The ProGear used a Transmeta chip and a resistive digitizer. The W7xx series were also available with a Wacom digitizer built into the palm rest. The input commands were entered using a digitizer tablet. The screen was designed for use with an optional pen-style digitizer. The CADDS-1 system featured a combination digitizer and plotter mounted on a large drafting table. For film cameras this step requires a negative or slide scanner or a video digitizer. The N-Trig digitizer interfaces to the XT by an internal USB port. TabletKiosk offered a hybrid digitizer / touch device running openSUSE. Computer processing of cephalometric radiographs uses a digitizer. The Calma digitizer is a backlit 48 by 60 inch table. All the necessary hardware components are stored within the casing of the display and digitizer. The acquisition chain is mainly made of a seismic sensor and a digitizer. In August 2013, MakerBot released the Digitizer, a 3D scanner. Gerber also introduced the Automatic Line Follower, the first automated digitizer for vector graphics. The digitizer technology belongs to the most accurate and cost-effective pointing devices.