Karchworld Identity

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  • Blog Post: A Letter to My Clients: How Computers Work

    Dear Mr. Client O'Mine: Per your request to give you a high-level explanation of how computers work, above is a diagram, along with a walk through that will hopefully dispel the mystery. Let us start with the central processing unit (CPU). It is the core of any computer, and technically speaking...
  • Blog Post: CPU Parallelism: Techinques of Processor Optimization

    There are two forms of parallelism that serve to improve the performance of processors: the first is Instructional Level Parallelism (ILP). ILP consist of applying the techniques of superscalar processing and pipelining to overlap as the execution of as many instructions as possible (DeMone, 2000). Superscalar...
  • Blog Post: More on Cores: Single Core? Dual Core? Quad Core? What's the Difference?

    The core of a processor refers its components, along with system memory, that facilitate the fetch-execute cycle by which computers read (fetch) and process (execute) the instructions of programs. Although the physical implementation of a chip depends upon its architecture, all CPUs consist of two logical...
  • Blog Post: CPU Core Symmetry: Asymmetrical versus Symmetrical

    The symmetry of a multi-core processor refers to whether the cores are of a homogenous or heterogeneous design. A processor with asymmetrical cores is one in which the design of the cores is heterogeneous. Typically this means that, in relation to one another, each of the cores can be designed to operate...
  • Blog Post: Computer Memory: A Brief Survey of Technologies

    Below is a (very) brief cheat-sheet of descriptions of the most commonly used memory technology and specifications today: Dual In-line Memory Modules (DIMM) -- A Dual In-line Memory Module (DIMM) is actually not a type of memory; but rather, simply a number of memory components placed onto a circuit...
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