simple 8086-based microcomputer
basic 8086 system timing
detailed SDK-86 board
SDK-86 complete schematics
address decoders
interrupts
8254
8259A
8255A
8279
keypress detection
8237 and 8272A
8272A
8251A
RS-232C
memory
including controllers
minimal 8086 system
displaying contents of CX register
IBM PC motherboard
credits