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
