logging in or signing up Input-Output Devices sweetcarol Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 2974 Category: Science & Tech.. License: All Rights Reserved Like it (0) Dislike it (0) Added: February 24, 2011 This Presentation is Public Favorites: 2 Presentation Description No description available. Comments Posting comment... By: lovejeekachhawaha (30 month(s) ago) plz send it to my E mail ID Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Slide 1: Input- Output Devices By- Mahima Mohan 1Synopsis-: Synopsis- Introduction to Input-Output Devices. 2. Role of Input-Output Devices (Flowchart) 3. Commonly used Input devices 4. Commonly Used Output devices 2Introduction-: Introduction- Provides means of communication between the computer & the outer world. Also known as peripheral devices because they surround the CPU & the memory of the Computer system. Input devices are also to enter data from the outside world into primary storage. Output devices supply results of processing from primary storage to users. 3Role of Input-Output Devices: Role of Input-Output Devices Input data from external world Input Devices CPU & MEMORY Output Devices Results of processing in human acceptable form Input data coded in internal form Processed data in internal form 4Commonly Used Input Devices: Commonly Used Input Devices 1. Keyboard Devices- Allow data entry into a computer system by pressing a set of 101 keys neatly mounted on a keyboard connected to a computer system. 2. Point-&-draw devices- They are used to rapidly point to & select a graphic icon or menu item from multiple option on the GRAPHICAL USER INTERPHASE (GUI) of a screen. - They are as follows a. Mouse b. Track ball c. Joystick d. Light pen e. Touch screen 5Slide 6: 3. Data scanning devices- Input devices that enable direct data entry into a computer system from source documents. Types – a. Image scanner, b. Optical Character Recognition (OCR) Device c. Optical Mark Reader (OMR). d. Bar Code Reader, Magnetic Ink e. Character Recognition (MICR). 6Slide 7: 4. Digitizer- Input device used for converting (Digitizing) pictures, maps & drawings into digital form for storage in Computers. 5.Electronic cards based devices- Electronic cards are small Plastic cards having encoded data appropriate for the application for which they are used. 6.Speech recognition devices- Input device that allows a person to input data to a computer system by speaking to it. 7.Vision base devices- Allows computer to accept input just by seeing an object. 7Commonly used Output Devices-: Commonly used Output Devices- Monitors- Display the output on a television like screen. 2. Printers- Most common output devices for producing hard-copy output. 3. Plotters- They are an ideal output device for architects, engineers, city planners, & others who need to routinely generate high-precision, hard-copy graphic output of widely varying sizes. 8Slide 9: 4. Screen Image Projector- Used for making presentations to a group of people with direct use of a computer. 5. Voice response Systems- It enables a computer to talk to the user. - It has an audio response device that produces an audio-output. 9Slide 10: Thank You 10 You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.