WEEK4

• Wireless types of technology allows what to speak (send data) to each other and to the web (TCP/IP Networks) without cables.

  Devices
• Also known as bluetooth and bluetooth low energy (BLE)

  IEEE 802.15
• This are wireless technologies used to transfer data over short distances.

  Bluetooth and Bluetooth Low Energy
• The technology is frequently used in small consider devices that connect users phone and tablets.

  Bluetooth and BLE
• The bluetooth standard was originally conceived by?


  Dr. Jaap Haartsen
• The bluetooth standard was originally conceived by Dr. Jaap Haartsen at Ericcson back in?

  1994
• What are the three industry leaders in 1996?

  Ericcson, Nokia, and Intel
• Intel, Nokia,Ericcson

  THree industry leaders that met to plan the standardization of this shot-range radio technology to support connectivity and collaboration between different products and industries.
• This bluetooth uses less power than standard bluetooth and is used in hardware such as fitness trackers, smart watches and other connected devices in order to wirelessly transmit data without heavily compromising the battery power in a user’s phone.

  Bluetooth Low Energy
• Bluetooth Low Energy

  Also referred to as Bluetooth Smart, is supported by the majority of smartphone and computer makers as well as most major operating systems including Windows 8, OS X, Linux, Windows Phone, Android and iOS
• In this year the Bluetooth Special Interest Group (SIG) was formed?

  1998
• In 1988 the this was formed, which to this day publishes and promotes the standard and its subsequent revisions.

  Bluetooth Special Interest Group (SIG)
• Bluetooth SIG initially only included Ericsson, IBM, Intel, Nokia, and Toshiba, but reached 4,000 members by the end of its first year.
• The first Bluetooth mobile phone was the?

  Sony Ericsson T36
• Surprisingly, the name dates back more than a millennia to King Harald “Bluetooth” Gormsson.
• What are the two things that King Harald “Bluetooth” Gormsson do to make him well known?

  1. Uniting Denmark and Norway in 958.
  2. His dead tooth, which was a dark blue/grey color, and earned him the nickname Bluetooth
• It was named after a 10th century scandinavian king Harald "Blatand" Gormsson?

  Bluetooth
• He was a viking king who ruled Denmark and Norway from the year 958 until 985.?

  King Harald "Blatand" Gormsson
• King haralds nickname "Blatand", which literally when translated in what langguage means bluetooth?

  Danish
• IEEE 802.15 or bluetooth can be used for?

  Connecting devices, File sharing, Hotspot tethering, Security
• Bluetooth technology allows you to connect devices without the annoyance of wires. Is a what of bluetooth?

  Pros
• One of the Pros of bluetooth is that when connecting devices with Bluetooth is quick and easy. Plus, once two devices connect for the first time, they’ll automatically connect in the future. This statement is?

  True
• Pros of using Bluetooth

  Bluetooth technology allows you to connect devices regardless of their manufacturer or operating system.
• Pros of using Bluetooth

  Bluetooth technology allows for devices to maintain multiple connections at once. For example, several devices can connect to a tethered hotspot using Bluetooth.
• One of the pros of using bluetooth is that Whenever connecting to a Bluetooth device for the first time, you’ll have to manually accept the connection. While it’s still possible for somebody to intercept your connection, this helps reduce the risk of unknown users connecting to your device. This statement is?

  True
• Using Bluetooth can drain your battery faster than a wired connection. This is a what of using bluetooth?

  Cons
• One of the cons of using bluetooth is that Bluetooth technology makes it easy for users to find other Bluetooth devices in the area, even if you’ve never connected with them before. This statement is?

  True
• Cons of using Bluetooth

  Most Bluetooth devices tend to lose their connection once the devices are further than 10 meters apart.
• Cons of using Bluetooth

  Transferring files over Bluetooth can be slower than other technologies such as USB or Wi-Fi.
• Why I can't Bluetooth from iPhone to Android?

  One of the main reasons for this is compatibility issues. In layman's terms, iOS allows the Bluetooth radio to connect only with a specific list of devices.
• Is an open global standard and is designed specifically to be used in M2M (Machine to Machine) networks.

  ZigBee
• This protocol has much slower speeds than WiFi, with only 250kbps data transfer speeds. 


  ZigBee
• Because of this lower transfer speed, devices can consume minuscule amounts of energy.

  ZigBee
• This uses radio waves (RF) to allow two devices to communicate with one another.

  WiFi (wireless fidelity)
• The technology is most commonly used to connect Internet routers to devices like computers, tablets and phones; however, it can be used to connect together any two hardware components.

  Wi-Fi
• Lowest cost: signal range is good and not easily obstructed. This is a pros of?

  802.11b
• Slowest maximum speed; home appliances may interfere on the unregulated frequency band. This is a cons of?

  802.11b
• The pros of 802.11a is that its fast macimum speed; regulated frequencies prevent signal interference from other devices, This statement is?

  True
• One of the cons of 802.11a is that highest cost; shorter range signal that is more easily obstructed, This statement is?

  True
• Pros of 802.11g

  Fast maximum speed; signal range is good and not easily obstructed