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The CDC 160 and CDC 160-A were 12-bit minicomputer
Minicomputer

A minicomputer is a class of multi-user computers that lies in the middle range of the computing spectrum, in between the largest multi-user systems and the smallest single-user systems ....
s built by Control Data Corporation
Control Data Corporation

Control Data Corporation was one of the pioneering supercomputer firms. For most of the 1960s, it built the fastest computers in the world by far, only losing that crown in the 1970s to what was effectively a spinoff, after Seymour Cray left the company to found Cray Research, Inc....
 from the late 1950s, through the mid-1960s. The 160 was designed by Seymour Cray
Seymour Cray

Seymour Roger Cray was a United States electrical engineer and supercomputer architect who designed a series of computers that were the fastest in the world for decades, and founded the company Cray Research which would build many of these machines....
 - reportedly over a long three-day weekend. It fit into the desk where its operator sat.

The 160 architecture was modified to become the basis of the peripheral processors (PPs) in the CDC 6000 series
CDC 6000 series

The CDC 6000 series was a family of mainframe computers manufactured by Control Data Corporation in the 1960s. It consisted of CDC 6400, CDC 6500, CDC 6600 and CDC 6700 computers, which all were extremely rapid and efficient for their time....
 mainframe
Mainframe computer

Mainframes are computers used mainly by large organizations for critical applications, typically bulk data processing such as census, industry and consumer statistics, Enterprise Resource Planning, and financial transaction processing....
 computers. Large parts of the 160 instruction set were unchanged in the peripheral processors.






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The CDC 160 and CDC 160-A were 12-bit minicomputer
Minicomputer

A minicomputer is a class of multi-user computers that lies in the middle range of the computing spectrum, in between the largest multi-user systems and the smallest single-user systems ....
s built by Control Data Corporation
Control Data Corporation

Control Data Corporation was one of the pioneering supercomputer firms. For most of the 1960s, it built the fastest computers in the world by far, only losing that crown in the 1970s to what was effectively a spinoff, after Seymour Cray left the company to found Cray Research, Inc....
 from the late 1950s, through the mid-1960s. The 160 was designed by Seymour Cray
Seymour Cray

Seymour Roger Cray was a United States electrical engineer and supercomputer architect who designed a series of computers that were the fastest in the world for decades, and founded the company Cray Research which would build many of these machines....
 - reportedly over a long three-day weekend. It fit into the desk where its operator sat.

The 160 architecture was modified to become the basis of the peripheral processors (PPs) in the CDC 6000 series
CDC 6000 series

The CDC 6000 series was a family of mainframe computers manufactured by Control Data Corporation in the 1960s. It consisted of CDC 6400, CDC 6500, CDC 6600 and CDC 6700 computers, which all were extremely rapid and efficient for their time....
 mainframe
Mainframe computer

Mainframes are computers used mainly by large organizations for critical applications, typically bulk data processing such as census, industry and consumer statistics, Enterprise Resource Planning, and financial transaction processing....
 computers. Large parts of the 160 instruction set were unchanged in the peripheral processors. However there were changes to incorporate the 6000 data channel programming, and control of the central processor. In the early days of the 6000s, almost the entire operating system
Operating system

An operating system is an interface between hardware and applications; it is responsible for the management and coordination of activities and the sharing of the limited resources of the computer....
 ran in the PPs. This left the central processor unemcumbered by operating system demands and available for user programs.

The 160 architecture used ones' complement arithmetic with end-around carry.

NCR joint marketed the 160-A under its own name for several years in the 1960s.

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