Flight computer

A flight computer was a type of manual, hand-held calculation tool, similar to a slide rule. 
This device was sometimes used on board the during the 2260s. () 
A operations division crewwoman was reading a flight computer as she walked through a corridor aboard the Enterprise in 2266. Around the same time, Bobby walked onto the bridge reading one briefly. () 
Spock later made a number of calculations on one in 2268, while the ship was held in place by a big green hand. ()
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Category:Computer technology