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1. en.wikipedia.org › wiki › Command_(computing)Command (computing) - Wikipedia

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   In computing, a command is a directive to a computer program to perform a specific task. It may be issued via a command-line interface or as input to a network service as part of a network protocol, or as an event triggered in a graphical user interface .

   • Shell (computing) - Wikipedia

     In computing, a shell is a computer program that exposes an...

   • Command-line interface - Wikipedia

     A command-line interface ( CLI) is a means of interacting...

   • Shell (computing) - Simple English Wikipedia, the free ...

     Shell (computing) An operating system shell is a user...

   • Command - Wikipedia

     Contents. hide. (Top) Computing. Military. Music. Sports....

2. en.wikibooks.org › wiki › Computer_Science_DesignCommand - Wikibooks, open books for an open world

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   May 3, 2023 · Command. The command pattern is an object behavioural pattern that decouples sender and receiver. It can also be thought as an object-oriented equivalent of a call back method. Call back: It is a function that is registered to be called at a later point of time based on user actions.

3. People also ask

   What is a command in computer programming?

   • In computing, a command is a directive to a computer program to perform a specific task. It may be issued via a command-line interface or as input to a network service as part of a network protocol, or as an event triggered in a graphical user interface . Specifically, the term command is used in imperative programming languages.

   Command (computing) - Wikipedia

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   What is a command line operating system?

   • Command line shells: the user types commands at the prompt. Menu driven shells: the user selects commands from menus. Graphical user interface shells: the user selects graphical menus and icons. Examples of command line operating systems are UNIX and Disk Operating System (DOS). Examples of menu driven operating systems are the DOS shell.

   Shell (computing) - Simple English Wikipedia, the free encyclopedia

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   How does the user give commands to the operating system?

   • The user gives commands to the operating system through its shell. In simple words - a shell is a program that accepts the input from users and excutes program on their behalf by creating a new process, and whatever the response from that particular program - which could be input, output or error - it shows back it the the user.

   Shell (computing) - Simple English Wikipedia, the free encyclopedia

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   What is the history of computing?

   • more timelines ... The history of computing is longer than the history of computing hardware and modern computing technology and includes the history of methods intended for pen and paper or for chalk and slate, with or without the aid of tables. Digital computing is intimately tied to the representation of numbers.

   History of computing - Wikipedia

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4. en.wikipedia.org › wiki › History_of_computingHistory of computing - Wikipedia

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   Grace Murray Hopper: a pioneer of computing. She worked alongside Howard H. Aiken on IBM's Mark I. Hopper and also came up with the term " debugging ." Hedy Lamarr: invented a "frequency hopping" technology that the Navy used during World War II to control torpedoes via radio signals.