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772 results in Computer Hardware, Architecture and Distributed Computing

Page 4 of 39

  • 6 - The General Purpose Computer

  • Andrew A. Chien, University of Chicago
  • Book:
    Computer Architecture for Scientists
    Published online:
    25 March 2022
    Print publication:
    10 March 2022, pp 161-175

  • Summary

    What is computable? There is a practical answer to that question that is defined by the processors and associated memory hierarchies that we have discussed. This state-of-the-art varies over time with the progress of computer architecture and computing technology (as covered in Chapter 3). We refer to this level of computing performance as a general purpose computer. There is also a theoretical answer to that question, which we will address in Section 6.4.

  • 9 - Computing Performance: Past, Present, and Future

  • Andrew A. Chien, University of Chicago
  • Book:
    Computer Architecture for Scientists
    Published online:
    25 March 2022
    Print publication:
    10 March 2022, pp 226-238

  • Summary

    In this chapter we review the major dimensions of computer architecture covered, summarizing the high points and providing an overall perspective. Specifically, we highlight how each has shaped computers and computing. Computer architecture continues to advance, so we discuss its ongoing evolution, including the major technology and architecture trends. In many cases, the promise of computing is great, but as with parallelism and accelerators, increasingly its progress comes with compromises. We highlight the critical emerging constraints. Outlining these provides a strategic perspective on likely vectors of change that form a roadmap for the future.

  • 2 - Instructions Sets, Software, and Instruction Execution

  • Andrew A. Chien, University of Chicago
  • Book:
    Computer Architecture for Scientists
    Published online:
    25 March 2022
    Print publication:
    10 March 2022, pp 16-47

  • Summary

    Each computer can perform a set of instructions (basic operations) to move and transform data. To support software, which evolves at a different pace, instructions are a critical interface for compatibility. For the hardware, the instruction set is the specification that must be implemented correctly, and as fast and cheaply as possible. To illustrate these concepts and give a practical understanding, we describe the elements of an instruction set using an emerging open-source instruction set, the RISC-V. This concrete example illustrates how an instruction set supports basic software constructs, and the challenges of implementation.

Page 4 of 39