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S CANNING D EVICES / D IRECT I NPUT D EVICES. O BJECTIVES State what is an automatic and direct input device List different types of direct input devices.

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Presentation on theme: "S CANNING D EVICES / D IRECT I NPUT D EVICES. O BJECTIVES State what is an automatic and direct input device List different types of direct input devices."— Presentation transcript:

1 S CANNING D EVICES / D IRECT I NPUT D EVICES

2 O BJECTIVES State what is an automatic and direct input device List different types of direct input devices Describe their functions List at least two (2) applications of each

3 E XAMPLES ARE... Scanning Devices OMR OCR MICR Barcode Reader Scanners: Flat ~ bed Handheld

4 D IRECT I NPUT D EVICES Pieces of equipment That can enter data Straight from the source (document) Into the CPU

5 F UNCTIONS Scanning DevicesFunctions Scannerdetects the presence of pencil marks by reflecting light onto it Optical Mark Reader (OMR)recognize numbers printed in a standard font using the magnetic ink Optical Character Reader/Recognition (OCR) used at Electronic Point-of-Sale terminals Magnetic Ink Character Reader (MICR) software examines scanned document and translates the text into machine – editable text Barcode Reader (BCR)convert images or text on paper into a digital format that can be used by the computer Match the following:

6 CHARACTERISTICS Scanning DevicesCharacteristics Scanner A series of vertical bars of varying widths Optical Mark Reader (OMR)consists of a normal scanner and some special software Optical Character Reader/Recognition (OCR) used to convert images or text on paper into a digital format that can be used by the computer Magnetic Ink Character Reader (MICR) detects the position of black marks on white paper Barcode Reader (BCR) numbers are written in a special ink containing iron oxide Match the following:

7 APPLICATIONS Scanning DevicesApplications Scanner verifying the authenticity of cheques payment and processing of utility bills Optical Mark Reader (OMR)reading of airline tickets and passports at airport Optical Character Reader/Recognition (OCR) library tickets ~ to show your account and any books you still have out on loan Magnetic Ink Character Reader (MICR) Counting election votes track inventory and calculate sales at the checkout counter. Barcode Reader (BCR) copies text or pictures into the computer electronic lotteries Match the following:

8 H OME ~ W ORK Log on to IT for CSEC- PG 22 Exercise 2 - crossword PG 27 Matching descriptions – nos. 1, 2, 3, 4, 5 & 6


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