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Other Computer / System Cores • Q1 Computer Core Possible?

MISTerFPGA about 3 months ago

I randomly stumbled upon this article about a found-in-the-attic prehistoric computer: https://www.mirror.co.uk/ne... ... s-32146932I must admit I've never heard about it (or forgot if I did) and was quite surprised to see how good looking and co …

Did the MITS Altair 4K Board Not Work Back In The Day?

VCFed about 3 months ago

I've been reading books on the early days of the computer market and many stated the MITS Altair 4k board did not work reliably. Unfortunately, none of them have detailed what that meant. I was wondering if anyone here could explain if there was an issue w …

1976 Select Woods Edit-1 Paper Tape and 1977 1st UpDate: $????

VCFed about 3 months ago

Hi, I'm looking for a collector ... I have a few paper tapes for sale/trade from back in the day. These are about 47 or so years old ... The Select Woods Edit-1 is one of the very first text editors that came out for the Altair 8800 computer before wo …

Altaids 8085

VCFed about 4 months ago

For some reason, I had an interest in playing with an 8085. Nothing too serious, just enough to capture the flavor of those past days. I was looking for a minimal system and some minimal effort, because this was strictly for S & G. I looked into a min …

General Discussions • many cores suddenly not working?

MISTerFPGA about 4 months ago

After moving my Mister from one location to the other, many cores stopped working correctly and now produce black screens / system halts. Nothing out of the ordinary happened when I moved it from one side of the room to the other, nor were any updates app …

Upgrading my main PC

VCFed about 5 months ago

I've no problem spending on vintage hardware, but when it comes to the current stuff I'm notoriously cheap and usually subsist on castoffs. However while doing my Altair video I finally reached the limits of my patience with the GTX 1650 I've had for 2 ye …

What happens when an Altair hits an octal number higher than 377?

VCFed about 5 months ago

I've been working on a video about my Altair and goofed. I was doing the math program from the example guide and added 1+1.. which worked swimmingly. Then I thought I'd try adding 2 and 3. Unbeknownst to me, I had accidentally left the left most data sw …

For Sale/Trade ... : $US

VCFed about 5 months ago

Hi, What I have to trade or sell: ADS PROM Blasters IMSAI RAM-4A Rev2 Static RAM Jade Computer Products Serial/Parallel Interrupt board MITS 88-S4K (Bare Board) XITEX Dallas SCT-100 Composite Video + Original Manual TeleTek SBC-1 Z80 CPU w/Manual SSM 4K …

For Sale or Trade

VCFed about 5 months ago

Hi, Boards I am looking for: Cromemco 32K ByteSaver Processor Technology VDM-1 Morrow Thinker Toys Disk Jockey II CompuPro RAM 17 SSM IO4 ExpandoRAM 64K board WameCo EPM-1 EEPROM board Sol-20 System/Buss Probe board MITS Altair 88-MU1 Systhesizer Board …

I need a 32K ByteSaver board ... a VDM-1 board ... and a Thinker Toys Disk Jockey II board ...

VCFed about 5 months ago

Hi, Boards I am looking for: Cromemco 32K ByteSaver Processor Technology VDM-1 Morrow Thinker Toys Disk Jockey II CompuPro RAM 17 SSM IO4 ExpandoRAM 64K board WameCo EPM-1 EEPROM board Sol-20 System/Buss Probe board MITS Altair 88-MU1 Systhesizer Board O …
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Altair BASIC VER 2.0?

VCFed about 5 months ago

I recently had Altair BASIC VER 1.0 loading from paper tape on an IMSAI 8080. The binary came from Mike Douglas' DeRamp.com site. (Details at https://ef1j.org/wiki/index... Here's a shot of the cold start routine messages: My ques …

Altair-Duino Pro with external 6-Slot Backplane and extras ...

VCFed about 6 months ago

Hi, I have too many Altair-Duino Pro computers and I need the space in my tiny apartment, so I'm selling this Altair-Duino Pro ... it's already boxed-up in heavy duty box ready for shipping ... or make an offer. I have made a couple of videos in the pas …

Altair 8800bt Parts

VCFed about 6 months ago

Hi! I have an Altair 8800bt case, PSU and turnkey card. I am trying to find an 8800b CPU card and the turnkey PCB along with the front dress panel. I was bidding on an 8800b CPU card but for some reason they seem to go for $400+ in the usual crazy biddi …

Looking for an Altair 8800

VCFed about 6 months ago

I'm sure there's lots of others out there wanting one of these, but I thought I'd throw my hat in. If you are in the US, I have a relative who can receive delivery in Chicago, so the sale can be left domestic. Any condition is acceptable, I'm looking f …

Programming Altair confusion

VCFed about 6 months ago

In addition to other projects I've been proving out my Altair 8800 by running some programs including some famous ones. I'm decently good at it now but I get confused when the author expects you to enter in your own values for something, particularly memo …

Help with IMP245 + XMODEM for downloading files from my Dial-UP CBBS ...

VCFed about 6 months ago

Hi, I have CBBS working on both my Altair 8800c w/a Martin Eberhard 88-2SIOJP board, and now I'm running CBBS 24/7 on my IMSAI-JAIR computer with a PMMI modem. The CP/M BIOS strips the 8th bit off characters so to work around that, I need to run XMODE …
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Other Computer / System Cores • Electronic Games/Electronic Board Games + MADrigal Simulators

MISTerFPGA about 7 months ago

I've enjoyed the MADrigal Simulators for years: http://www.madrigaldesign.i... ...and it has been ported to many platforms. These are a nice companion to the Game & Watch core, and I wondered if a port be possible for MiSTer. Maybe …

Replacement for Altair Cassette Interface

VCFed about 7 months ago

Since the Altair Cassette Interface is difficult to find - and expensive when you do - I've recently demonstrated a way to make a drop-in replacement using more readily available and less expensive hardware. See Mike D …

Altair CP/M without a disk controller

VCFed about 7 months ago

I have created a version of CP/M 2.2 for the Altair that does not require a disk controller. Instead, disk transfers are done through the second port on an 88-2SIO serial interface board and disk images are served from a PC. The server on the PC is the sam …

What would your computing machine of choice be at specific years?

VCFed about 7 months ago

I'm fascinated by all the different systems and choices that people had over time. If money were not much of an object, what system would you have had at these years, and what would you have used it for? What would you have liked about it that was better …
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GRIND : a Doom-like, first person shooter for a500!

EAB about 7 months ago

Grind is a first person shooter, set in a dark and foreboding Steampunk/Lovecraftian world. The game is a continuation (and spiritual successor) of the Dread project, powered by the amazing Dread-engine and offers unparalleled visuals and performance, e …

Altair 8800c (Reproduction MITS 8080 CPU, 88-2SIOJP and FDC+ boards)

VCFed about 7 months ago

Hi, I agree with Timo ... the basic Altair 8800c costs less than half the price he's asking for. IF he's added more S-100 boards to add more features, then perhaps it's worth more, but no photos or board listings etc. the whole post is on the edge of a …
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New Releases • New Relese - 2005 C64 Basic Games Compilation by Cout Games

Lemon64 about 8 months ago

https://coutgames.itch.io/... ... ompilationA collection of 28 games ported from various BASIC dialects to the Commodore 64 in 2005. 1. Acey Ducey Card Game2. A*Mazing3. Awari4. Ballistics5. Batnum6. Bowl7. Bug8. Simulation of Darts9. Dicegame10 …

Were these repro Altair 680 boards?

VCFed about 8 months ago

This came up on ebay for $350. I didn't buy but was curious if they were real boards. The date codes I could make out on the ICs were early 80s and the leds on the front panel board were odd looking. …

Vintage Computer Systems for sale

VCFed about 8 months ago

I am starting the process of selling off some of my vintage computer systems, so as to not burden anyone I leave behind. The systems I list here are available for viewing in Bedford, NH, just west of Manchester, NH. Anyone interested can send me an e-mai …