https://blog.lilithana.codes/posts/ Recent content in Posts on Lilith's Personal Devlog Hugo en ©Lilith Isenberg 2026 Sun, 22 Feb 2026 00:00:00 +0000 https://blog.lilithana.codes/posts/kitchens_are_cpus/ Sun, 22 Feb 2026 00:00:00 +0000 https://blog.lilithana.codes/posts/kitchens_are_cpus/ <p>No, really. They are. Allow me to elucidate.</p> <h2 id="the-cpu">The CPU</h2> <p><a href="https://en.wikipedia.org/wiki/Memory_hierarchy">Memory hierarchy</a> is the arrangement of the physical memory on a computer&rsquo;s motherboard.</p> <figure> <div style="color: #f8f8f2; display: inline-block; padding: 50px; border-radius: 8px; border: 2px solid #6272a4;"> <img src="ComputerMemoryHierarchy.svg" alt="Memory Hierarchy diagram showing the hiearchy of memory in a computer." style="display: block; max-width: 100%;"> </div> <figcaption style="text-align: center; padding: 10px 10px 20px">Is this an unjust hierarchy?</figcaption> </figure> <p>We are mostly concerned with the upper 3 levels on that pyramid: RAM, Processor Caches, and Processor Registers. The CPU itself contains a <a href="https://en.wikipedia.org/wiki/Control_unit">Control Unit</a> (CU), an Arithmetic Logic Unit (ALU), and those caches and registers. The CU orchestrates the flow of data into registers which the ALU operates on. The CU then directs that transformed data back into memory as needed. There&rsquo;s more to everything the CU does, but this is a sufficient high-level view for this post.</p>