What is the command input?

The Input command asks the user to enter a value for a variable (only one variable can be inputted at a time), waiting until the user enters a value and then presses ENTER. Input can be used to display every variable just before it requests user input, but some of the variables have to be entered in a certain way.

What are commands on a computer?

An instruction to a computer or device to perform a specific task. Commands come in different forms. They can be: special words (keywords) that a program understands. function keys.

What is meaning of input in computer?

An input is data that a computer receives. An output is data that a computer sends. Computers only work with digital information. Any input that a computer receives must be digitised. Often data has to be converted back to an analogue format when it’s output, for example the sound from a computer’s speakers.

What are the three types of input?

Input is data put into a computer for processing. Input devices are broken down into 3 categories: keyboards, pointing devices, and Data-Entry devices.

What are the examples of input?

Examples of input devices include keyboards, mouse, scanners, cameras, joysticks, and microphones. Input devices can be categorized based on: modality of input (e.g., mechanical motion, audio, visual, etc.)

Which is output device?

An output device is any piece of computer hardware equipment which converts information into human readable form. Some of the output devices are Visual Display Units (VDU) i.e. a Monitor, Printer graphic Output devices, Plotters, Speakers etc.

What are 5 input and output devices?

Input and Output Devices
  • Keyboard.
  • Mouse.
  • Microphone.
  • Bar code reader.
  • Graphics tablet.

What is called output?

1. Any information that is processed by and sent out from a computer or other electronic device is considered output. An example of output is anything viewed on your computer monitor screen, such as the words you type on your keyboard.

What are the 10 input devices and their functions?

  • KEYBOARD. A keyboard consists of a series of keys that can be pressed to.
  • MOUSE. A mouse consists of a ball or laser that tracks the movement of.
  • TRACKBALL. These devices work like a standard mouse except the users.

What is both an input and output device?

For instance, a keyboard or computer mouse is an input device for a computer, while monitors and printers are output devices. Devices for communication between computers, such as modems and network cards, typically perform both input and output operations.

What is the importance of input devices?

Today, input devices are important because they are what allows you to interact with and add new information to a computer. For example, if a computer had no input devices, it could run by itself but there would be no way to change its settings, fix errors, or other various user interactions.

What are two basic categories of input?

Language and memoryData and instructionsText and graphicsStorage and commandsFeedbackCorrect. These are the two categories of input. Data can be unprocessed text or numbers, images, etc.

What is the role of input and output device?

An input device sends information to a computer system for processing, and an output device reproduces or displays the results of that processing. Most devices are only input devices or output devices, as they can only accept data input from a user or output data generated by a computer.

What is important output?

Output devices relay the response from the computer in the form of a visual response (monitor), sound (speakers) or media devices (CD or DVD drives). The purpose of these devices is to translate the machine’s response to a usable form for the computer user.

What is the most important output device?

  • The most common output device is the monitor or VDU.
  • Modern monitors, where the case isn’t more than a few centimetres deep, are usually Liquid Crystal Displays (LCD) or Thin Film Transistors (TFT) monitors.
  • Older monitors, where the case is likely to be around 30 cm deep, are Cathode Ray Tube (CRT) monitors.

Which is the processing device?

Processing devices are the components responsible for the processing of information within the computer system. This includes devices such as the CPU, memory and motherboard. Storage devices are components which allow data to be stored within a computer system.

What are the four basic categories of output?

A computer output device is used to extract information from a computer. There are visual, audio, print and data output devices.

What is used to see the output?

Print Preview option is used to see the output before printing. Print preview allows you to see the final result or how your document is gonna be printed on the sheet of paper.