Conceptual, architectural explainers — how a subsystem actually works underneath.
How source refresh rates, audio clocks, host displays, queues, and synchronization strategies create smooth motion—or periodic stutter and latency.
A practical guide to verifying cartridge and disc dumps, understanding No-Intro and Redump, and choosing formats without silently discarding tracks, sectors, metadata, or protection data.
Why classic systems sound different: channels, oscillators, envelopes, filters, sample memory, bus timing, and the limits composers turned into instruments.
How tile maps, pattern tables, palettes, sprites, scanlines, and hardware limits produced classic 2D graphics—and what an emulator must reproduce.
$(command) captures text, while <(command) exposes a stream through a path-like argument. Their data flow, buffering, portability, and failure behavior are fundamentally different.
Shell variables and process environments overlap, but they are not the same. Export, fork/exec inheritance, subshells, pipelines, and sourcing define where changes survive.
Interactive Bash editing is a library-driven state machine: keymaps, editing modes, completion hooks, history, and terminal escape sequences all meet inside GNU Readline.
Reliable shell cleanup requires understanding signals, traps, process groups, and the important difference between a normal exit and an uncatchable termination.
A terminal multiplexer is more than several shells in one window. PTYs, a persistent server, and reattachment explain why tmux and screen survive a dropped SSH connection.
The October 29, 1969 UCLA-to-SRI login attempt, the Interface Message Processors, and what the famous two letters do—and do not—prove.