The primary purpose of an operating system is:
To allow people to use the computer,
To make the most efficient use of the computer hardware
To make computers easier to use
To keep systems programmers employed
Correct Answer :
B. To make the most efficient use of the computer hardware
Related Questions
Identify the distributed computing model from the following statement. In this model, the user's processes need not be migrated to the server machines for getting the work done by those machines.
Minicomputer model
Workstation model
Workstation-Server model
Processor pool model
What is dispatch latency?
The time taken by the dispatcher to stop one process and start another
The whole time taken by all processor
The time taken by the processor to write a file into disk
None of Above
_______________refers to a strategy where whenever a resource is requested, it is only granted if it cannot result in deadlock.
Deadlock Prevention
Livelock
Deadlock avoidance
none of these
Choose the correct statement from the following.
In computer terminology, variables are symbols which stand for some value.
An alternative method for executing the commands in the file backup is to make the file as directory.
The restricted shell gives more control to the system administrator and restricts the options of the user.
The decision making done by computer programs is in the form of conditional execution.
Underlined text, such as text and folder names is referred to as
Hyperlink
Menu
Source drive
None of these
A shared memory segment first needs to be allocated (create, using the__________ system call.
semget()
msgrcv()
shmget()
mknod()
Windows 2000 supports -------------- type of file system
NTFS
EFS
FEFS
EFFS
BSD stands for_____________________
Basic Software Division
Berkeley Software Distribution
British Software Distribution
Berkeley Software data
The Basic Input Output System (BIOS) resides in
RAM
ROM
The CPU
Memory Cache
A process is _________________
program in main memory
Program in cache memory
program in secondary storage
program in execution
When copying more than one file at a time, you must specify an existing directory as the ___________
Source
Sub directory
Destination.
Path name
______________ are popular way to improve application through parallelism.
Processes
Threads
Context switching
none of these
Which of the following is drop down list?
Combo box
List
Text area
None
The usual su command syntax is
su-pwd
su-pd
su - userID
Sue- ID
The Bankers algorithm is used
to prevent deadlock
to rectify deadlock
to detect deadlock
to slove deadlock
In_________________ model, when a process does a release access, the contents of all the modifications are not immediately sent to other nodes but they are sent only on demand.
Release Consistency Model
Lazy Release consistency model
Weak Consistency Model
Processor Consistency Model
Find out the characteristics of System-oriented names:
They are large integers or bit strings.
They are of the same size
Generally shorter than human-oriented names and are easy for manipulations like hashing, sorting and so on.
All A, B, C
The problem with logical dumping is ________________
very costly
very slow
human errors
all of these
Load balancing algorithms in ______________ class use the processor and process characteristics to allocate processes to nodes.
Static
Dynamic
Deterministic
Probabilistic
One of the wonderful things about UNIX is its ___________names.
Unlimited path
Unlimited directory
Limited path
Limited file
A sequence of instructions telling the computer what to do is called a_____________
program
language
translator
package
A process may create a new process by executing ___________system call.
init
fork
create
new
In Windows, start button is used to
Device setting
Run applications
All of above
Turn off the system
In case of good process migration mechanism, _____________ means failure of any node other than the one on which the process is running should not affect the execution of the process.
Robustness
Efficiency
Transparent
Interference
When you start up the computer the boot up storage at which the BIOS versions manufacturer and data are displayed on the monitor is called
Bootstrap
System configuration
Power on self test (POST)
Kernel loading
Process migration involves__________________
Selection of a process to be migrated
Selection of destination system or node
Actual transfer of the selected process to the destination system or node
All A, B, C
IPC stands for _________
Integrated parallel communication
Intermediate process call
Internal program call
Inter process communication
In ____________ location policies a random node is polled to check its state and the task is transferred if it will not be overloaded; polling is continued until a suitable node is found.
Threshold
Shortest
Bidding
Pairing
The Network Time Protocol is similar to _______________algorithm in that synchronization is also performed using time servers and an attempt is made to correct for communication latencies.
Banker's
Divide and conquer's
Cristians
Xdelta's
Taskbar is used for
Navigation program
Start a program
Switching between program
All of above