Category: General: Domestic
Machine: ZX81 16K
Date: 1983/Dec
Original Publisher: Magazine Sinclair User - type-in from issue #21 - 1983/Dec
Category: Utility: Maths/Science
Machine: ZX-Spectrum 48K
Date: 1984/Aug
Original Publisher: Magazine ZX Computing - type-in from issue #14 - 1984/Aug