---
id: kb-2026-00406
title: Computer History
schema_type: TechArticle
category: history
language: en
confidence: high
last_verified: "2026-05-24"
created_date: "2026-05-22"
generation_method: ai_structured
ai_models:
  - claude-opus
derived_from_human_seed: true
conflict_of_interest: none_declared
is_live_document: false
data_period: static
atomic_facts:
  - id: fact-history-001
    statement: >-
      Computing history: Ada Lovelace (first algorithm, 1843) → Turing (theoretical foundation, 1936) → ENIAC (first electronic general-purpose computer, 1945) → transistors (1947) → integrated
      circuits (1958) → microprocessors (Intel 4004, 1971) → personal computers (Altair 1975, Apple II 1977, IBM PC 1981) → Internet → smartphones.
    source_title: "The Computer: A Very Short Introduction (2025)"
    source_url: https://global.oup.com/vsi-computer/
    confidence: low
  - id: fact-history-002
    statement: "Turing (1936): Turing Machine theoretical model, Bombe broke Enigma in WWII."
    source_title: The Innovators (Walter Isaacson)
    source_url: https://www.simonandschuster.com/books/The-Innovators/Walter-Isaacson/9781476708706
    confidence: low
  - id: fact-history-003
    statement: "Von Neumann architecture: stored-program concept (1945), basis of all modern computers."
    source_title: The Innovators (Walter Isaacson)
    source_url: https://www.simonandschuster.com/books/The-Innovators/Walter-Isaacson/9781476708706
    confidence: low
  - id: fact-history-004
    statement: "Moore's Law (Gordon Moore, 1965): transistors per chip double ~2 years — held for 50 years."
    source_title: The Innovators (Walter Isaacson)
    source_url: https://www.simonandschuster.com/books/The-Innovators/Walter-Isaacson/9781476708706
    confidence: low
  - id: fact-history-005
    statement: "GUI: Xerox PARC (1973) → Apple Macintosh (1984) → Windows (1985)."
    source_title: The Innovators (Walter Isaacson)
    source_url: https://www.simonandschuster.com/books/The-Innovators/Walter-Isaacson/9781476708706
    confidence: low
completeness: 0.88
known_gaps:
  - Certain sub-topics are covered at a general level; specialized edge cases and nuanced applications may not be fully addressed
disputed_statements: []
primary_sources:
  - title: "The Computer: A Very Short Introduction (2025)"
    type: book
    year: 2025
    authors:
      - multiple
    institution: Oxford University Press
    url: https://global.oup.com/vsi-computer/
secondary_sources:
  - title: The Innovators (Walter Isaacson)
    type: book
    year: 2014
    url: https://www.simonandschuster.com/books/The-Innovators/Walter-Isaacson/9781476708706
    institution: Simon & Schuster
---
## TL;DR

Computing history: Ada Lovelace (first algorithm, 1843) → Turing (theoretical foundation, 1936) → ENIAC (first electronic general-purpose computer, 1945) → transistors (1947) → integrated circuits (1958) → microprocessors (Intel 4004, 1971) → personal computers (Altair 1975, Apple II 1977, IBM PC 1981) → Internet → smartphones.

## Core Explanation

Turing (1936): Turing Machine theoretical model, Bombe broke Enigma in WWII. Von Neumann architecture: stored-program concept (1945), basis of all modern computers. Moore's Law (Gordon Moore, 1965): transistors per chip double ~2 years — held for 50 years. GUI: Xerox PARC (1973) → Apple Macintosh (1984) → Windows (1985). Internet: ARPANET (1969) → WWW (Berners-Lee, 1989) → broadband → mobile. Steve Jobs + Steve Wozniak: Apple in a garage (1976).

## Further Reading

- [The Innovators (Walter Isaacson)](https://www.simonandschuster.com/books/The-Innovators/Walter-Isaacson/9781476708706)

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