Complex sentence: ETA later released a port of UNIX for the ETA-10 line, which was more quickly accepted by their customer base though it started as a single-processor kernel which did not transparently exploit the hardware architecture with up to 8 large application CPUs for applications.
Split into simpler sentences: ETA later released a port of UNIX for the ETA-10 line, which was more quickly accepted by their customer base. However, this port started as a single-processor kernel which did not transparently exploit the hardware architecture with up to 8 large application CPUs for applications.