AKA (Label): MODEL 1830, Product number (P/N): 1830,
Keywords/Tags: 1830
Date of intro: ~1974, Origin: USA (List), Dimensions: 381x368x178mm,
Power: AC,
Display: Type = Display (None) (List), Digits = 14,
Classification: / Desktop with Printer,
Featuring: Programmable, Memories: 74, Programmable Steps: 512,
Related with: MONROE_docu: (Instr.) 1830: Programming Reference; MONROE_docu: (Instr.) *: 1810, 1830; MONROE_docu: (Instr.) 1830: Operating Instructions; MONROE_docu: (Art.) 1830; MONROE_parts: 1830-11 (Memory Basic calculator); MONROE_parts: 1830-13 (Memory expansion); MONROE_parts: 1830-42 (Memory expansion); MONROE_parts: 1830-67 (Memory expansion); MONROE_parts: 1830-88 (Memory expansion); MONROE_perips: 392 (Tape Cassette Drive),
Original Equipment Manufacturer : COMPUCORP: 485, Made by: COMPUCORP (List of all Import-OEM-models for MONROE),
Serie-members: MONROE: 1810 (Relies on pre-made magnetic cards); MONROE: 1830 (Full keyboard programming),
Known Serial-numbers: G850151 (List of all S/Ns from MONROE)
Info: The Model 1830 is a versatile, programmable printing calculator designed to bridge the gap between simple arithmetic and complex problem-solving.


Easy Programming: Program directly via the keyboard without needing to learn complex machine languages. Simply input calculations as you would write them.
Flexible Storage: Save programs in the internal memory or on magnetic cards using the built-in reader.
Pre-set Functions:
Access permanent business and financial procedures (such as compound interest, annuities, and coupon periods) using standard program codes.
Customization: Use the dedicated "user-definable" keys to assign specific functions or custom programs for quick access.
These keys feature interchangeable labels for easy identification.
Error Management:
Built-in safeguards detect illegal operations, such as division by zero, triggering an error or overflow indicator.


Model 1810: Designed for program execution only. It cannot be programmed via the keyboard and reads programs from magnetic cards previously prepared on a Model 1830.


Model 1830: Features full keyboard programming capability. It can create programs for use on both its own system and the Model 1810.


Both models are available with expandable data storage and program capacity.
These upgrades are internal and can be added to the calculator at any time.
Standard ConfigurationThe basic unit includes 64 Main Data Registers and 512 Program Steps.


The Model 1810 features 17 'Program Address Keys' used to access specific memory locations:
12 Keys: Provide direct access to user-written programs.
4 Keys: Dedicated to algebraic functions.
1 Key: A special function key used in combination with the numeral entry keys.
In addition to the main data registers, both models include 10 scratchpad registers for
short-term problems and intermediate calculations.