I'm re-reading parts of the ZX81 BASIC Programming Manual (because of side-side-sidequest), which is the book that came with the ZX81. I had this when i was 10, and i'm time and time again gobsmacked by the amount of educational effort that went into this pack-in provided with the cheapest micro of all time. It's more or less how i learnt trigonometry, but i wanna talk about Chapter 15, which is about software engineering lifecycle management, or, as they put it, \"Making your programs work\".<\/p>
It comes with a flowchart (for humans): two absolutely key parts of this chart, still overlooked in many orgs: 1 \"Write program with as few bugs as possible\"; 2 \"fix them introducing as few new ones as possible\".<\/p>
_As few bugs as possible_<\/p>
#ZX81<\/a> #SoftwareEngineering<\/a><\/p>","generator":{"id":"tag:gnusocial.jp,2026-06-20:notice-source:ActivityPub","objectType":"application","status_net":{"source_code":"ActivityPub"}},"id":"https:\/\/typo.social\/users\/drj\/statuses\/115979607778774142","object":{"id":"https:\/\/typo.social\/users\/drj\/statuses\/115979607778774142","objectType":"note","content":" I'm re-reading parts of the ZX81 BASIC Programming Manual (because of side-side-sidequest), which is the book that came with the ZX81. I had this when i was 10, and i'm time and time again gobsmacked by the amount of educational effort that went into this pack-in provided with the cheapest micro of all time. It's more or less how i learnt trigonometry, but i wanna talk about Chapter 15, which is about software engineering lifecycle management, or, as they put it, \"Making your programs work\".<\/p> It comes with a flowchart (for humans): two absolutely key parts of this chart, still overlooked in many orgs: 1 \"Write program with as few bugs as possible\"; 2 \"fix them introducing as few new ones as possible\".<\/p> _As few bugs as possible_<\/p> #ZX81<\/a> #SoftwareEngineering<\/a><\/p>","url":"https:\/\/typo.social\/@drj\/115979607778774142","status_net":{"notice_id":null},"tags":[{"objectType":"http:\/\/activityschema.org\/object\/hashtag","displayName":"softwareengineering"}]},"to":[{"objectType":"http:\/\/activitystrea.ms\/schema\/1.0\/collection","id":"http:\/\/activityschema.org\/collection\/public"}],"status_net":{"conversation":"tag:gnusocial.jp,2026-01-30:objectType=thread:nonce=70273d9a29074fcb","notice_info":{"local_id":"12027875","source":"ActivityPub"}},"published":"2026-01-30T06:41:19+00:00","provider":{"objectType":"service","displayName":"GNU social JP","url":"https:\/\/gnusocial.jp\/"},"verb":"post","url":"https:\/\/typo.social\/@drj\/115979607778774142"}],"links":[{"url":"https:\/\/gnusocial.jp\/conversation\/6107389","rel":"alternate","type":"text\/html"}]}