Unit 6 Output 1 Theory 6 Categories

Unit 6 Output #1 Theory 6

Categories of Hardware • Input • Processing • Storage • Output* #2 Theory 6

Output Devices • Softcopy devices – Monitor - Sound • Hard copy devices – Printer • (Scanner & others) #3 Theory 6

Softcopy Output Devices #4 Theory 6

Monitor • Monitor – Screen – Several types/sizes • CRT • Flat #5 Theory 6

Monitor Specifications • Size (diagonal) 17” • Dot Pitch. 26 • Type of graphics – VGA -SVGA • Non-Interlaced #6 Theory 6

Monitor Specs (2) • Refresh Rate • Controls • Tilt-and-Swivel Base • Filters – Glare #7 – EM Radiation Theory 6

Monitor Card • Need video card • Function: liaison • Video. RAM 4 Mb – DRAM –VRAM • 3 D #8 Theory 6

Sound Cards and Accessories #9 Theory 6

Why Use a Sound Card • Business – Audible software • Pleasure – Record sounds – Games/Multimedia #10 Theory 6

Parts of a Sound System • Sound card inside • Speakers • Microphone • Software to run it #11 Theory 6

Connections Supplied – Joystick (for games!) – Line In/Out – Mic In – Speaker Out #12 Theory 6

Sound Card Specs • Sound Blaster (true vs. generic) • Full-Duplex (Internet) • Sampling Size/Rate (depending on needs) #13 Theory 6

MIDI • Music on the computer • Types: – FM Synthesis – Wavetable Synthesis #14 Theory 6

Modem #15 Theory 6

Purpose of Modem • Connect computers by phone • Examples: – Internet – Send & Receive Faxes #16 – Exchange Information Theory 6

Types of Modems • Internal • External #17 Theory 6

Determining Speed • Modem • Line types speeds – Phone line (33. 6) – ISDN • Data com– T 1 -T 3 pression (etc) • Line Quality #18 Theory 6

Modem Procedure • Use communication software to dial • Handshake/protocols • Activities • Disconnect #19 Theory 6

Printers #20 Theory 6

Types of Printers • Impact • Non-impact – Dot matrix – Ink jet – (old: Daisy – Bubble jet Wheel) – Laser #21 Theory 6

Factors in Printers • Printer Uses • Printer Speed • Printer Resolution #22 Theory 6

Printer Comparison • Impact • Non-impact – Cheaper – $$$ – Improving – Better resolution – Slower – Faster – Multi-part #23 forms** Theory 6

Dot-Matrix Printer • Speed • Resolution • Ink • Carriage width • Paper #24 • Multipart Forms Theory 6

Ink Jet Printer • Speed • Resolution • Ink • Color • Carriage #25 • Paper Theory 6

Laser Printer • Speed • Resolution • Ink • Color • Paper #26 • Multifunction Theory 6

Laser Printer (2) • Memory • Laser Printer Language #27 Theory 6

Printer Fonts • True. Type Font -scalable • Bitmapped Font -- old fashioned #28 Theory 6

Other Printers Types • Solid Ink Printer • Thermal-Wax Printer • Dye Sublimation Printer #29 Theory 6

Scanners #30 Theory 6

Purposes of Scanner • Scan Graphics • Scan Text (OCR) #31 Theory 6

How a Scanner Works • Similar to copier • Stores data in computer • File types: – Graphic (big) – Text (smaller) #32 Theory 6

Parts of Scanner System • Scanner (machine) • Card (inside computer) • Software (to run it) #33 Theory 6

Sizes of Scanners • Hand-Held Scanner • Sheet-Fed Scanner • Flatbed Scanner #34 Theory 6

Types of Scanners • Grayscale Scanner • Color Scanner #35 Theory 6

Ways to Scan Info • Scanning Modes – Line Art – Grayscale – Color (several types) #36 Theory 6

Scanner Resolution • Higher is better! • Use resolution of the printer • Generally 300 to 600 dpi #37 Theory 6

Other Output Devices • Plotter • Stereolithography & CNC machine #38 Theory 6