I wasn't the only one enchanted by this small computer system, or to have it as a first computer.
Marc Bertrand has built a new, modern version of the Elf computer, visible at his web page. It's not only got the original video interface of the Elf II, but a nice LCD display driven by a PIC microcontroller. It has heaps of I/O ability through several interfaces, nicely controlled by some Altera programmable logic.
Have a look, it's a sweet little system with a layout very reminiscent of the original Elf II computer.
This isn't it, but it's a little test circuit for the 1802 microprocessor used in Elf systems that makes a nice LED blinky: