What does ETX stand for? 

ETX

ETX, standing for Embedded Technology eXtended, is a highly integrated and compact computer-on-module form factor that can be used in a design application much like an integrated circuit component. Each ETX COM integrates core CPU and memory functionality, the common I/O of a PC/AT, USB, audio, graphics, and Ethernet. All I/O signals as well as a full implementation of ISA and PCI buses are mapped to four high-density, low-profile connectors on the bottom side of the module. ETX boards are available with AMD Geode, VIA, Intel Atom, Pentium, Celeron and Core Duo processors. XTX offers a 75% pin-compatible upgrade path to ETX standard. XTX drops the ISA bus and adds PCI-Express, SATA, and LPC. COM Express was released in 2005 from PICMG.

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