How to unlock doors that "Require Computer"

[Jivebot]

I keep encountering doors that "require computer" to unlock. Lockpicking wont do the trick and none of them ever have any nearby computers to hack. What's the deal here?

[Ой у лузi червона]

turn off two midle switches

[Angry Nord-Grunge Syndicate]

Sometimes computer is on the other side of the door.
Find alternative route, maintenance duct in example, remember to check ceilings too, access to ducts could be in there.

There could also be red doors that can be opened by destroying bolts at each corner.

[Lowe0]

Those are essentially one-day doors; the computer that controls them is usually a few feet away on the other side of the door.

They're most often used as exit shortcuts once you finish a quest area. If you enter a new location and encounter one almost immediately, then that's what it's for.

Other doors will require a specific key; those are usually quest entrances, not exits.

[jonnin]

its a mixed bag. As noted many of them are just exit shortcuts, but that is maybe half at most. The other half, the computer is somewhat 'hidden', sometimes in a room with a lot of computer looking consoles and other times, just a desk that you don't normally need to get too close to. You have to step close to the right one and it will activate to be used, and from there its easy. Some of the computers are locked as well, and that just uses picks and security skill: the mantis puzzle has one of these to bypass it.

computers also control robot enemy (can make allied!) and turrets (same, make allied or turn off) and occasionally have useful info in them. Learn to recognize the 'hidden' terminals.