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What is a system call?
A system call is a request made through any program to the operating system for performing tasks, picked by a predefined set, that the said program doesn't have needed permissions to execute into its individual flow of execution. System calls give the interface between the operating system and a process. Most operations interacting along with the system need permissions not available to a user level process, for example: input and output performed with a device present in the system or any form of communication along with other processes needs the use of system calls.
A common task for a system administrator is to create new user accounts. In this lab you will be creating output that looks like an /etc/passwd file. The Problem You are to
Q. Illustrate about Direct Addressing mode? In this technique operand field of instruction specifies direct address of intended operand for example if instruction LOAD 500 uses
What is the purpose of DOTNET? Dot Net Is a collection of products like C#, ASp.Net, Vb.Net, XML. The purpose of .Net is that we can simply upgrade and degrade our programs whi
Question: a) Evary cell in a cellular network is assigned a band of frequencies. The allocated frequencies are divided into two types of channels. Indentify and describe each t
Assembler directives: An assembler directive is a statement to give direction to the assembler to perform the task of assembly process. Assembler directives control organizati
Hardware Support for paging
Encapsulation of OOA Encapsulation separates the interface of an abstraction from its implementation. By taking the above example i.e. of a car, we can now categorize them as:
SET SCREEN With SET SCREEN the present screen simply specifies the next screen in the chain , control branches to this next screen as soon as the current screen has been proce
Explain Shadow Copy Scheme in detail.
program to find minimum total number of shelfs
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