Sheldon's laptop is a laptop which is owned by Sheldon Lee Cooper. It is a red laptop, possibly a Dell laptop. Sheldon uses his laptop for work and sometimes to play games with Howard, Leonard and Raj. Sometimes, Sheldon Lee Cooper's laptop is seen in the California Institute of Technology. In the episode "The Parking Spot Escalation", Howard is seen using Sheldon's laptop in Sheldon's spot, as revenge for Sheldon taking Howard's $500 limited edition Iron Man helmet.
Sheldon Lee Cooper's Laptop has been stolen several times. In the episode "The Bozeman Reaction", towards the start of the episode, his laptop was possibly stolen due to Sheldon phoning the police and saying his belongings were stolen. Also, towards the end of the episode, Sheldon is at the bus station. His bags and belongings were stolen. His laptop was possibly stolen since it was possibly in the bags. Sheldon eventually gets his bags and belongings back.
In "The Solder Excursion Diversion" Sheldon's very old laptop dies and Amy buys him a new one. Even though Sheldon is skeptible, she knows him well enough o buy exactly what he wanted in a computer.