1. PORTS, HW, HEALTH CONCERNS

2. PORTS AND CONNECTIONS Bluetooth Short range radio signals between Bluetooth enabled devices Normal range within 33 feet Bluetooth wireless port adapter will convert a USB port into Bluetooth. DISCOVERING COMPUTERS 2014: CHAPTER 32

3. PORTS

4. PORT TYPES

5. USB PORT UNIVERSAL SERIAL BUS PORT -Up to 127 devices with one connector Type of Devices: Card reader Digital camera External hard drive Game console Joystick Modem Mouse Optical disk drive Printer Scanner Smartphone Speakers USB flash drive Webcam

6. PROTECTING HARDWARE A surge protector, also called a surge suppressor, uses electrical components to provide a stable current flow and minimize the chances of an overvoltage reaching the computer and other electronic equipment DISCOVERING COMPUTERS 2014: CHAPTER 3 6 Page 135 Figure 3-27

7. DOCKING STATIONS External device that attaches to a mobile computer or device, contains a power connection and provides connections to peripheral devices Docking stations also may include slots for memory cards, optical disc drives, and other devices. With the mobile computer or device in the docking station, users can work with a full-sized keyboard, a mouse, and other desktop peripheral devices from their traditional laptop, ultrathin laptop, or tablet.

8. PROTECTING HARDWARE An uninterruptible power supply (UPS) is a device that contains surge protection circuits and one or more batteries that can provide power during a temporary or permanent loss of power DISCOVERING COMPUTERS 2014: CHAPTER 3 8 Page 135 Figure 3-28

9. HEALTH CONCERNS OF USING TECHNOLOGY A repetitive strain injury (RSI) is an injury or disorder of the muscles, nerves, tendons, ligaments, and joints Computer vision syndrome (CVS) is a technology-related health condition that affects eyesight Ergonomics is an applied science devoted to incorporating comfort, efficiency, and safety into the design of items in the workplace Technology addiction occurs when the technology consumes someone’s entire social life DISCOVERING COMPUTERS 2014: CHAPTER 39

10. TO EASE EYESTRAIN

11. HEALTH CONCERNS OF USING TECHNOLOGY 11 Page 138 Figure 3-31 DISCOVERING COMPUTERS 2014: CHAPTER 3