Little "NorthStar" Z80 SBC Running a Ripple Pattern.
Cool running. Little Z80-SBC (single board computer), designed & built locally, running a ripple pattern on the on-board display. We can load code to and save from, the little 56K memory area. Program Z80MON written using "zasm" assembler, allows reading and writing to RS-232 serial port. Currently, uses the Linux "screen" program to communicate with it. Not fast (only 10mhz), but runs Microsoft Z80 Basic, which can do floating-point calcs, and it fits in 8K! With the Z80MON in first 8K of ROM, the MS-Basic can be loaded and still offers 48K of user space - enough to do a little matrix multiplication. I believe the Zilog chips are manufactured in the Phillipines. Leaks no detectable RF, has no radio circuits, not even a video driver on the board. Real "Ghost Fleet" technology, it is. :)