Factual error: All of the computers show a Mac OS when they're booted up. However, when Peter is shutting his computer down to try to escape his boss, the computer shuts down to a C: prompt. For those not technically minded, a C: prompt is only seen on IBM-compatible PCs, never on Macs. (00:19:20)
Factual error: Following on the previously submitted mistake about the MacOS and the C: prompt, when Michael is loading the penny-fraction program he is using a Mac but his hand is on a two-button mouse, which Macs don't have.