Hackers' Pub

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`"` keyword `"`	Finds the string within quotes, including spaces. Case-insensitive. (Escape quotes inside with `\"`)	`"Hackers' Pub"`
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`lang:` ISO 639-1	Finds content written in the specified language.	`lang:en`
`#` tag	Finds content with the specified tag. Case-insensitive.	`#HackersPub`
condition condition	Finds content that satisfies both conditions on either side of the space (logical AND).	`"Hackers' Pub" lang:en`
condition `OR` condition	Finds content that satisfies at least one of the conditions on either side of the OR operator (logical OR).	`#HackersPub OR "Hackers' Pub" lang:en`
`(` condition `)`	Combines the operators within the parentheses first.	`(#HackersPub OR "Hackers' Pub" OR "Hackers Pub") lang:en`

gloriouscow @gloriouscow@oldbytes.space

1/18/2026, 7:28:49 PM

Public

I bought this board off eBay for the 386EX, but now that I look at it, it appears somewhat interesting.

All those socketed dip chips on the bottom board are ULN2003AN Darlington transistor arrays. They're an open collector design.

The square chips on the left are NEC uPD71055 3x parallel interfaces.

#retrocomputing

A photo of two PCBs stacked on top of each other - the smaller board is a 386EX single-board computer with ROM, SRAM , watchdog and an RTC. header pins connect it to the board below, which has a bunch of darlington arrays, 6 40 pin headers, and 4 NEC parallel interface chips.

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