Vtg 1977 Motorola HEP Kit Educator II Microcomputer, 8 bit, w/Power Supply RARE

Description: For Sale: 1977 Motorola HEP Kit Educator II 8 bit computer kit Very clean, includes original power supply. Please note: this computer is untested and sold as-is with no warranty. The polarity of the cable that goes from the computer into the power supply is not clearly labeled with (+) and (-) so I don't want to risk turning on the computer. Please message me if you have any question ---------------------------------------------------------------------------------------From the June 1977 issue of IEEE Computer magazine: Motorola offers new NMOS microcomputer kit, Educator IIMotorola's HEP/MRO Operations group has introduced an 8-bit microcomputer system in kit form. Called the Educator II, the kit contains an NMOS 8-bit MPU, PIA, 128x8-bit static RAM, two TTL 512x4-bit ROMs, and a TTL clock circuit. The NMOS components are the HEP versions of the M6800 microcomputer products. Educator II utilizes the full instruction set and address modes of the MC6800 MPU. The clock frequency is approximately 625 kHz.An executive program, residing in the ROMs, contains routines for examining and modifying memory locations and MPU registers, servicing interrupts, transferring programs to and from cassette tapes, searching tapes for specific programs, and testing the finished kit. The executive uses 14 bytes of RAM for a scratchpad; the remaining 114 bytes are for user programs. An optional 128x8-bit RAM can be added to the pc board for larger user programs.Educator II is housed in an aluminum case. Front panel toggle switches and LEDs are used to enter and display machine code. Edge connectors on the pc board provide an interface to the PIA and address, data, and control busses for system expansion. According to Motorola, accessories planned for the near future include a keyboard kit, video display kit, a module card rack and power supply, memory modules, and applications programs on cassettes.----------------------------------------------------------------------------------- Ships within 1 day of payment via UPS GroundDelivery to most locations in 3-5 days. Professionally packed in a sturdy box to ensure that your Motorola Hep Kit Educator II computer arrives in the same condition as described in this listing.

Price: 995 USD

Location: Skokie, Illinois

End Time: 2023-09-27T19:39:17.000Z

Shipping Cost: 20 USD