Wireless Networking History and Implications. In the Beginning Marconi found in the 1890s that he...

Wireless Networking

History and Implications

In the Beginning• Marconi found in the

1890s that he could transmit electrical signals over two lines that were disconnected

• Wireless Telegraph and Signal Company

• Tesla held the first patent but Marconi is credited as being the “Father of Radio”

Overseas Communication• In 1901 the first

intercontinental wireless message was received

• The letter “S”• 1927 Came the first

commercial radiotelephone service between the U.S. and Britain

The 60s and 70s• The Telstar satellite

was launched into space in 1962

• ARPANET was commissioned in 1968

• The fist packet-switched networks came into play

• The first wireless network was created in Hawaii (ALOHANET)

Since the ALOHANET• The internet boom• The 802.11

standardizing wireless networking in 1997

• WiFi Hot-Spots in coffee shops, hotels and airports

Security Implications• Over-Air

communications can be sniffed fairly easily using free applications

• Wired Equivalent Privacy (WEP)

• TJ Max Having their credit card machines send credit card information using WEP

• WiFi Protected Access (WPA)

Wrap-Up and the Future• Wireless has been

around for over a century

• Since the University of Hawaii’s ALOHANET we have seen wireless networks all over.

• Wi-MAX

The End