The carriers are plates that the TeraPack magazines snap onto. The carriers move along a track inside the library, and move the TeraPacks so that they can be positioned in front of the drives and TAP.

The DIB is located in the back corner of the drive carrier. The fans and drives connect to the DIB.

The elevator is the component in the T50 library that is used to move tapes between magazine slots and drives. It is also somethings referred to as the robotics.

A FRU is a library component that can be replaced in the field by a trained FE.

The LCM is responsible for controlling the front panel functions of the library, configuring library settings, providing Ethernet access for the RLC (Remote Library Controller), and running the robotics.

LTO is an open-standards magnetic tape technology governed by the LTO consortium. The standard form-factor of LTO is called "Ultrium." The LTO standard dictates that any LTO tape written in one LTO drive can be read in any other LTO drive, regardless of the manufacturer. Similarly, any LTO drive should be able to utilize any LTO tape of a supported generation, regardless of the manufacturer.

The TAP is the opening in the front of the library, through which TeraPack magazines are inserted and removed.

The TeraPack is a plastic magazine that holds up to five tapes. The TeraPacks rotate around the drives on carries, so they can be positioned in front of the drives and TAP.