The first SMS message[8] was sent over the Vodafone GSM network in the United Kingdom on 3 December 1992, from Neil Papworth of Sema Group (now Airwide Solutions) using a personal computer to Richard Jarvis of Vodafone using an Orbitel 901 handset.
I am 5 letter word,
If all the 5 letters are available I am a talent in you,
If you remove my first letter I will die,
if you remove my first 2 letters I will be sick.
Who am I