I was thinking of the "tapes" that they used on TOS. Those little multi-colored flat block you saw so often. They are obviously a form of data storage. Diane Duane's novels referred to them as "Logic Solids." Personally I believe them to be basic mini hard drives. What's strange is that they carry these things around the ship, instead of sending the information electronically.
From a informational security point of view they make sense. If you don't completely trust your data transfer system (or your personnel), then you would either hand carry sensitive information, or convey it about the ship via a automatic delivery system in a hard form like a cassette (to use a term). There was a scene where Spock requests a piece of information from the computer, the cassette is delivered to Spock console, he takes it from one (delivery) slot and immediately places it in another slot to be read. the information wasn't just "sent" to his console. It's possible that they don't think that their conduits are shielded enough for certain information. Perhaps all the many computers aboard the Enterprise are firewalled not just from the outside universe, but also from each other.
I remember they did something like this on the nuBSG too. And supposedly the computers in the basement of the CIA can only be accessed from a small number of terminals inside the CIA building.
Now some of the computers would have to be networked, navigation and engineering, sickbay and various medical labs, but those two wouldn't need to be interconnected. And the crew's entertainment system wouldn't need to be hooked up to either of those.
Later during TNG, DS9 and VOY, the padd in some ways replaced the tape, again instead of sending information internally, people would hand carry padds to Picard, Sisko and Janeway, Janeway especially often would have a literal pile of padds on her desk. Even though she had a monitor a couple of feet away.
Question, do you think they didn't "trusted" their secure information system?

From a informational security point of view they make sense. If you don't completely trust your data transfer system (or your personnel), then you would either hand carry sensitive information, or convey it about the ship via a automatic delivery system in a hard form like a cassette (to use a term). There was a scene where Spock requests a piece of information from the computer, the cassette is delivered to Spock console, he takes it from one (delivery) slot and immediately places it in another slot to be read. the information wasn't just "sent" to his console. It's possible that they don't think that their conduits are shielded enough for certain information. Perhaps all the many computers aboard the Enterprise are firewalled not just from the outside universe, but also from each other.
I remember they did something like this on the nuBSG too. And supposedly the computers in the basement of the CIA can only be accessed from a small number of terminals inside the CIA building.
Now some of the computers would have to be networked, navigation and engineering, sickbay and various medical labs, but those two wouldn't need to be interconnected. And the crew's entertainment system wouldn't need to be hooked up to either of those.
Later during TNG, DS9 and VOY, the padd in some ways replaced the tape, again instead of sending information internally, people would hand carry padds to Picard, Sisko and Janeway, Janeway especially often would have a literal pile of padds on her desk. Even though she had a monitor a couple of feet away.
Question, do you think they didn't "trusted" their secure information system?
