XTIDE Universal BIOS makes it possible to use modern large ATA hard disks or Compact Flash cards on old PC's. You can then enjoy quiet or noiseless drives with more capacity than you'll ever need for old computers.
XTIDE Universal BIOS (also known as simply "XUB") can be used on any IBM PC, XT, AT or 100% compatible system. On AT systems you can use any 16-bit ISA or VLB IDE or Multi I/O controller. For XT systems you can use XTIDE rev1 (not available anymore), XTIDE rev2 or JR-IDE/ISA.
All BIOS binaries available here must be properly configured with the configuration tool XTIDECFG.COM before flashing/programming to ROM. In addition to configuring the BIOS file for use with your specific hardware you must also make sure the file is checksummed by saving the file to disk as that will create the padding and checksum required for installation in a computer. Always use the version of XTIDECFG.COM supplied together with the BIOS files.
Source code: https://www.xtideuniversalbios.org/browser
An FPGA powered hardware platform for emulating the MOS 6581 and 8580 SID chips. It is a fully functional device that can be installed into a Commodore computer as a pin-compatible replacement.
Get your vintage computer connected to BBS's and more! It can act as a Modem, PPP ISP or a SLIP Ethernet adapter! A robust web user interface for easy access to settings, commands, and a file manager. A 2MB flash filesystem which allows you to copy files to and from your vintage computer. The ability to host your own web pages on the device! Just upload HTML and javascript to make your own custom stuff!
This project is a VGA card for Apple II computers to ouput a crisp RGB signal to a VGA monitor instead of having to rely on the composite output. This is accomplished by snooping the 6502 bus and creating a shadow copy of the video memory within a Raspberry Pi Pico, then processing the raw video memory contents to output a "perfect" signal.
- Generates a 640x480@60 VGA signal with 3 bits per color channel using resistor DACs
- Text mode (monochrome)
- Lo-res mode with no color fringing between the chunky pixels
- Double Lo-res mode (Apple IIe only)
- Hi-res mode with simulated NTSC artifact color
- Double Hi-res mode (Apple IIe only)
- Mixed lo-res and hi-res modes with monochrome text and no color fringing
- 80 Columms text support (Apple IIe only)
This is a pair of PCBs that implements a version of the Apple II VGA design. Please see the Apple II VGA Project for details and firmware. This version differs from the original in that:
- It makes use of the Rpi Pico's regulator for 3v3 supply
- It allows the SYNC signal to be optionally routed to the Rpi Pico (instead of allowing Apple II bus read operations)
- It uses a fourth 74LVC245A instead of a 74LS07 for the remaining bus signals (fewer unique components)
I write about security, privacy, vulnerabilities and exploits, retro computing, music, various programming languages, personal projects and general stuff that crosses my mind. Make sure you use encrypted email when sending me any sensitive info.
Tor mirror: http://sizeofaex6zgovemvemn2g3jfmgujievmxxxbcgnbrnmgcjcjpiiprqd.onion/
The RAD Expansion Unit is a cartridge/expansion for the C64 and C128 using a Raspberry Pi 3A+, 3B+ or Zero 2 to implement the actual functionality. Currently it emulates a RAM Expansion Unit up to 16mb (compatible to CBM 1700/1750/1764 REU, CLD Super 1750 Clone, CMD 1750/1750XL) and a GeoRAM/NeoRAM memory expansion up to 4mb. It also features a menu to browse, manage and launch REU- and GeoRAM-images, NUVIEs, and PRGs. The RAD is designed to not only emulate existing extensions, other things that have already been tested (but not yet included here) are, for example, MOS 6510/8500 emulation (incl. turbo mode) or using the RAD as a (co-)processor (in fact the menu runs on the ARM CPU only).
RAD's functionality is entirely defined by software. The connecting circuitry is quite simple and does not include any programmable ICs and is thus easy to build.
Among other devices, Keelog sells a line of replacement power supplies for retro computers, from the Commodores to Amigas to Ataris. They are all brand new designs engineered with longevity and safety in mind.
The WiFi Retromodem is a non-destructive replacement of the PCB in an external Hayes Smartmodem 1200 or 2400. Note: while it will fit in the later Smartmodems, the LEDs of the Retromodem in the Hayes Optima series aluminum cases are offset slightly from the letters below. The Retromodem is based on the ZiModem software available on Github. This new version also supports simulated audio dialing just like a real Smartmodem connected to a phone line.
The board can be purchased from this page.
The NeoFloppy is an non-mechanical / solid-state media format optimized for handling, transport, storage, archive and subsequent use. It is only using the mechanical specification of the 3,5" FDD to a specific extent. Namely: Drive mechanisms (except the head since the drive only needs to vertically contact pins behind the shutter) and the media dimensions.
This guy reverse engineers the motherboards of classic computers (Commodore, Amiga, BBC, Amstrad) and their peripherals (1541, Vidiot) and makes brand-new implementations of the boards to replace failed ones. For some you can even buy matching part kits. You're pretty much on your own for most ICs, though.
A database of motherboards, BIOS images, chipsets, manufacturers, drivers, software. If you have an ancient PC and you're trying to figure it out, check here first.
The Brewing Academy LLC is located in Woodland, California, USA near Sacramento. We have been in Woodland since 2015 and have been operating in one form or another since 2005. In the past, we noticed that a lot of cool stuff came out for the Atari and the TI 99/4a and the Commodore, but that it always disappeared after awhile making it incredibly frustrating AND expensive for people to use their older computers. So, we decided to change that1 Our belief is that we find the coolest retro stuff we can and make sure we keep it available as long as possible.
A company that sells NOS (new old stock) floppy disks and floppy drives. Mostly 3.5", some 5.25" and even 8". Still sealed and recycled disks. Can transfer stuff from floppy disks en masse as a service. They also buy lots of floppies.
Archives of old technical magazines and journals. Mirrors of particularly important retrotech archives.
Mirror friendly as long as you use anonymous rsync. Please note that their archive is rapidly approaching 1TB in size, so you may wish to think carefully about what you want and why.
An interesting operating system with file system compatibility to CP/M-80 (and other similarities).
"What I (Richard A. Leary) have done is attack the software side of the problem in order to make any 6502 system a truly workable disk based system. In addition a degree of compatibility is now possible not only between 6502 systems but with large parts of the world of CP/M systems. The result of my efforts is a system of software which I have named DOS/65."
With over 100TB in our repository, we are quite possibly the largest repository of its kind on the web!
The repository mainly contains Windows and Apple betas. These are the most popular files and are enjoyed by most of our members on the forum. We also have a games repository which has a huge selection of older and more modern game betas. We like to widen our scope a little bit too, so our repository stocks old abandonware classics from various consoles and computers from many years ago.
Sells storage adapters, upgrades, and accessories for classic 8-bit computers, including the Atari and Commodore.