The whole world is virtually wireless with the help of the now famous broadband internet access. Now high speed browsing and faster downloads are now possible at the click of your mouse.
You may have heard that a wireless network is just a telephone or computer network that uses radio as their carrier or physical layer.

Here are some terminologies used
Wireless MAN – metropolitan area network
 
Wireless LAN – local area networks

Wireless PAN – personal area networks

GSM – Global standard for digital mobile communication, common in most countries except South Korea and Japan

PCS – Personal communication system – not a single standard, this covers both CDMA and GSM networks operating at 1900 MHz in North America

Mobitex – pager-based network in the USA and Canada, built by Ericsson, now used by PDAs such as the Palm VII and Research in Motion BlackBerry

GPRS – General Packet Radio Service, upgraded packet-based service within the GSM framework, gives higher data rates and always-on service

UMTS – Universal Mobile Telephone Service (3rd generation cell phone network), based on the W-CDMA radio access network
AX.25 – amateur packet radio

NMT – Nordic Mobile Telephony, analog system originally developed by PTTs in the Nordic countries

AMPS – Advanced Mobile Phone System introduced in the Americas in about 1984.

D-AMPS – Digital AMPS, also known as TDMA

Wi-Fi – Wireless Fidelity, widely used for Wireless LAN, and based on IEEE 802.11 standards.

Wimax – A solution for BWA (Broadband Wireless Access) and conforms to IEEE 802.16 standard.

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