The Big Bang Theory Wiki

Sheldon's laptop is a laptop which is owned by Sheldon Cooper. He is seen with many different models throughout the show, but he mainly is seen with the following 3 models: Dell XPS M1710 (S01 E1-S3 E13), Alienware M17x R2 (S03 E13-S09 E19), and an Alienware 17 R3 (S09 E19-S12 E24). Sheldon uses his laptop for work and sometimes to play games with Howard, Leonard and Raj. Sometimes, Sheldon's laptop is seen at the California Institute of Technology.

In the episode "The Bozeman Reaction", towards the start of the episode, his belongings, including his laptop were stolen and Sheldon called the police about it. While Sheldon eventually gets his belongings back, he has to get a new laptop to replace the stolen one.

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 later offers to sell that laptop to a dry cleaner at the end of the episode.

In "The Solder Excursion Diversion" Sheldon's three-and-a-half-year-old laptop dies and Amy buys him a new one. Even though Sheldon is skeptical, she knows him well enough to buy exactly what features he wanted in a computer.