This group is a "virtual pub" (no team colours) open to anyone for the discussion of topics focussed on but not exclusive to vintage or retro computing.

Use it to discuss ideas, share information, show off achievements, learn, teach, hang-out.

All levels of expertise are welcome, from "What's a Z80?" to "I design chips for Intel..."

Examples of possible topics (by no means exclusive)

retro/modern kits and peripherals: SC1xx, RC2014, LINC80, YAZ180 etc
Early home computers: Apple II, Commodore 64, TRS-80, ZX-80/81 etc
Specific chips: MPUs, MCUs (8051, TMS1000) , CPLD, FPGA
Bus standards: serial, parallel, SPI, i2C, ethernet etc
Operating Systems: CP/M, FUZIX, Z-System
Programming languages: Assembler, C, PASCAL, FORTH, BASIC etc
ROM Monitors: Grant's Monitor, ROMWBW, SCM, z80ctrl, busRaider
Emulation: Alan's simulator, SIMH, Grant's Multcomp
New board designs
EDA tools- KiCad, EasyEDA, Eagle, Quartus, Vivado
PCB design

Notes:

If your email address is or appears to be "corporate" Google will sometimes mark your post as SPAM. It will automatically go into a moderation queue. Rest assured that it will be accepted (assuming it is not really SPAM) and your address will be whitelisted.

Simple 80 - IO ports

Derek Cooper