zxsp simulates the black&white models ZX80 and ZX81, the Jupiter Ace, the ZX Spectrum models with 16K and 48K ram, the Spanish clone from Inves, the +128, +2, the +2A/+2B and the +3 including the Spanish and French localised versions, the Portuguese TC2048 and the TS2068-based machines TS2068 (USA), TC2068 (Portugal) and unipolbrit 2086 (Poland).