Scott build a 4-bit single board computer using the Intel 4004 or Intel 4040 microprocessor. It features an 8-bit RC2014 bus, a multimodule socket, up to 8 RAM chips, onboard DC-DC converter, and either bit-bang serial or a UART.
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Magnetic Bubble Memory Mega-Post
Collection of magnetic bubble memory products and projects, featuring the 7110 magnetic bubble memory and it’s supporting chipsets. Projects for multibus, HP 9000, RC2014, and others.
Read MoreRestoring a vintage Intel Prompt 80 8080 microcomputer trainer / development system
Vintage 8080 Prompt 80 Trainer has a multibus 80/10 board inside. I fixed the power supply, added the Forth programming language, and added a speech synthesis multimodule.
Read MoreSetting up an iRMX86 operating system on a multibus 86/30 vintage computer
I modify a System 310 microcomputer and install the iRMX-86 operating system on it. This is a multibus computer with an SBC 86/30 CPU board and a SBC-215 winchester controller and an SBX-218 floppy controller.
Read MoreRestoring a Teleram Portabubble/81 vintage bubble memory computer
The Teleram Portabubble is a vintage computer that includes magnetic bubble memory. It was designed as a wordprocessor for reporters and authors to use on the road and includes an acoustical modem.
Read MoreVintage Industrial Multibus Computer Becomes a Nixie Tube Clock
Turn a vintage multibus computer into a Nixie Tube clock. Runs ISIS-II operating system. Has GPS and RTC timekeeping as well as speech synthsizers to speak the time.
Read MoreDesigning a TMS5220 Speech Synthesizer Multimodule
Scott designs a TMS5220 speech synthesizer for his multibus computer. Lots of background on interfacing and programming the TMS5220 and the TMS65100 speech ROM.
Read MoreMultibus and the MDS-80 Series II with Homebuilt IO Controller using Raspberry Pi.
ISIS-II on a multibus SBC-80/24A vintage single board computer, with a raspberry pi secondary CPU to provide a disk interface.
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