Operating systems, infrastructure, emulation, and technical history.
A rigorous guide to shell here-document parsing, quoted delimiters, expansion, tab stripping, indentation, remote commands, and safer data handling.
A bounded shell concurrency pattern covering background PIDs, wait status, failure aggregation, cleanup, signal forwarding, logs, and POSIX versus Bash features.
A threat-aware shell temporary-file pattern covering private directories, mktemp portability, permissions, traps, atomic replacement, signals, and cleanup.
A byte-accurate comparison of POSIX printf and echo covering option ambiguity, backslashes, format-string safety, arbitrary values, locales, and NUL limits.
A systems-level guide to POSIX terminal input processing, canonical and noncanonical reads, echo, signals, control characters, job control, and restoration.
A patent- and process-aware history of Jack Kilby's 1958 demonstration, Robert Noyce's planar interconnection concept, and integrated-circuit manufacturing.
The documented story of Busicom's calculator request, Intel's MCS-4 architecture, Faggin's silicon implementation, the 4004 launch, and its limits.
A retrospective news analysis of Java 1.0's January 1996 release, applets and HotJava, bytecode portability, security limits, APIs, and lasting impact.
A careful chronology of public-key ideas at GCHQ, Diffie and Hellman's 1976 publication, Merkle's contribution, RSA, signatures, and attribution.
What the 1988 Patterson-Gibson-Katz RAID paper actually proposed, how its levels organized tradeoffs, which ideas predated it, and why naming mattered.