Question

Which of the following is the program that interprets commands given by the user? 
1. Communications
2. Shell 
3. Thread
4. File modification 

Answer 1

Correct Answer - Option 2 : Shell 

The correct answer is Shell.

• Program
  • It is a collection of instructions that are executed by a computer to perform a specific task.
  • It is generally written by a computer programmer in a programming language.
• Shell
  • It is a program that interprets commands and acts as an intermediary between the user and the workings of the operating system.
  • It will give a prompt for the user to type in a command, take the command, execute it, and then waits for another command.

• Communications
  • Computer communications is a process, where two or more computers or devices transfer data, instructions, and information.
  • The most common examples are Email, SMS chat, Social Networks, etc.
• Thread
  • It is a single sequence stream within processes.
  • Threads are executed one after another but give the illusion as if they are executing in parallel.
• File Modification
  • It refers to modifying the file and folder and it can be only be done by the administrator for a computer or the owner of a file or folder.