Specifications for Texas Instruments SR-60/SR-60A
Manufacturer: Texas Instruments Model Number: SR-60A Serial Number: 0011273 Date of Manufacture: Early-1977 (Introduction early 1976, discontinued 1979) Manufactured In: USA Original Price: $1,695 (base SR-60) at introduction, later reduced to $995. $1,995 (base SR-60A, Spring '78) Weight: 16 Pounds Size: 17" Wide, 14 1/2" Deep, 5 1/2" High Power Requirement: 120 Volts AC Display Technology: 20 character 5x7 dot-matrix Alphanumeric Display Logic Technology: LSI Microprocessor, Single Board 16K bytes (Base SR-60) dynamic RAM Program/Memory Registers/Working Storage Digits of Capacity: 12 Significant Digits (10 displayed) Scientific Notation with 2-digit exponent (-99 to +99) Decimal Modes: Floating or Scientific Notation Arithmetic Logic: Full Algebraic with nine level parenthesis nesting Math Functions: Large variety of math & science functions Constant: Available on all four functions via [x->K] key Memories: 40 Memory Registers (base SR-60) expandable to 100 via $700 memory expansion module. Programmable: Yes, Learn-Mode with program editing features; Conditional and unconditional branching (via labels); 10 binary flag registers, indirect addressing; alphanumeric prompting/printing capability; user-definable function keys. Volatile RAM Program/Storage Register Memory with 480 step program storage (base SR-60), expandable to 1920 steps with $700 memory expansion module Peripherals: Built-in 20-column 5x7 dot-matrix thermal printer Built-in magnetic card reader/writer for offline program/data storage. Credits: Sincere thanks to Michael Cochran(5/21/1941-12/2/2018) for donation of his personal SR-60A Serial# 0011273
Patents: US Patent Number 4,107,782 [Prompting Programmable Calculator]
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