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Laptop and Portable Devices

Laptop and Portable Devices. Use of Laptops. Small size and design Portable – size and battery What are today’s common uses? ??. Other Portable Devices. PDAs – organizer, apps Smart phones – phone, camera, apps. Laptop Components. Ports USD S video Sound Network Video

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Laptop and Portable Devices

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  1. Laptop and Portable Devices

  2. Use of Laptops • Small size and design • Portable – size and battery • What are today’s common uses? • ??

  3. Other Portable Devices • PDAs – organizer, apps • Smart phones – phone, camera, apps.

  4. Laptop Components • Ports • USD • S video • Sound • Network • Video • Cards – more later • Ventilation

  5. Laptop Components • Optical Drive • Battery • Hard Drive access panel • Ram Access Panel • Doc Station connection • Display

  6. LCD Displays Matrix – made of columns and rows Passive – the display is created at one time Active Matrix – a single pixel can be changed

  7. Passive matrix Color super-twist nematic (CSTN) Dual Scan Ferroelectric High-Performance Addressing (HPA) Usually can’t run projectors or LCD panels from these types of laptops

  8. Active matrix Metal-insulator-metal (MIM) Plasma-addressed liquid crystal (PALC) Thin-film transistors (TFT)

  9. Display resolutions • XGA – Extended graphics – 1024x768 • SXGA+ - Super XGA – 1400x1050 • 14-15 inch display – typically max resolution for projectors • UXGA – Ultra XGA – 1600x1200 • WUXGA – Wide screen 1920x1200

  10. Docking stations Port Replicator – cheapest – Docking station – difference is network access Cold docking – laptop is off Warm docking – laptop must be put in suspend mode Hot docking – a change can be made while running normal operations.

  11. Batteries Nickel-cadmium (NiCad) least preferable must be charged every 3-4 hours Nickel-metal hydride (NiMH) – store up to 50% more power and don’t suffer loss of functionality from partial draining and recharging Lithium ion (Lion) – Lightweight and long life – more expensive Fuel cell -

  12. Batteries cont. Fuel cell – Casio plans to produce a hydrogen fuel cell that will last 20 hours. High price.

  13. Battery Disposal Don’t put in mutilate Don’t crush, puncture, or incinerate or short external circuits Don’t short-circuit – can cause burns

  14. PCMCIA Cards • Expansion cards for • Type III or Type II or Type I devices • Type I – 3.3 mm thick Usually used for memory • Type II – 5.5 mm thick - most common – NICs • Will work with Type 1 • Type III – 10.5 mm thick - used for drive – not common • Both Type I, II, III can be used in a III slot

  15. Today new technology called CardBus • Mini PCI slot – wireless • 32-bit bus • Operates at 32MHz • 3.3 volts • Uses type III, II, I • Most designs have only two Type II slots • You can plug in two Type I or type II or One Type III

  16. Ports and Communication Connections Bluetooth - how mobile phones, computers, and personal digital assistants ( PDA s) can be easily interconnected using a short-range wireless connection Infrared – line of site - used for short- and medium-range communications and control. WAN WiFI – wireless network. Cellular -

  17. Pointing and Input Devices Touchpad's, point sticks, and track points Digitizer – pen Fn – function key -

  18. Power Management • Know how to access – • XP – start/control panel/power options • Advanced configuration Power Interface (ACPI) – in ACPI the BIOS provides the OS with necessary methods of controlling the hardware.

  19. Three main state of power management Hibernate – saves all contents of memory to the hard drive and preserves all data/applications where they are. Standby – leaves memory active but saves everything to disk. Suspend – same as hibernate. In XP hibernate is used instead of Suspend.

  20. Battery changing Know that a battery is hot-swappable but you either need a second battery or be plugged in to change.

  21. Common Laptop Issues Stylus Issues – Can go bad and be replaced Antenna wires – remove interference Backlight – can go bad and need to be replaced. Know that the inverter can go bad also and be replaced. DC power – replace the battery. Set to fully drain if possible External monitors – usually will see when booting if not use the Fn key

  22. Common Laptop Issues External Keyboards – replace Pointers – can gain dust – clean or use external mouse. Unneeded peripherals – disable if possible they drain the battery Video – incorrect settings – have current drivers

  23. Maintenance • Cleaning – mild soap and water on a clean, lint-free cloth • Make sure power is off • Use a glass cleaner designed for monitors and a soft cloth. • Clean environment • Run Disk Defrag, Scandisk, Check Disk, and Disk cleanup • Perform scheduled maintenance to prolong life

  24. Maintenance • Temperature – 45 to 90 degrees • Humidity – between 10 to 80 percent

  25. Memory • SODIMM – Small Outline DIMM • 72 – 32-bit data bus • 144- 64 bits wide • New MicroDIMM – smaller no notch – • 144-pin 32MBx64

  26. Memory Upgrades • Make sure you refer to the documetation. • Use the internet – research • Meomry problems – • Laptop not working at all • Beep-code error • Soft memory errors • Short memory counts in post • Locking up in boot

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