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What is a shell?
A shell is an interactive user interface to an operating system services that permits an user to enter commands as character strings or by a graphical user interface. The shell changes them to system calls to the OS or forks off a process to execute the command. System call results and other information from the OS are presented to the user through an interactive interface.
Visibility. Controls should be clearly visible, so users can see the controls that are available to them. Visual feedback should also be clearly visible, so users can understand wh
Information Gain: Now next here instantly return to the problem of trying to determine the best attribute to choose for a particular node in a tree. As in the following measur
There are innumerable caveats to this answer, but basically any Webpage containing a form will need a CGI script or program to process the form inputs.
A Canvas object gives access to a Graphics object by its paint() method.
Illustrate about 8259 8259A adds 8 vectored priority encoded interrupts to the microprocessor. We can expand it to 64 interrupt requests by using one master 8259A and 8 slave
Which scheduling policy is most suitable for a time-shared operating system? Ans. Round-Robin scheduling policy is most appropriate for a time-shared operating system.
Q. Illustrate the FTP commands? FTP includes many commands however only few are used to retrieve a file. A user is required to understand the three basic commands to connect to
The Utilization Count shows the status of each processor in a specific mode i.e. Overhead mode, busy mode, and idle mode with respect to the progress in time as shown in Figure.
Bitwise-AND Operator: & AND-expression : relational-expression AND-expression & equality-expression The bitwise-AND operator (&) compares each bit of its first operand t
Explain the fork-join? fork-join: It is primitives in a programming language of higher level for implementing interacting processes. The syntax is as given below: fork
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