This presentation compares cordless phones and cellular phones. It provides a brief history of both technologies, noting that cordless phones were invented in the 1960s while the first commercial cellular network launched in 1979 in Japan. The presentation outlines some key differences between cordless and cellular phones such as portability, interference, health concerns, multipurpose capabilities, and market share. It also discusses how each technology can adversely affect health, performance, and security.

1. Presentation On Cellular Phone V/S Cordless Phone
By
Akash Kumar
(PGDM II TRIMESTER)
GUIDED BY : PROF. INDRYANI KATTI

3. CORDLESS PHONE

4. HISTORY
• A jazz musician named Teri Pall invented a
version of the cordless phone in 1965 .
• She sold her rights to the cordless phone in
1968 to a manufacturer who modified it for
practical use.
• George Sweigert, an amateur radio operator
and inventor from Cleveland, Ohio, is largely
recognized as the father of the cordless
phone.

5. • He submitted a patent application in 1966 for
a "full duplex wireless communications
appartus".
• The U.S. Patent and Trademark Office awarded
him a patent in June 1969
• Filed 03/11/1974, Douglas G. Talley and L
Duane Gregory applied for and were granted (
08/02/1977) US Patent 4039760 for a duplex
voice communication.

6. Cellular phone

7. EVOLUTION…..

8. HISTORY
• The world's first commercial automated
cellular network was launched in Japan by
NTT in 1979, initially in the metropolitan area
of Tokyo.
• The first 1G network launched in the USA was
Chicago-based Ameritech in 1983
• In 1991, the second generation (2G) cellular
technology was launched in Finland by
Radiolinja on the GSM standard.

9. • Ten years later, in 2001, the third generation
(3G) was launched in Japan by NTT DoCoMo.

10. CORDLESS V/S CELLULAR
• Portability
• Interference
• Health Concerns
• Multi-purpose
• Cordless-cell Combos
• Market Share
• Adverse Affect
• Health
• Performance
• Security