1,15 kilogrammli telefon

 


Jon Mitchell birinchi Motorola DynaTAC mobil telefonida
gaplashmoqda, AQSh, 1973 yil
Uning og‘irligi 1,15 kilogramm bo‘lgan, 
hech qanday funksiyasi yo‘q,
batareyani kutish rejimida 8 soat, 
suhbatda esa 35 daqiqa quvvatlagan, 
batareyani zaryadlash uchun esa 10 soat vaqt ketgan.

 

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