1. Identify common wireless devices and their application to business
Common wireless devices are the blackberry; the Treo 750; the Motorola; Apple iPhone. These wireless devices are important to business because they can make productive use of time that was formerly wasted; people can take these devices with them wherever they go, resulting in 24/7 access. Also, these wireless devices allow businesses and business people to allocate their working time around personal and professional obligations.
2. Describe the various types and general characteristics of wireless transmission media/technologies - microwave, satellite, infrared and radio waves.
The main types of wireless transmission media/technologies are microwave, satellite, infared and radio waves.
-Microwaves: widely used for high-volume, long-distance, line of sight communication
-Satellite: satellites, like microwave transmission, receive and transmit data via line of sight. However, satellites leave an enormous footprint
-Radio: uses radio-wave frequencies to send data directly between transmitters and receivers
-Infared: infared light is red light that is not commonly visible to human eyes. Common applications of infared light are in remote control units for televisions, VCRs, DVDs etc. Infared transceivers are used for short distance connections between computers and peripheral equipment and local area networks.
3. What is bluetooth/how is it used?
Bluetooth is an industry specification used to create small personal area networks. It is used for communication among computer devices close to one person. Bluetooth can link up to eight devices within a 10 metre area using low-power, radio based communication. It can transmit up to 2.3 Mbps.
4. What are WLAN's, Wi-Fi, WWAN's, 3G?
Wi-Fi is a wireless protocol used in medium range wireless LAN’s, called a WLAN.
It enables 1.Easy Access to the Web; 2.Enables Access to ‘live’ information; 3.Remove Cabling & Wiring; 4.Reduce the requirements for hubs/switches. 3G uses digital signals and can transmit voice and data up to 384 Kbps when the device is moving at a walking pace, 128Kbps when moving in a car, and up to 2 Mbps when the device is in a fixed location.
5. What are the drivers of mobile computing and mobile commerce
The drivers for Mobile Computing and Mobile Commerce include widespread availability of mobile devices; no need for a PC; the "cell phone" culture; declining prices and bandwidth improvement
6. Explain the nature of RFID
RFID is the term for technologies that use radio waves to automatically identify the location of individual items equipped with tags that contain embedded microchips.
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