Those that don't have graphical interfaces will have incredibly powerful text-based command shells that can correctly understand and execute commands typed in plain English. All computers are connected. You can access the information on the villain's desktop computer even if it's turned off. All computer panels operate on thousands of volts and have explosive devices underneath their surface. Malfunctions are indicated by a bright flash of light, a puff of smoke, a shower of sparks and an explosion that causes you to jump backwards.
People typing on a computer can safely turn it off without saving the data.
A hacker is always able to break into the most sensitive computer in the world by guessing the secret password in two tries. Movie modems usually appear to transmit data at the speed of two gigabytes per second. If you display a file on the screen and someone deletes the file, it also disappears from the screen. Computers can interface with any other computer regardless of the manufacturer or galaxy where it originated. Computer disks will work on any computer that has a floppy drive and all software is usable on any platform.