What is a shell, Computer Engineering

Assignment Help:

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.

 


Related Discussions:- What is a shell

Explain direct memory access, Explain Direct Memory Access. A modest en...

Explain Direct Memory Access. A modest enhances in hardware enables an IO device to transfer a block of information to or from memory without CPU intervention. This task needs

Finest way to get a reference to the viewport, What is finest way to get a ...

What is finest way to get a reference to the viewport from anywhere in the code? Ans) You can use refs config to set a reference on the Application/Controllers

Data rate limitations in PSTN's by using nyquist theorem, Explain with the ...

Explain with the help of Nyquist theorem, the data rate limitations in PSTN's. Data rates in PSTNs : A voice channel in a public switched telephone network is band restricted

Entrepreneurship, explain succession planning and strategies for harvesting...

explain succession planning and strategies for harvesting and ending the venture

Digital electronics, Explain the principle of duality with examples.

Explain the principle of duality with examples.

What is the advantages for linux, What is the advantages for Linux? ...

What is the advantages for Linux? Runs on old Hardware Low-Cost Linux is fully customizable in all its components Powerful Linux runs on low-end, cheap hardware

Collective communications - broadcast, Q. Collective Communications - Broad...

Q. Collective Communications - Broadcast? Broadcast: Broadcasting can be done in two ways one of them is one to all and another one is all to all. In the matter of one to all b

Concepts of evolution are used by the genetic algorithm, Q. What basic conc...

Q. What basic concepts of evolution are used by the genetic algorithm? ANSWER: The three concepts are selection, crossover and mutation. Selection is the feature of a genetic a

Kirchoff''s laws, i want to make an assignment about kirchoff''s law

i want to make an assignment about kirchoff''s law

Slower layer to a faster layer, Given a four level hierarchical storage sys...

Given a four level hierarchical storage system consisting of: cache,  primary storage, secondary storage, and tertiary storage. Suppose the following:  programs may be executed on

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd