Chapter 6

Chapter 6 - Understanding Input:-
-INPUT is any data and instructions entered into the memory of a computer.

What is Input?
Input instructions can be entered into the computer in the form of programs, commands, and user responses.

• A program is a series of related instructions that tells a computer what tasks to perform and how to perform them.
• Programs respond to commands that a user issues.
• A user response is an instruction a user issues by replying to a question displayed by a program

What are Input Devices?
An input devices is any hardware component that allows users to enter data and instructions into a computer.
The Example of input:-

• Keyboard
• Mouse
• Touch screen
• Pen input (Stylus, digital pen)
• Game controller
• Digital camera

Keyboard:-

A keyboard is an input device that contains keys users press to enter data and instructions into a computer.

An ergonomic keyword has a design that reduces the chance of wrist and hand injuries.

Ergonomics incorporates comfort, efficiency, and safety into the design of the workplace

MOUSE:-

A mouse is a pointing device that fits under the palm of your hand comfortably.

TOUCH SCREEN:-

A touch screen is a touch-sensitive display device.

PEN INPUT (Stylus, digital pen):-

With pen input, you touch a stylus or digital pen on a flat surface to write, draw, or make selections.

GAME CONTROLLERS:-

Video games and computer games use a Game controller as the input device that directs movements and actions of on-screen objects.example such as Gamepads, joystick and light gun.

DIGITAL CAMERA:-

A digital camera is a mobile device that allows users to take pictures and store them digitally.

VOICE INPUT:- 

Audio input is the process of entering any sound into the computer.

• Speech
• Music
• Sound Effects

-Music production software allows users to record compose, mix and edit music and sounds.

-Video input is the process of capturing full-motion images and storing them on a computer's storage medium.

-A Web cam is a type of digital video camera that enables a user to capture video and still images, send email and broadcast live.

-A video conference is a meeting between two or more geographically separated people.

SCANNERS AND READING DEVICES:-

• Flatbed
• Pen or handheld
• sheet-fed
• Drum

Optical character recognition (OCR) involves reading characters from ordinary documents

-A tTurnaround document is a document you return to the company that creates and sends it.

-A bar code reader, also called a bar code scanner user laser beams to read bar codes.