What technology?

+ = ?

Note: 2 just represents its class of devices. You should not consider it in particular.

Cracked by: Kal , Raghuvansh , Rohan , ps , shrik , Bharath , Goyal , p vs np , madhur , Dibyo , Neeraj , Prasad , Ananth , udupendra , username , Vinay Nair , Chandrakant Nair , Pawankumar and Bipin Banavalikar.

Kal, Raghuvansh, Rohan, ps, shrik, Bharath, Goyal, p vs np, madhur, Dibyo, Neeraj, Prasad, Ananth, udupendra, username, Vinay Nair, Chandrakant Nair, Pawankumar and Bipin Banavalikar