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chapter 7 laptops

jadelusi Inglês

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chapter 7 laptops

  1. The first laptops were used primarily by business people who needed to access and enter data when they were away from the office. The use of laptops was limited due to expense, weight, and limited capabilities compared to less expensive desktops.

  2. Laptop and desktop computers use the same types of ports so that peripherals can be interchangeable. These ports are specifically designed for connecting peripherals.

  3. Laptops require a port for external power. Laptops can operate using either a battery or an AC power adapter. You can use this port to power the computer or to charge the battery.

  4. Laptops are designed to be compact and portable, while maintaining much of the functionality provided by desktop systems. As a result, essential input devices are built-in to laptops. When a laptop is open, the following input devices may be present:

  5. Laptops may feature LEDs that show the status of specific devices or components. LEDs are commonly found below the display screen or directly above the keyboard. Click the highlighted areas in Figure 2 for more information on these LEDs.

  6. Motherboards Desktop motherboards have standard form factors. The standard size and shape allow motherboards from different manufacturers to be interchangeable.

  7. RAM Laptops have space restrictions. Therefore, they use Small Outline Dual In-line Memory Modules

  8. The purpose of the Function (Fn) key is to activate a second function on a dual-purpose key. The feature that is accessed by pressing the Fn key in combination with another key is printed on the key in a smaller font or different color. Several functions can be accessed:

  9. A laptop monitor is a built-in LCD. It is similar to a desktop LCD monitor, except that you can adjust the resolution, brightness, and contrast settings using software or button controls.

  10. A base station attaches to AC power and to desktop peripherals. When you plug the laptop into the base station, you have access to power and the attached peripherals as well as an increased number of ports.

  11. Laptop monitors are built-in displays. They are similar to desktop monitors, except that you can adjust the resolution, brightness, and contrast using software or button controls

  12. LED monitors use less power and have a longer lifespan than LCD monitors. Organic LED (OLED) technology is commonly used for mobile devices and digital cameras, but can also be found in laptop concept designs.

  13. Wi-Fi antennas transmit and receive data carried out over wireless signals.

  14. A base station attaches to AC power and to desktop peripherals. When you plug the laptop into the base station, you have access to power and the attached peripherals as well as an increased number of ports.

  15. Laptop monitors are built-in displays. They are similar to desktop monitors, except that you can adjust the resolution, brightness, and contrast using software or button controls.

  16. LED monitors use less power and have a longer lifespan than LCD monitors. Organic LED (OLED) technology is commonly used for mobile devices and digital cameras, but can also be found in laptop concept designs.

  17. An inverter and backlight are two important display components. The inverter converts DC power to the higher voltage AC power that is required by the backlight. The backlight shines through the screen and illuminates the display.

  18. Wi-Fi antennas transmit and receive data carried out over wireless signals.

    • Advances in power management and battery technology are increasing the time that a laptop can be disconnected from AC power.
      • Technicians frequently are required to configure power settings by changing the settings in the BIOS setup.
        • If you do not want to completely shut down the laptop when you press the power button, you can adjust settings to reduce power usage.
  19. Four specifications of Bluetooth technology, as shown in Figure 3, define the standards for data transfer rates. Each subsequent version offers enhanced capabilities. For instance, Version 1 is older technology with limited capabilities, and Version 4 features more advanced capabilities.

  20. An external flash drive, also known as a thumb drive, is a removable storage device that connects to a USB port. An external flash drive, as shown in Figure 1, uses the same type of nonvolatile memory chips as a solid state drive (SSD).

  21. A flash card is a data storage device that uses flash memory to store information. Flash cards are small, portable, and require no power to maintain data.

  22. Additional RAM improves laptop performance by decreasing the number of times the operating system reads and writes data to the hard drive in the form of virtual memory.

  23. Before purchasing and installing additional RAM, consult the laptop documentation or the website of the manufacturer for form-factor specifications.

  24. repair center might provide service on laptops made by different manufacturers or just specialize in a specific brand and be considered an authorized dealer for warranty work and repair.

  25. If no local services are available, you might need to send the laptop to a regional repair center or to the manufacturer.

  26. A replacement battery must meet or exceed the specifications of the laptop manufacturer. New batteries must use the same form factor as the original battery

  27. To view the currently installed storage device

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Mapa Mental sobre chapter 7 laptops, criado por jadelusi em 16-05-2014.
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jadelusi
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