The IBM 308X is a line of mainframe computers, of which the first model, the Model 3081 Processor Complex, was introduced November 12, 1980. [1] NB 1 ] It consisted of a 3081 Processor Unit with supporting units.

The IBM 3081 was the first IBM mainframe implemented in LSI technology and the cycle time was 26 nanoseconds. Full details of the design are given in IBM 3081 Processor Unit: Design Considerations and Design Process .

The IBM 3081 Processor Complex consists of a 3081 Processor Unit and supporting units for processor control, power, and cooling. The Processor Unit, completely implemented in LSI technology, has a dyadic organization of two central processors, each with ...

The IBM 3081 Processor Complex is a cost-effective growth solution for users who require the power and performance of a large data processing system. Three versions of the 3081, Model Groups D, G and K, offer excellent processing power …

This paper presents an overview of the advances in technology and in the design process, as well as enhancements in the system design that were associated with the development of the IBM 3081.

The IBM Model 3081 Processor Complex was a mainframe computer which was announced November 12, 1980 and withdrawn August 4, 1987. It introduced the System/370 Extended Architecture. (IBM c. 1982) It consisted of a 3081 Processor Unit and supporting units; the 3083 and 3084 were in the same family.

ibm 3081 processor complex models k16, k24, k32. new system/370 extended architecture (370-xa) added to 3081.

The attractive price and DTI backing for this venture by ICL into the IBM-compatible market, meant that a proposal to purchase an IBM 3081 front-ending an ICL Atlas 10 was accepted. Replacing the 360/195s by the new system was done in …

In this paper, the design aspects and the characteristics of the 3081 Processor Unit are described and the tradeoffs that were made due to the implementation of LSI are presented.

The development of the IBM 3081 established the methodology for designinc and manufacturing a high-performance computer from an LSI chip technology. The high density packaging of the LSI chip is used to minimize interconnections and to support a fast machine cycle time.