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

Illustrate function of 4-input multiplexer using basic gates, Illustrate fu...

Illustrate functional diagram of digital multiplexer . Write the scheme of a 4- input multiplexer using basic gates (AND/OR/NOT) and explain its operation. Ans: Multiple

What is random access memory, What is random access memory(RAM or MAIN MEMO...

What is random access memory(RAM or MAIN MEMORY) and mention its types? The main memory in the central storage unit in a computer system. It is relatively large and fast memory

Cgi programming, For this assignment you should construct a comprehensive w...

For this assignment you should construct a comprehensive web site for Dangar Winery of Puddledock Road Armidale, makers of fine table wines and ports since 1983. Chief winemaker, A

Explain about merge sort circuit, Q. Explain about Merge sort circuit? ...

Q. Explain about Merge sort circuit? First split the given sequence of n numbers in two parts every part comprising of n/2 numbers. Afterwards recursively divide the sequence i

Show the classification of printers, Q. Show the Classification of Printers...

Q. Show the Classification of Printers? Printers can be classified on following bases: a) Impact: Impact printers print by impact of hammers on ribbon (for example Dot-Matri

What are the factors determine the control signals, What are the factors de...

What are the factors determine the control signals? Contents of the control step counter Contents of the instruction register Contents of the condition code flag

Explain the operation of 8:1 multiplexer, Explain the operation of 8:1 mult...

Explain the operation of 8:1 multiplexer. Ans: In this multiplexer 8 Input and 1 Output and three select lines i.e. S 2 , S 1 , S 0 are given. Any one of the inputs will be

Device controllers, All components of computer communicate with processor b...

All components of computer communicate with processor by the system bus. Which means I/O devices required to be attached to system bus. But I/O devices aren't connected directly to

Give brief explanation about the keyboards, Give brief explanation about th...

Give brief explanation about the keyboards Keyboards are generally not offered as the number of options is limited and owners of the system do not want customers keying in info

Convention used to represent micro-operations, Q. Convention used to repres...

Q. Convention used to represent micro-operations? The convention used to represent micro-operations is: 1.  Computer register names are designated by capital letters (someti

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