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PORTS, HW, HEALTH CONCERNS
Discovering Computers 2014: Chapter 3 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.
PORTS
PORT TYPES
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
DISCOVERING COMPUTERS 2014: CHAPTER 36
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
Page 135
Figure 3-27
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.
DISCOVERING COMPUTERS 2014: CHAPTER 38
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
Page 135
Figure 3-28
Discovering Computers 2014: Chapter 3 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
TO EASE EYESTRAIN
11DISCOVERING COMPUTERS 2014: CHAPTER 3
HEALTH CONCERNS OF USING TECHNOLOGY
Page 138
Figure 3-31