You'll see things here that look odd, even antiquated to
modern eyes. Phones with cords, awkward manual valves, computers that barely deserve the name. But all of it is intentional. It's all designed to operate in combat against an enemy who could infiltrate and disrupt all but the most basic computer systems.
Of course, those attitudes have changed through the years and Galactica is something of a relic. A reminder of a time when we were so frightened by the capabilities of our enemies that we literally looked backward for protection. Modern battlestars resemble Galactica only in the most superficial ways...