Easy one to begin the week.

What do you have to do to get a check like this, which famous computer scientist gives it and why is it $2.56?

Cracked by: Goyal , Rey de Vaqueiros , VikraM , Keerthi Kiran M , duriel , akhi , Atul Mathew , Ganesh Prasad , Rohan , jayanth , vinod , Ajay Parasuram , uma , Rithwik , gvivekcbe , joe , svgreatest , Abid , Abid , udupendra , madhur , priyananda , varuns88 , Debasish , pratap , yaksha , Dibyo , Biki , shenoyvarun86 , Tathagata Chatterjee , piezocake! phew!!

Goyal, Rey de Vaqueiros, VikraM, Keerthi Kiran M, duriel, akhi, Atul Mathew, Ganesh Prasad, Rohan, jayanth, vinod, Ajay Parasuram, uma, Rithwik K, gvivekcbe, joe, svgreatest, Abid, Abid, udupendra, madhur, priyananda, varuns88, Debasish, pratap, yaksha, Dibyo, Biki, shenoyvarun86, Tathagata Chatterjee and piezocake