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

Fixed arithmetic pipelines, Fixed Arithmetic pipelines  We obtain the e...

Fixed Arithmetic pipelines  We obtain the example of multiplication of fixed numbers. The Two fixed-point numbers are added by the ALU using shift and add operations. This sequ

Explain top-down parsing, Explain Top down parsing. Top down parsing...

Explain Top down parsing. Top down parsing: Specified an input string, top down parsing tries to derive a string identical to this by successive application of grammar rule

Levels of parallel processing, Levels Of Parallel Processing Depending ...

Levels Of Parallel Processing Depending upon the difficulty under consideration, parallelism in the answer of the problem may be achieved at dissimilar levels and in different

First-order models, First-Order Models: Here if we proposed first-orde...

First-Order Models: Here if we proposed first-order logic as a good knowledge representation language than propositional logic is just because there is more expressive than we

What is asynchronous transmission, What is asynchronous transmission An...

What is asynchronous transmission An asynchronous transmission technique used in many interactive terminals employ special bits. With this method each character consists of thr

Single instruction and single data stream (sisd), Single Instruction and Si...

Single Instruction and Single Data stream (SISD) In this organisation, sequential implementation of instructions is executed by one CPU having a single processing element (PE

Protocols and services on internet, To work with Internet as well as to uti...

To work with Internet as well as to utilize its facilities we use certain tools. For illustration, Telnet is a tool, which is utilized for logging on remote computers on the Intern

What a header script can specify in cgi, A header in CGI script can specify...

A header in CGI script can specify? A header into CGI script can give format of document and New location of perticular the document.

Why does microprocessor contain rom chips?, Microprocessor have ROM chip be...

Microprocessor have ROM chip because it have instructions to implement data. It have the monitor program which not only include implementation instruction but also interfacing

Standards used for development of a system, Q. Standards used for developme...

Q. Standards used for development of a system? Documentation standards: It must be an ongoing activity at the time of system development life cycle.  Quality Standards:

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