Another Uber simple question. What are these Microsoft geeks playing Pac-Man on?

Very close to the most cracked question on Boiledbeans! Cracked by: Keerthi Kiran M , Dibyo , varuns88 , Atul Mathew , svgreatest , Goyal , Rc , udupendra , Amith , Prasad , anirudh patil , krishnendu , Ajay Parasuram , Keerthi M R , Kamal Rathi , joe , Priya , RajT , Ashwin , Rohan , jayanth , vijayaraghavan , prasanth , Archana , Poornima , akhi , Tathagata Chatterjee , duriel , malcaluffin , piezocake , Sine , yaksha , Siddharth Jain , Pulkit Gupta , rubhatta , srikar , rajeshvj , madhur.

Keerthi Kiran M, Dibyo, varuns88, Atul Mathew, svgreatest, Goyal, Rc, udupendra, Amith, Prasad, anirudh patil, krishnendu, Ajay Parasuram, Keerthi M R, Kamal Rathi, joe, Priya, RajT, Ashwin, Rohan, jayanth, vijayaraghavan, prasanth, Archana, Poornima, akhi, Tathagata Chatterjee, duriel, malcaluffin, piezocake, Sine, yaksha, Siddharth Jain, Pulkit Gupta, rubhatta, srikar, rajeshvj and madhur