intermediateNovember 2, 2026 · 39 min read
Cache: lines, associativity and what happens on a miss
How a cache finds data by tag, index and offset, what happens on a miss, and how associativity and replacement change the hit rate.
Posts tagged #Hardware
3 posts
intermediateNovember 2, 2026 · 41 min read
SRAM, DRAM and storage: how each technology stores a bit
How SRAM, DRAM, flash and disk store a bit inside, why SRAM is fast and expensive, why DRAM is slow and cheap, and what keeps data after power loss.
intermediateNovember 1, 2026 · 34 min read
ALU and registers: adding, comparing and holding operands
How the ALU adds, subtracts, compares and does logic, what the Z, N, C and V flags mean, and what registers are for inside the CPU.