three basic types of antennas are: omnidirectional; semidirectional and highly directional antennas.
typically when you purchase wireless access point and wireless NIC it has attached 2.14dbi omnidirectional antennas
A wireless router's antenna technology generally determines its Wi-Fi signal strength and hence its range. Generally speaking, 802.11g wireless routers offer better Wi-Fi range than comparable 802.11b units due to improved antennas.
Infrared can't be used as a technology for wireless networks because of its slow speed and limited functionality. Infrared is used for wireless communication at very small level.
Nope - it's the same system.
yes
The first wireless technology was developed well over 200 years ago. The first radio which is considered wireless was used in 1895 and sent a message across the English Channel.
There are basically ONLY two types of wireless technology: analog and digital. ALL "wireless" technology is radio technology.
Any PS2 wireless controller should be able to work on the PS1. A PS3 wireless controller will definitely not work on the PS2 and PS1, because they use Bluetooth as their wireless technology, whereas wireless PS2 controllers use 2.4GHz as wireless technology.
802.11g
frequency
Radio-waves are used in wireless technologies to transmit data between devices over a short distance.
When selecting a wireless network adapter for a wireless network, it is important to be aware of the technology and capabilities of the router. The latest technology used in wireless routers is 802.11N, which is backward compatible with older networking protocols such as 802.11g and 802.b. However, the performance of signal transfers of a wireless network adapter is limited by the technology used in the router. For example, a wireless-N adapter will not reach its full Mbps speeds of data transfer when connected to a wireless-G router.
Wireless use Wireless technology while DSL use wired technology.