Complex sentence: The HP Pavilion 5030 was technically HP's second multimedia PC designed specifically for the home market, the first called HP Multimedia PC; model Numbers 6100,6140S and 6170S.
Split into simpler sentences: The HP Pavilion 5030 was technically HP's second multimedia PC designed specifically for the home market. The first was called the HP Multimedia PC; model numbers were 6100,6140S and 6170S.