H ιστορική εξέλιξη των επικοινωνιών
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S.MORSE MORSE (1837) 1844
GRAHAM BELL, ELISHA GRAY ANTONIO MEOYTSI
GRAHAM BELLELISHA GRAYANTONIO MEOUTSI
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(FAX)
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:COSMOTE (GSM 1800 MHz)
VODAFONE (GSM 900 MHz)
WIND (GSM 900 MHz)
CYTA
(1960) -
(1973) M.COOPER
(1983) MOTOROLA 8000 1KG
4) (1992) SMS
5) (1998) BLUETOOTH HANDS-FREE
6) (1999) BLACKBERRY
7) (2002) NOKIA GPRS INTERNET
8) (2005) RING-TONES
9) (2007) i-PHONE
10) (2011) GOOGLE
1G
2G (E-MAIL, INTERNET)
2,5G (GPRS)
2,7G ( EDGE)
3G ( MMS, , )
4G (- )
HADOVER ( )
WI-FI
ROAMING
MMS-SMS
BLUETOOTH
;N, :
(.. ) ( 10 )
(: ,,)
HANDS-FREE KITS
SMS
(15cm)