This listing is for one Fairchild IC manufactured for NCR in 1974HISTORICAL PROVENANCE: THE 1449-1104 LOGIC CHIPThe Fairchild Connection
The branding on this chip marks it as a product of Fairchild Semiconductor, the legendary firm founded by the "Traitorous Eight." Fairchild was the first company to successfully commercialize the integrated circuit. In 1974, they were the "foundry of choice" for NCR, translating NCR’s proprietary mainframe architecture into physical silicon.
The Rare White Ceramic Variant
While most industrial chips of the 1970s utilized dark purple or grey alumina ceramic, these specific units feature a rare White Ceramic body. During this era, white ceramic was frequently reserved for high-reliability, high-thermal-stability contracts. The stark contrast between the white ceramic and the gold hermetic seal makes this variant highly prized by "Silicon Art" collectors for its unique aesthetic appeal.
Technical Function: The Instruction Decoder
Within the NCR Century 200 Mainframe, the 1449-1104 served as a critical Instruction Decoder. It functioned as the "translator" between the machine's software commands and its physical hardware operations. It was responsible for decoding the "Command Repertoire" that allowed the system to perform high-speed financial calculations and multi-programming tasks.
Rarity & Preservation
Because the majority of NCR Century mainframes were decommissioned and chemically stripped for gold recovery in the 1980s, surviving New Old Stock (NOS) specimens are exceedingly rare. These chips were never available to the public; they were proprietary components for million-dollar machines, making them some of the most exclusive artifacts of the early Digital Age.
Technical Specifications: NCR 1449-1104Feature| SpecificationPrimary System:| NCR Century 200 / 251 MainframeManufacturer:| Fairchild Semiconductor (Custom Fabricated for NCR)Package Type:| 16-pin Gold-Capped Ceramic DIP (Dual In-line Package)Logic Family:| DTL/TTL Monolithic Integrated CircuitFunction:| Instruction Decoder / Command TranslatorDate Codes:| 7348 & 7448 (Late 1973 to Late 1974)Condition:| Unknown. Appears to have never been soldered.
1. Technical Identity
The Manufacturer: These were fabricated by Fairchild Semiconductor (under contract for NCR) at a time when Fairchild was the undisputed leader in integrated circuit technology.
The Design: This is a Proprietary Logic Chip. It is not a general-purpose part like an Intel 8080; it was designed exclusively to execute the "Instruction Repertoire" of the NCR Century series.
Date Codes:The IC chips (marked 7448) were produced in the final weeks of1974.
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