3Com 3c509
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3Com 3c509 is a line of Ethernet IEEE 802.3 network cards for the ISA, EISA, MCA and PCMCIA computer buses. It was designed by 3Com and put on the market in 1992, followed by the improved version 3c50
3Com 3c509B-Combo card (3C509BC), second generation for the ISA 16-bit bus and 10BASE-T, AUI and 10BASE-2.
3C509B-Combo 1996 ASSY 03-0021-004 REV-B
Realtek
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Realtek Semiconductor Corp. is a Taiwanese fabless semiconductor company situated in the Hsinchu Science Park, Hsinchu, Taiwan. Realtek was founded in October 1987 and subsequently listed on the Taiwa
3Com 3c509
…NE2000 - 1987, Novell's NE2000 network card RTL8139 - 1999, Realtek 8139 PCI network chip jaapsch.net - 27C256 256K (32K x 8) CMOS EPROM…
Headquarters in Hsinchu Science Park
ALS 100 Audio Chip
A RTL8139C chip as seen on a broadband adapter for a Sega Dreamcast video game console
EGA graphic card with Realtek RTG3101