Computer Literacy Input Devices Computer Literacy Keyboard Mouse
Computer Literacy Input Devices
Computer Literacy Keyboard Mouse Touch COMPUTER Pen-based Scanners Voice
Computer Literacy Keyboard Mouse Touch COMPUTER Pen-based Scanners Voice
Computer Literacy Pressure Sensitive Touch pads use a pressure-sensitive membrane that has a built-in grid of sensing wires.
Computer Literacy Infrared LEDs Photo detectors One way of implementing touch screen technology is by criss-crossing the screen with invisible beams of infrared light. When your finger nears the screen, it interrupts the beams of light and the coordinate is determined.
Computer Literacy Keyboard Mouse Touch COMPUTER Pen-based Scanners Voice
Computer Literacy
Computer Literacy
Computer Literacy Keyboard Mouse Touch COMPUTER Pen-based Scanners Voice
Computer Literacy Mark sense OCR MICR UPC Graphics/Text Scanners
Computer Literacy Mark sense OCR MICR UPC Graphics/Text Scanners
Computer Literacy Mark sense OCR MICR UPC Graphics/Text Scanners
Computer Literacy OCR Most OCR devices store character patterns in ROM. Characters that are read are compared with the character patterns stored in memory and are matched on the basis of the lightness and darkness.
Computer Literacy FONTS
Computer Literacy Font Characteristics · · · · Orientation - Portrait or landscape Spacing - Proportional or fixed Pitch - Characters per horizontal inch Point size - Character height Style - Upright or italic Stroke weight - Medium or bold Typeface - Courier, Times Roman, Helvetica, etc.
Computer Literacy Orientation Portrait Landscape
Computer Literacy Spacing W I FIXED WI PROPORTIONAL
Computer Literacy Pitch Number of Characters per horizontal inch This pitch is 10 characters/inch This pitch is 12 characters/inch This pitch is 16. 67 characters/inch
Computer Literacy Point Size (1 pt = 1/72 inch) Times Roman 2 pt Times Roman 6 pt Times Roman 12 pt Times Roman 24 pt Times Roman 36 pt Times Roman 72 pt
Computer Literacy Style UPRIGHT ITALIC
Computer Literacy Stroke Weight MEDIUM BOLD
Computer Literacy Type Face Times Roman Helvetica Trafalgar algerian Wide Latin Script
Computer Literacy Serifs UP!!! Times Roman Helvetica The World’s Most Readable Serif Typeface The International Sans Serif Typeface Aa Bb Cc ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqurstuvwxy
Computer Literacy Mark sense OCR MICR UPC Graphics/Text Scanners
Computer Literacy MICR Check Routing Symbol ABA Transit Number Account Number Process Control Number Amount
Computer Literacy Mark sense OCR MICR UPC Graphics/Text Scanners
Computer Literacy UPC Start / End Markers 48001 Manufacturer ID# 26568 Product ID#
Computer Literacy Mark sense OCR MICR UPC Graphics/Text Scanners
Computer Literacy
Computer Literacy Keyboard Mouse Touch COMPUTER Pen-based Scanners Voice
Computer Literacy Voice Recognition 1010010101 “COPY” analog to digital converter Microphone pattern matching template library 1010010101 input to computer system
Computer Literacy Voice Control Software
Computer Literacy Voice Dictation Software
Computer Literacy Keyboard Mouse Touch COMPUTER Pen-based Scanners Voice + “others”
Computer Literacy Light Pen Digitizer Tablet • Magnetic Stripes & Smart Cards • ATM’s • POS’s Digital Cameras
Computer Literacy This section is finished
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