Alternative Input Devices Part B There will be

Alternative Input Devices Part B There will be a test on this information (both part a & b).

Communications (Digital) • Wireless communication is the ability to send data or video without being connected to a wire, either by telephone or handheld computer. • Communications connectivity refers to a program device’s ability to link with other programs and devices.

Digital Camcorder • Produces video recordings with highly accurate color and crisp clear resolution • The image can be saved as a data file. • View recordings on a regular TV or copy them to VHS tape (Today can record directly to DVD-R or DVD-RW disk) • Send MPEG video clips by way of e-mail to a mobile phone or PDA • Immediate feedback from the LCD screen • Stores still images or short video clips on flash memory card

Digital Camera • Resembles a traditional camera • Images are recorded and stored in digital form • Captured pictures are stored on floppy disk, memory stick, smart media, or flash memory • Immediate feedback using a LCD screen • Images can be transferred into a word document, e-mail, or posted on a web site

Scanners • Can read text printed on paper and transmit the information into a form the computer can use and edit. • If you printed a paper that you had written for your English class and noticed that you made some mistakes, how would you correct your mistakes if you did not save your file? • Flatbed scanners and handheld scanners. • Barcode scanners read bar codes that allow tracking of assets and inventory, checking items in, maintaining physical inventory and controlling fixed assets in a business.

Magnetic Scanner Business Card Scanner Photo and Negative Scanner

Smart Cards • Contain electronic memory and embedded memory • Stores cash in digital form • Stores patients medical records • Used for government identification • Found in mobile phones and vending machines

Media Storage • Hard disk, flash drive, CD-ROM • Pen drive is another name for a USB flash drive. • Access is the act of reading data from or writing to a storage device. • Fire wire devices (Drives) are very fast external bus standards that support data transfer rates of up to 400 Mbps? • A flash drive that is plugged into the USB port instantly gives an additional hard drive. (floppy disk-old storage)

GPS • GPS uses reference points to calculate positions accurate to a matter of meters. These points are called man-made stars. • It is a worldwide radio-navigation system formed from a constellation of 24 satellites and ground stations. • By using three satellites, it can calculate the longitude and latitude of the receiver based on where and how many spheres intersect. • • • Satellite navigation system Help with driving directions Found in personal cars and emergency vehicles

Biometric Devices • Authentication techniques for thumb prints, retina scan, and finger prints. (physical characteristics) • Enhances security and privacy • Widely used in business and industry • Eliminates the need for passwords

Speech Recognition • Speech recognition is the act of talking to a computer and the computer obeys the commands and translates the speech into written text. • A microphone that is attached to a headset allows the input sound into a computer.

PDA – Handheld Computers • A PDA is a portable computer small enough to be held in one’s hand. • It can be used to beam messages, read a book, keep track of appointments, and maintain a contact list. • Stylus or touch screen used to input data

Notebook Computer • Notebook is another name for laptop • The principal difference between a notebook computer and a personal computer is portability. • Plasma, high contrast, and LCD displays are used in flat screen monitors and portable computers.

Tablet • A tablet can be written on with a specialpurpose pen or stylus and then translate handwriting into text. • Selections can be made on a touch screen using a pen, stylus, or finger.

WACOM Tablet • To use for a signature • To draw and/or edit pictures

Web Cam/Cell Phone/Web TV • The Web camera broadcasts images through the Internet. • The cell phone also allows users to access the Internet by wireless communication. • The Web TV is a small box with a keyboard that connects to a telephone line and television.

Probes • Probes are devices used by scientists with a computer to translate data received. • Handwriting recognition uses a technique by a computer system to recognize characters and other symbols written by hand.

Questions • Do you have any questions? • Reminder: You are responsible for the information that has been covered.