Xerox Xrx-230 Calculator !!install!!

Xerox XRX-230 Calculator — Overview & Key Details

3. Functional Capabilities

The XRX-230 supports the following core arithmetic and memory functions:

• Basic Operations: Addition, subtraction, multiplication, division.
• Memory Functions: M+, M-, MR (memory recall), MC (memory clear). One independent memory register.
• Percent Key: Calculates percentages, surcharges, discounts.
• Square Root (√) : Single-key square root calculation.
• Sign Change (+/-) : Toggle between positive/negative numbers.
• GT (Grand Total) : Automatically accumulates results for running totals.
• Constants: Performs repeated multiplication/division (constant calculation mode).
• Automatic Power Off: Shuts down after ~5–8 minutes of inactivity.

Note: The XRX-230 does not include scientific (sin, cos, log), statistical, or financial (IRR, NPV) functions. It has no fractional display or hexadecimal capability. xerox xrx-230 calculator

5. Historical Context & Placement

• Time period: Likely introduced around 1977–1981.
• Price at launch: Approximately $19.95–$29.95 USD (budget tier).
• Competitors: Bowmar MX-80, Texas Instruments TI-1000 series, Sharp EL-240.
• Market position: Xerox was trying to brand non-copier electronics (calculators, word processors, early PCs) but was not dominant in calculators. The XRX-230 was likely included as a promotional item or sold in office supply catalogs.
• Manufacturer: Unknown – Possibly Bowmar Instrument Corporation (which made calculators for many brands) or a Japanese OEM like Busicom or General Instrument.

B. Build quality

• Entry-level – Plastic casing is thin but reasonably durable for its era.
• No fancy features like square root, sign change, or floating decimal (likely fixed decimal with a floating decimal option via a switch on the back or internal jumper – some units have a slide switch).

2. Technical Specifications

| Feature | Specification | | --- | --- | | Display Type | LCD (Liquid Crystal Display) | | Max Digits | 12-digit display capacity | | Power Source | Solar cell (primary) + 1x LR44 / AG13 battery (backup) | | Key Type | Hard plastic, color-coded (usually white/blue/black scheme) | | Dimensions | Approx. 4.5" x 6" x 1" (115 x 152 x 25 mm) | | Weight | ~4.5 oz (130 g) with battery | | Case Material | ABS plastic, standard desktop tilt design | Xerox XRX-230 Calculator — Overview & Key Details 3

Collectibility & Condition Notes

• Value depends on cosmetic condition, functionality, presence of original packaging/manual, and whether display and keys work.
• Common issues in vintage units: dim or dead LED displays (aging), sticky/oxidized key contacts, battery leakage corrosion.
• Repairable: cleaning switch contacts, replacing batteries, and careful restoration of display modules are common fixes.

4. Target User & Applications

| Sector | Use Case | | --- | --- | | Small Office/Retail | Invoicing, basic inventory math, tax calculation | | Home/Personal | Budgeting, household expense tracking, checkbook balancing | | Education | Elementary/middle school arithmetic practice (not for high school math) | | Warehouse/Stock | Unit counting, price extensions | Note : The XRX-230 does not include scientific

1. Overview

The Xerox XRX-230 is a basic, portable (or semi-portable) electronic calculator produced for Xerox Corporation, most likely by an OEM manufacturer (such as Sharp, Bowmar, or a Hong Kong-based firm). It was sold as an entry-level or mid-range business/personal calculator during Xerox’s diversification into electronics and office products beyond copiers and printers.