Microprocessor
Course - NPTEL - IIT-Guwahati, by Dr. John Jose
Multilevel Machine Architecture

Data Path

Data Path Timing

Microinstructions

Two types of CPU architecture
- RISC Architecture
- CISC Architecture
RISC & CISC Comparison

ARM - Advanced RISC Machine
IBM MainFrame
A mainframe is a large computer that runs critical business applications requiring a significant amount of processing power. Banks and other large organizations often require this computing power for data processing, transactions, and enterprise apps, exceeding the demands of a server. Organizations migrate their legacy on-premises mainframes to modern cloud infrastructure to increase usability, scalability, and reduce operational costs.
IBM mainframe prices vary widely based on configuration, ranging from roughly $100,000 for entry-level models to over $4 million for enterprise-level systems. Costs are highly customized and negotiated, often exceeding millions when factoring in processors, storage, and specialized software, with significant discounts common.
References
https://www.edgefxkits.com/blog/what-is-risc-and-cisc-architecture