Keith Midson: Hewlett Packard & Swiss Micros 15C
Keith Midson: Private collection
Keith Midson: HP 15C 'Collectors Edition'
Keith Midson: The Evolution of Calculations
Keith Midson: HP-71B Pocket Computer VER$1AAAA
Keith Midson: Hewlett Packard 16C
Keith Midson: Lifecycle of a 15C
Keith Midson: Worn Hewlett Packard 15C
Keith Midson: HP Omnigo and Xpander
Keith Midson: HP's Hand Held Touch Screens
Keith Midson: HP 65 & 67 Clear Cased Prototypes
Keith Midson: HP 28S & Prime Graphing Calculators
Keith Midson: Hewlett Packard Prime
Keith Midson: Hewlett Packard 65
Keith Midson: Hewlett Packard programmables
Keith Midson: counting the time
Keith Midson: Hewlett Packard 18C prototype
Keith Midson: Hewlett Packard 20S variants
Keith Midson: Hewlett Packard 80 & 70
Keith Midson: Hewlett Packard HP35
Keith Midson: Hewlett Packard 27S & 27
Keith Midson: Hewlett Packard 71B with overlay
Keith Midson: Rare blue Hewlett Packard 12C
Keith Midson: Hewlett Packard 29C
Keith Midson: Hewlett Packard 20S
Keith Midson: Hewlett Packard 22S
Keith Midson: Hewlett Packard 38C
Keith Midson: Hewlett Packard 12C Platinum
Keith Midson: Hewlett Packard 48GX ASEE 100th Anniversary
Keith Midson: Hewlett Packard 12C Prestige