CDC 6600

CDC 6600 is a mainframe computer developed by Control Data Corporation (CDC) in the 1960s, with significant contributions from Seymour Cray, a renowned computer architect, and his team, including Jim Thornton and Les Davis. The CDC 6600 was designed to be the fastest computer in the world, surpassing the performance of the IBM System/360 and other contemporary systems, such as the UNIVAC 1108 and Burroughs D825. The system was first released in 1964 and was widely used by various organizations, including NASA, Los Alamos National Laboratory, and Lawrence Livermore National Laboratory, for complex scientific simulations and data processing tasks, often in conjunction with other systems like the CDC 6400 and IBM 7094.

Introduction

The CDC 6600 was a significant innovation in computer design, featuring a unique architecture that combined central processing unit (CPU) and input/output (I/O) operations, similar to the IBM System/370 and DEC PDP-8. The system was designed to support high-performance computing applications, such as weather forecasting, nuclear physics simulations, and cryptanalysis, which were also run on other systems like the CDC 7600 and UNIVAC 1107. The CDC 6600 was also used by various research institutions, including Massachusetts Institute of Technology (MIT), Stanford University, and University of California, Berkeley, for tasks like artificial intelligence research, computer graphics, and database management, often in collaboration with other organizations like Bell Labs and Xerox PARC.

Architecture

The CDC 6600 architecture was based on a parallel processing design, with multiple arithmetic logic units (ALUs) and a unique instruction set architecture (ISA) that supported vector processing, similar to the Cray-1 and IBM Vector Facility. The system featured a 64-bit word length and a clock speed of 100 MHz, which was relatively fast for its time, comparable to the IBM System/360 Model 91 and UNIVAC 1108. The CDC 6600 also included a magnetic core memory system with a capacity of up to 128 kilowords, which was a significant improvement over earlier systems like the CDC 1604 and IBM 701. The architecture was influenced by the work of John von Neumann, Alan Turing, and Konrad Zuse, and was also related to other systems like the ENIAC and EDVAC.

History

The development of the CDC 6600 began in the late 1950s, with a team led by Seymour Cray and William Norris, the founder of Control Data Corporation. The system was designed to be a high-performance computer that could compete with the IBM System/360, which was the dominant mainframe computer at the time, and other systems like the UNIVAC 1107 and Burroughs D825. The CDC 6600 was first released in 1964 and was widely adopted by various organizations, including NASA, Los Alamos National Laboratory, and Lawrence Livermore National Laboratory, for complex scientific simulations and data processing tasks, often in conjunction with other systems like the CDC 6400 and IBM 7094. The system was also used by various research institutions, including Massachusetts Institute of Technology (MIT), Stanford University, and University of California, Berkeley, for tasks like artificial intelligence research, computer graphics, and database management, often in collaboration with other organizations like Bell Labs and Xerox PARC.

Performance

The CDC 6600 was a high-performance computer that was capable of executing up to 3 million instructions per second, which was a significant improvement over earlier systems like the CDC 1604 and IBM 701. The system featured a unique instruction set architecture (ISA) that supported vector processing, which allowed it to perform complex scientific simulations and data processing tasks efficiently, similar to the Cray-1 and IBM Vector Facility. The CDC 6600 was also used for various applications, including weather forecasting, nuclear physics simulations, and cryptanalysis, which were also run on other systems like the CDC 7600 and UNIVAC 1107. The system's performance was influenced by the work of John von Neumann, Alan Turing, and Konrad Zuse, and was also related to other systems like the ENIAC and EDVAC.

Software

The CDC 6600 ran a variety of operating systems, including the CDC SCOPE operating system, which was designed to support high-performance computing applications, similar to the IBM System/360 and UNIVAC 1108. The system also supported various programming languages, including Fortran, COBOL, and Assembly language, which were also used on other systems like the CDC 6400 and IBM 7094. The CDC 6600 was used for various applications, including scientific simulations, data processing, and artificial intelligence research, which were also run on other systems like the CDC 7600 and UNIVAC 1107. The system's software was influenced by the work of Donald Knuth, Edsger W. Dijkstra, and Alan Kay, and was also related to other systems like the Xerox Alto and Apple II.

Impact

The CDC 6600 had a significant impact on the development of high-performance computing, influencing the design of later systems like the Cray-1 and IBM System/370. The system's unique architecture and instruction set architecture (ISA) supported vector processing, which became a standard feature in later high-performance computers, similar to the IBM Vector Facility and Cray X-MP. The CDC 6600 was also used for various groundbreaking applications, including weather forecasting, nuclear physics simulations, and cryptanalysis, which were also run on other systems like the CDC 7600 and UNIVAC 1107. The system's impact was felt across various fields, including science, engineering, and finance, and was influenced by the work of John von Neumann, Alan Turing, and Konrad Zuse, and was also related to other systems like the ENIAC and EDVAC. The CDC 6600 is now considered a historic computer system, with several examples preserved in museums like the Computer History Museum and Smithsonian Institution, alongside other notable systems like the Apple I and Altair 8800.

Category:Computer hardware