This "Special 10th Anniversary Issue 1995" of the Digital Technical Journal celebrates Digital's significant engineering achievements, particularly focusing on the advancements in the Alpha 64-bit RISC architecture and distributed computing.
The document is structured around three main themes:
- Database Integration: Articles discuss Digital's DB Integrator, an open middleware solution for accessing and integrating data from heterogeneous sources, emphasizing features like query optimization, location transparency, global consistency, and security. It also details the ACMSxp Open Distributed Transaction Processing monitor, which supports open transaction processing standards for robust, distributed client-server applications. A three-tier client-server architecture is presented, integrating ObjectBroker and ACMSxp, to enhance legacy system effectiveness.
- Alpha Servers & Workstations: Papers introduce Digital's high-end server products, the AlphaServer 8000 series (8400/8200), and the second-generation KN470 processor module for AlphaServer 2100 systems. These platforms are built around the 300-MHz Alpha 21164 microprocessor, with a focus on achieving high system data bandwidth and extremely low memory read latency through innovative architectural and circuit designs. The AlphaStation 600 5-series workstation, also utilizing the Alpha 21164 and PCI bus, is highlighted for its design and verification methodologies.
- Alpha 21164 CPU: In-depth papers dissect the 300-MHz 64-bit quad-issue CMOS RISC microprocessor (Alpha 21164), covering its complex circuit implementation, internal organization (including multiple pipelines for integer, floating-point, and memory operations, as well as integrated cache control), and the rigorous functional verification process that employed pseudorandom testing and targeted hand-generated tests.
The issue highlights Digital's commitment to open standards, distributed client-server models, and delivering industry-leading, high-performance computing solutions that achieve supercomputer-level capabilities in various benchmarks.