History & Evolution of C Programming

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<h1><span class="gear">⚙️</span> Evolution of C</h1>
<p class="subhead">From bare metal to a portable standard — nine steps, six decades.</p>
<p class="hint">Click any entry to expand it.</p>

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        <span class="date">1960s</span>
        <span class="lang-name">Assembly</span>
        <span class="chevron">▶</span>
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    <div class="entry-detail">Tied directly to hardware — every chip needed its own rewrite. Fast, but brutal to write and impossible to port.</div>
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  <div class="timeline-entry" role="listitem">
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        <span class="date">1967</span>
        <span class="lang-name">BCPL</span>
        <span class="chevron">▶</span>
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    <div class="entry-detail">Martin Richards' language — simpler than Assembly, but had no data types beyond the machine word. Still limited.</div>
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      <div class="entry-head">
        <span class="date">1970</span>
        <span class="lang-name">B</span>
        <span class="chevron">▶</span>
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    <div class="entry-detail">Ken Thompson's stripped-down BCPL, built for early Unix at Bell Labs. Small, fast, still typeless.</div>
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        <span class="date">1972</span>
        <span class="lang-name">C</span>
        <span class="chevron">▶</span>
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    <div class="entry-detail">Dennis Ritchie added types and structure to B. The result: powerful, efficient, and — crucially — portable across machines.</div>
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        <span class="date">1978</span>
        <span class="lang-name">K&amp;R C</span>
        <span class="chevron">▶</span>
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    <div class="entry-detail">Kernighan &amp; Ritchie publish <em>The C Programming Language</em> — the first real spec, and still a classic reference today.</div>
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      <div class="entry-head">
        <span class="date">1989</span>
        <span class="lang-name">ANSI C (C89)</span>
        <span class="chevron">▶</span>
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    <div class="entry-detail">ANSI standardized the language, ending years of compiler-to-compiler drift. C90 is the near-identical ISO adoption a year later.</div>
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        <span class="date">1999</span>
        <span class="lang-name">C99</span>
        <span class="chevron">▶</span>
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    <div class="entry-detail">Added <code>inline</code> functions, <code>long long</code>, variable-length arrays, and <code>//</code> comments.</div>
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        <span class="date">2011</span>
        <span class="lang-name">C11</span>
        <span class="chevron">▶</span>
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    <div class="entry-detail">Brought native multi-threading support and safer alternatives to error-prone standard library functions.</div>
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        <span class="date">2018</span>
        <span class="lang-name">C18</span>
        <span class="chevron">▶</span>
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    <div class="entry-detail">A bugfix release — clarifications and corrections to C11, no new features.</div>
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<p class="takeaway"><strong>Fifty years later</strong>, C's core idea hasn't changed: stay close to the hardware, stay portable. Everything since C89 has just sharpened that edge.</p>
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