Win OS & Hardware. Input Getting data into the computer.

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Presentation transcript:

Win OS & Hardware

Input Getting data into the computer

Input There are 4 types of input: TextGraphicsAudioVideo

Keyboard Keyboard – the primary input device

Keyboard A keyboard is a series of switches connected to a microprocessor that monitors the state of each switch and initiates a specific response to a change in that state.

Keyboard The most common keyboards are: 101-key Enhanced keyboard 104-key Windows keyboard 82-key Apple standard keyboard 108-key Apple Extended keyboard

Mouse Mouse was originally invented at Xerox’s Palo Alto Research Center (PARC) in the late 70’s

Mouse Mice where first introduced to the public with the introduction of the Apple Macintosh in 1984

Mouse Primary pointing device – it moves a cursor on screen corresponding to the movement of the mouse by the user

Mouse Types of mice: Roller Ball Track Ball Optical Light Pen Graphic Stylus

Mouse Roller Ball:

Mouse Track Ball:

Mouse Optical: (LED)

Mouse Optical: (LASER)

Mouse Light Pen

Mouse Graphic Stylus

Mouse Mouse Interfaces: PS/2USBSerial

Mouse PS/2

Mouse USB

Mouse Serial

Scanner Optical Device similar to a copier

Scanner Designed to make copies of images & text for use with a computer

Scanner Images Converts Analog signal copy to a Digital signal copy that a computer can use

Scanner Text Converts the text into digital format via OCR (Optical Character Recognition) software

Scanner OCR Recognizing the text on a document to be able to convert it to editable text a word processing or other software can use

Digital Camera Allows users to take pictures and store the photographed images digitally.

Digital Camera When you take a picture, light passes into the camera lens, which focuses the image on a charge- coupled device (CCD). The CCD generates an analog signal that represents the image.

Digital Camera An analog-to-digital converter (ADC) converts the analog signal to a digital signal. A digital signal processor (DSP) stores the digital image on the camera’s storage media.

Digital Camera The images can be transferred to a computer via a USB/Serial/Firewire connection

Audio Recording sound for use with a computer

Audio Voice Recognition Computer software interprets spoken words and converts them into digital form

Audio Music Computer software interprets music signals from Midi (Musical Instrument Digital Interface) compatible instruments and converts them into digital form

Audio Music Direct recording of music through a sound card input interface Wav (Wave files) a digital representation of an analog signal

Video Converting analog signal to a digital signal or direct digital transfer to the computer

Video USB or FireWire interface

Video On the computer can be edited via NLE (Non-Linear Editing) software

Input All input devices regardless of type allow us to enter some form of data into the computer for use with software or for storage

Input Questions?