I don't know how popular this will be, but if you don't have an A8, you should get one - Simplz. I Thought I'd start a thread on the 8 bit Atari line of computers and see where it leads. To start things off, here's mine. It's a 600XL, upgraded to 64k using a Lotharek upgrade. It runs the Ultimate 1MB board to give the machine a true PBI BIOS as well as native support for HSIO (High Speed SIO) and the ability to configure the device with a number of different kernel ROM's as well as BASIC revisions - Effectively I can configure the machine to be identical to an XE for compatibility reasons and I can save my configurations to four slots for easy selection. It also has a SIDE3 cartridge, which when combined with the U1MB acts as a true PBI hard drive using SD card storage, it uses DMA so speeds are pretty damn impressive. SIDE3 also has it's own graphical loader for mounting and loading titles directly, that's accessible by holding 'L' on boot. Images can be assigned to drive numbers or loaded directly from the loader. As an operating system, it runs SpartaDOS-X, which is literally identical to MS-DOS, if not better. As far as 8bit operating systems go, it's definitely one of the most powerful single user operating systems I've ever used. The RF modulator has been removed in preparation for the Sophia 2 DVI upgrade board. However I modded the machine to have separate chroma and luma out which when running into my Sharp Aquos TV via svideo results in a picture that's so good I'm struggling to justify the purchase of Sophia 2, but I've gone this far - I may as well get one. I also have a home made SIO2PC cable that connects to my Pi400 with RespeQt software allowing for virtual HDD's/floppies in a variety of formats and configurations at speeds as fast as divisor 0, allowing for ~8000bps running a 512 bytes per sector HDD image. My Pi400 also runs FujiNet-PC allowing me to mount and load software images directly off a number of internet based servers. I also use FujiNet-PC's built in R: handler (RS232 driver) as a virtual modem to connect to my favorite BBS's - And there's an awesome community out there! I always find the BBS based communities are friendlier and more helpful than the web based forums where every purist just wants to bag out Commodore 64's as a result of some unhealthy 30yo grudge from back in the day, or frown upon those that upgrade their devices using modern components. Lastly, it's one of the fairly rare examples with a mechanical keyboard, which feels lovely - Very similar to Cherry black switches. Here's some pics. Anyone with an A8, feel free to post your own, I'd love to see it: I just love drilling holes for mounting posts in rare retro motherboards... As you can see, the yellow PHI2 connection is stupidly close to the mounting post!