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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.
Differentiate between protection and security. Operating system contains a collection of objects, software or hardware. All objects have a unique name and can be accessed by
Hyper-threading, officially known as Hyper-threading Technology (HTT), is Intel's trademark for their execution of the simultaneous multithreading technology on the Pentium 4 micro
Assignment (to be published later) will require you to extend the menu-driven application developed in Assignment 2B, to incorporate the recording details of the doctors who will b
Prove the equations using the Boolean algebraic theorems that is given below A‾BC + AB‾C + ABC‾+ ABC = AB + BC + AC Ans. The equation given is A‾BC + AB‾C + ABC‾+ ABC = AB + BC +
Q. Characteristics of decision support system? Characteristics of DSS- The qualities of the DSS are as follows: - 1. DSS focus on towards providing assistance in analyzing s
Layout view is helpful for laying out Web pages. However you can adjust most of your design elements in Layout view, certain changes should be completed in Standard view. When you
Q. Explain about Hybrid model? Hybrid models are normally tailor-made models suiting to particular applications. In fact these fall in category of mixed models. These type of a
When web pages containing emails are sent out they are prefixed by MIME Header. Why? Primarily email consisted messages having simple text written into English and expressed in
Explain the term- Signals - Signals are used for communication between components - Signals can be seen as real, physical signals - Some delay should be incurred in a
Processing elements (PEs) : Every processing element consists of ALU, local memory and its registers for storage of distributed data. This PEs has been interconnected via an inte
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