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

Write an algorithm for the braking system, Question: a) Consider a car ...

Question: a) Consider a car having a collision detection mechanism. Write an algorithm (in simple English) to illustrate the collision detection mechanism. b) The same car

What is XML DTD (Document Type Definition), What is XML DTD (Document Type ...

What is XML DTD (Document Type Definition)? DTD is a document which defines legal building blocks of a particular XML document. This defines the document structure along with

Hazard (computer architecture), Hazard (computer architecture): In the...

Hazard (computer architecture): In the computer architecture, a hazard is a possible problem that can occurs in a pipelined processor. It concern to the possibility of erroneo

How can arithmetic processor be associated to the CPU, Q. How can this arit...

Q. How can this arithmetic processor be associated to the CPU?  Two mechanisms are used for connecting arithmetic processor to CPU.   If an arithmetic processor is treated a

Define the do while loop, The do while Loop This is very similar to the...

The do while Loop This is very similar to the while loop except that the test occurs at the end of the loop body. This guarantees that the loop is executed at least once before

How many chips will be required in a microprocessor , A microprocessor uses...

A microprocessor uses RAM chips of 1024 × 1 capacity. (i) How many chips will be required and how many address lines will be connected to provide capacity of 1024 bytes. (ii) How

Digital Design, Design a serial 2’s complementer with a shift register and ...

Design a serial 2’s complementer with a shift register and a flip-flop

Pre-os and runtime sub-os functionality, In a raw Itanium, a "Processor Abs...

In a raw Itanium, a "Processor Abstraction Layer" (PAL) is integrated into the system. When it is booted the PAL is loaded into the CPU and gives a low-level interface that abstrac

Illustrate code segment with example, CODE SEGMENT ; Set DS register ...

CODE SEGMENT ; Set DS register MOV AX, DATA     ;    boiler plate code to set the DS register so that the MOV DS, AX          ;    program can access the data segment.

Select-options and parameters statement, The fields specified by select-opt...

The fields specified by select-options and parameters statement cannot be grouped together in the selection screen.  No, It can be grouped together in the selection screen

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