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Specifications for Commodore US*8 Version 1

Manufacturer: Commodore Business Machines
Model Number: US*8 (Version 1)
Serial Number: L-75973 CODE 121
Date of Manufacture: Early-1972
Manufactured In: Japan (Mfg. Unknown)
Original Price: Unknown
Weight: 3 Pounds
Size:
Power Requirement: 120VAC 50/60Hz
Display Technology: Multiplexed Individual Eight-Segment Vacuum-Fluorescent Display Tubes
Eight Digit Positions, Right-hand Decimal
Right-end of Display Panel has Two Incandescent Lamps for Overflow (108) and Negative Indication (-)
Logic Technology: MOS/LSI, Three Chip Omron ALPHA chip-set
Chips Labeled OMRON, but were designed and manufactured by Nortec Electronics (NE) exclusively for Omron
Digits of Capacity: 8
Decimal Modes: Automatic Floating Decimal Point
Arithmetic Logic: Arithmetic for addition/subtraction
Algebraic for multiplication/division
Math Functions: Four Function
Constant: No
Memories: No
Notes: Commodore was an OEM customer of OMRON

Specifications for Commodore US*8 Version 2

Manufacturer: Commodore Business Machines
Model Number: US*8 (Version 2)
Serial Number:
Date of Manufacture: Mid-1972 (By Date Codes)
Manufactured In: Mexico
Original Price: Unknown
Weight: 3 Pounds
Size: N/A
Power Requirement: 120VAC 50/60Hz
Display Technology: Multiplexed Burroughs Panaplex Planar Gas-Discharge Display Panel
Nine Digit Positions w/Right Hand Decimal
Six comma indicators in left-most digit positions (Not Used)
Logic Technology: MOS/LSI, Single-Chip Texas Instruments TMS0103
Digits of Capacity: 8
Decimal Modes: Slide Switch Selectable, Fixed at 2, 3, or 4, or Floating
Arithmetic Logic: Arithmetic for addition/subtraction
Algebraic for multiplication/division
Math Functions: Four Function
Constant: Yes, Push-on/Push-off Keyboard Switch [K]
Multiplication and Division Only
Memories: No

Previous Machine: Wang Laboratories 462
Next Machine: Commodore US*10

Related Machines: Commodore US*10
Commodore US*3
Commodore US*14
Commodore US*1
Commodore US*1M

Patent Information: 4,074,351 Variable Function Programmed Calculator
Concepts Behind the Texas Instruments TMS010x-Series of Single Chip Microprogrammed Calculator ICs

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