APC series

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The APC (Advanced Personal Computer) was a series of business microcomputers released outside of Japan by the NEC Corporation. The series comprised the APC, the APC II and APC III, international versions of models from the Japanese NEC N5200 series(jp). The 8086-based N5200, released in 1981, was the first computer to use the NEC μPD7220 High-Performance Graphics Display Controller. The better-known PC-9800 series, released a year later by the different division, had a similar architecture to the original N5200 and used many of the same components. The most significant differences between the two were that the PC-9801 had slightly lower vertical screen resolution, graphics were standard instead of optional (still using a second μPD7220) and it used 5.25" floppy drives instead of 8". The APC IV, despite sharing the series name, was an ordinary IBM PC/AT compatible and not compatible with the earlier APC models. The N5200 is a series of personal computers released in 1981. The APC is a version of the N5200 that was sold outside Japan. Although its computer architecture is very similar to the PC-98, it was developed and marketed in a different way. At that time, NEC was a vertical integrated company as seen in other big Japanese companies, and intended to open new business.