Final Score: 8.11

Creativity
8
Very creative and great concept for storage.
Implementation
9
Implementation is good.
Originality
7
Have seen similar things in modpacks.
Creativity
9
Creative idea, I liked how through the concept was thought out.
Implementation
10
It worked pretty dang good though.
Originality
5
Original not quite, storage mods have been done multiple times. One of which in this contest, and others in plugins like "SlimeFun" and "Storage Bins"
Creativity
8
Very interesting way to get more storage out of one block, I really like it.
Implementation
9
Assuming the terminal is a large chest (wasn't explained), it works very well, and I like the modules that need to be attached to the terminal. (Side note: Your issue with items dissapearing is caused by the lack of checking for the InventoryDragEvent)
Originality
8
I haven't seen too much about essentially making larger chests, so this is a pretty unique way of going about it.