1. Tandy 1k with DOS
2. Split between a custom Ryzen 7 3k based system and a Lenovo Thinkpad W530
3. My custom gaming PC - AMD Ryzen 7 5700X, 48GB RAM, Asus ROG Strix B450 Gaming motherboard, Sapphire Radeon Pulse RX 6700XT
4. Dual Socket AMD Threadripper 64core, 1TB RAM, Nvidia Geforce RTX 5090 x2