphics User Interface
Graphical User Interface
Unix is an e example of _______ Operating System
Single user
Multi user
Time sharing
Both b and c
The first complete Operating System with improved GUI features
Windows 3.0
Windows 3.1
Windows 95
Windows NT
MAC Operating System belongs to
Microsoft Corporation
Apple Computer Co
IBM
None
Which of the following error will be handle by the operating system?
Lack of paper in printer tray
Power failure
Network connection failure
All of the above
CLI means
The user can change the appearance of the CLI
CLI is more user-friendly
CLI is more advanced and powerful.
CLI is not much flexible.
GUI is slower but the CLI is fast.
True
False
