Mainframe computer
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A mainframe computer, informally called a mainframe, maxicomputer, or big iron, is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such a
A single-frame IBM z15 mainframe. Larger capacity models can have up to four total frames. This model has blue accents, as compared with the LinuxONE III model with orange highlights.
A pair of IBM mainframes. On the left is the IBM z Systems z13. On the right is the IBM LinuxONE Rockhopper.
An IBM System z9 mainframe
Inside an IBM System z9 mainframe that has an IBM ThinkPad integrated into the system as a Hardware Management Console (HMC). The HMC is used by the operator to control, e.g., the hardware, the PR/SM configuration. A secondary function is to serve as a low performance operator console via a proprietary interface. The HMC is not supported as a terminal, and remote access to it is limited to HTTP. Two other ThinkPads serve as Support Elements and backup HMCs
Amdahl Corporation
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Amdahl Corporation was an information technology company which specialized in IBM mainframe-compatible computer products, some of which were regarded as supercomputers competing with those from Cray R
Amdahl 470V/6 at the University of Michigan
Front panel of an Amdahl 4705 communications controller
Amdahl 580: 11-by-11 Multi-Chip Carrier board
Amdahl 5860: close-up of an Air Cooled Logic Processor with its heat sink