Tektronix TLA7012 Logic Analyzer Mainframe (option 18 - touchscreen installed) with TLA7AA3 102 Channel Module. The TLA7012 Portable and TLA7016 Benchtop mainframes are modular mainframes that accept TLA logic analyzer and pattern generator modules. The TLA7012 and TLA7016 can be configured as either master or expansion mainframes to provide solutions for large numbers of buses and high channel-count requirements. The TLA7012 Portable Mainframe and TLA7016 Benchtop Mainframe along with the TLAPC1 Benchtop Controller are built on a Microsoft Windows XP Professional PC platform that offers a familiar work environment for the TLA application software. They provide multiple display capability for extended desktop viewing, in addition to an internal DVD-RW, hard drive, and multiple USB 2.0 ports for expansion. A replaceable hard drive is standard on both mainframes, ideal for security or enabling individual team members to store personal setups and data. Trigger in/out connections provide an interface to other external instrumentation, such as DPO oscilloscopes, for correlating measurement results.