Computers are your Future Chapter 3
Input Devices: Keyboards Function Keys Escape Tab Caps lock Windows key Ctrl and Alt Shift Cursor movement keys Numeric keypad Number lock Toggle keys Cursor/insertion point Wireless keyboards Mobile device keyboards Intelligent keyboards Virtual laser keyboard
Input Devices: Mouse Optical mouse Travel Mouse Wheel mouse LED light Travel Mouse Wheel mouse Scroll text Wireless mouse Mouse Alternatives Trackball Touchpad Joystick Stylus Touch screen
Input Devices: Alternative Speech recognition Skinput Scanners Bar code reader Optical mark reader Scantron tests Magnetic strip card reader Biometric input device Digital Camera Video Camera Web cam
Output Devices: Monitors LCD Liquid crystal display Soft copy vs hard copy (printed) Screen size Diagonal measurement Resolution Pixels Televisions as monitors HDTV HDMI port OLED No backlighting required Flexible OLED
Output Devices: Printers Inkjet printer Dpi Laser printer Toner Dot matrix Obsolete Ribbon Thermal transfer Photo printer Plotter maps
Output Devices: Other Projectors Multifunction device Fax Printer/scanner/copier Fax
Storage Vs. Memory Storage Memory Retains data when device is off Less expensive Used in start up Needed for output Memory RAM (volatile) More expensive – must operate quickly to keep up with CPU
Memory Devices: Hard Disk NAS (Network Attached Storage) Remote Storage (Internet hard drive) Flash Drives Blue Ray Hi-def video recording, rewriting, playback CD and DVD CDR Compact disk recordable CDRW Compact disk rewriteable DVD + R Recordable DVD + RW Rewritable
Storage Devices Solid State Flash Memory Cards Smart Card Memory chip SD Card Mini SD Card Micro SD Card Smart Card Debit card w/ chip
Storage Devices: Future Holographic storage Laser beams 50,000 music files on postage stamp size Eye-fi wireless memory card Transfer photos from phone to PC Racetrack memory High speed and uses less power
Challenge How do you transfer data from one storage or memory device to another? Next time: File Management