| 摘要 |
An information storage and retrieval system including an information containing cartridge and an apparatus for retrieving information therefrom is disclosed herein. The cartridge contains its information within a housing having an opening for gaining access to the information stored therein by the retrieval apparatus. At the same time, the cartridge housing carries a cover movable between a first position for covering the opening in order to protect its interior from dust and other elements in the ambient surroundings and a second position for uncovering the opening in order to gain access to the information stored within the cartridge.
|
