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Wang 500 or 520 Programmable Calculator
Wang 500-series Specifications
Manufacturer: Wang Laboratories Model Number: 500/520 Introduction: January, 1971 Manufactured In: Tewksbury, Massachusetts Original Price: $2700 (Base) Weight: 39 Pounds Size: 20" Wide, 20 1/2" Deep, 9" High Power Requirement: 45 Watts, 115 VAC Display Technology: Nixie Tube Logic Technology: Small and Medium-Scale Integration with MOS LSI Memory Digits of Capacity: 10 digits plus sign for mantissa, 2 digits plus sign for exponent Decimal Modes: Full Floating, w/Scientific Notation Memory Registers: 16 memory registers standard, optional up to 247 Early MOS Semiconductor Memory Programmable: Learn-Mode Labeled Branches, Conditional Branch on zero, non-zero, or negative Labeled Subroutines 2, 3, 4, 8 or 16K-bit MOS Memory for Program/Data Storage Peripherals: Optional built-in Magnetic Tape Cassette Drive (Option T) Optional built-in 21-column 160LPM drum printer (Option P)