Page 4 - WIRELESS TECHNOLOGIES- BLUETOOTH AND WI-FI

WIRELESS TECHNOLOGIES

1.1 Introduction

What is Wireless Technology?

The term "wireless" refers, in the most basic and obvious sense, to communications sent without
wires or cables. It is a broad term that encompasses all sorts of wireless technologies and
devices, including cellular communications, networking between computers with wireless
adapters, and wireless computer accessories. Wireless communications travel over the air via
electromagnetic waves (radio frequencies, infrared, satellite, etc.).

The term wireless technology is generally used for mobile IT equipment. It encompasses cellular
telephones, personal digital assistants (PDA's), and wireless networking. Examples of wireless

technology include GPS units, garage door openers , wireless computer mice and keyboards,
satellite television and cordless telephones. Wireless networks have significantly impacted the

world as far back as World War II. With the use of wireless networks, information could be sent