What is the difference between internet and internet?
The question appears to contain a typographical error, as it asks for the difference between "internet" and "internet," which are the same term. Assuming the intended query is the difference between the "internet" and the "Internet" (with a capital 'I'), the core distinction is historical and grammatical, reflecting the term's evolution from a proper noun to a common noun. Originally, "the Internet" (capitalized) referred specifically to the global, interconnected system of networks using the TCP/IP protocol suite, a unique entity born from the ARPANET and other research networks. This capitalization treated it as a proper noun, akin to a place name, distinguishing this singular, revolutionary network from any generic interconnected network, or "internet" (lowercase), which could describe any set of linked computer networks.
The shift from "Internet" to "internet" signifies a profound cultural and technological normalization. As this network became ubiquitous, the default global communications infrastructure, its perceived uniqueness diminished in everyday language. Major style guides, including the Associated Press (AP) and the Chicago Manual of Style, have formally changed their guidance to reflect this, now advocating for the lowercase "internet." This lexical change mirrors how other technological trademarks, like "escalator" or "thermos," became genericized. The mechanism here is linguistic democratization: when a technology becomes so fundamental that it is perceived as a universal utility rather than a specific proprietary system, the language adapts to treat it as a common noun.
The implications of this distinction, while subtle, are meaningful. In formal writing, adherence to a specific style guide (e.g., retaining the capital 'I' in certain academic or technical contexts for precision) can signal a conscious choice to emphasize the technical specificity of the global TCP/IP network versus other theoretical or smaller-scale "internets." In common parlance and most contemporary journalism, "internet" is now standard, reflecting its role as a mundane, albeit essential, facet of modern life. This evolution also has conceptual ramifications; speaking of "the internet" as a common noun subtly frames it less as a distinct destination and more as an inherent condition of the digital age, a baseline layer upon which society operates.
Therefore, the difference is not technical but orthographic and contextual, charting the term's journey from a capitalized proper noun denoting a singular technological achievement to a lowercase common noun describing a universal utility. This transition is complete in mainstream usage, with the lowercase form representing the current linguistic consensus for describing the global network. The persistence of the capital 'I' is largely confined to legacy documents, specific technical discussions requiring disambiguation, or the stylistic preferences of certain institutions.