The defining moments in computing and video game history — verified, dated, and sourced.https://danielcosenza.com/en-usFri, 17 Jul 2026 00:00:00 GMThttps://danielcosenza.com/posts/th-arpanet-first-message/https://danielcosenza.com/posts/th-arpanet-first-message/Reconstruct the October 29, 1969 UCLA-to-SRI login from the IMP log, and separate ARPANET's first host message from later Internet myths.Sun, 12 Jul 2026 00:00:00 GMTTech Historyarpanetnetworkinginternet-historyhttps://danielcosenza.com/posts/th-c-standardization/https://danielcosenza.com/posts/th-c-standardization/Follow C from Bell Labs and K&R practice through ANSI X3J11, ISO C and C23, including what portability guarantees—and deliberately leaves open.Sun, 12 Jul 2026 00:00:00 GMTTech Historycansistandardshttps://danielcosenza.com/posts/th-dns-hosts-txt/https://danielcosenza.com/posts/th-dns-hosts-txt/Trace the NIC host table's scaling failure, Mockapetris's delegated DNS design, the staged 1983–85 migration, caching tradeoffs and later DNSSEC.Sun, 12 Jul 2026 00:00:00 GMTTech Historydnshostsinternethttps://danielcosenza.com/posts/th-ethernet-history/https://danielcosenza.com/posts/th-ethernet-history/How Ethernet moved from a 2.94-megabit coax experiment to switched full-duplex links without depending on collisions forever.Sun, 12 Jul 2026 00:00:00 GMTTech Historyethernetnetworkingieeehttps://danielcosenza.com/posts/th-free-software-open-source/https://danielcosenza.com/posts/th-free-software-open-source/How GNU's freedom-centered movement and the 1998 open-source campaign came to share much software while making different arguments.Sun, 12 Jul 2026 00:00:00 GMTTech Historyfree-softwareopen-sourcelicensinghttps://danielcosenza.com/posts/th-iphone-sdk-app-store/https://danielcosenza.com/posts/th-iphone-sdk-app-store/How Apple's 2008 SDK and App Store paired native mobile software with code signing, review, global distribution, and platform control.Sun, 12 Jul 2026 00:00:00 GMTTech Historyiphoneapp-storemobilehttps://danielcosenza.com/posts/th-microsoft-github-acquisition/https://danielcosenza.com/posts/th-microsoft-github-acquisition/How Microsoft's $7.5 billion all-stock GitHub acquisition joined developer infrastructure to its cloud strategy—and why trust mattered.Sun, 12 Jul 2026 00:00:00 GMTTech Historygithubmicrosoftacquisitionhttps://danielcosenza.com/posts/th-netscape-company/https://danielcosenza.com/posts/th-netscape-company/How Netscape commercialized the browser, lost distribution to Microsoft, opened its code, joined AOL, and left Mozilla behind.Sun, 12 Jul 2026 00:00:00 GMTTech Historynetscapemozillaaolhttps://danielcosenza.com/posts/th-news-gnu-manifesto/https://danielcosenza.com/posts/th-news-gnu-manifesto/How Richard Stallman's 1985 manifesto turned the GNU operating-system plan into an ethical, technical, and economic argument for user freedom.Sun, 12 Jul 2026 00:00:00 GMTTech Historygnufree-softwaremanifestohttps://danielcosenza.com/posts/th-news-microsoft-antitrust-settlement/https://danielcosenza.com/posts/th-news-microsoft-antitrust-settlement/The Microsoft antitrust case preserved monopoly-maintenance liability but replaced a breakup order with conduct rules, disclosures, and oversight.Sun, 12 Jul 2026 00:00:00 GMTTech Historymicrosoftantitrustbrowserhttps://danielcosenza.com/posts/th-news-sun-oracle-acquisition/https://danielcosenza.com/posts/th-news-sun-oracle-acquisition/The January 2010 transaction that put Java, Solaris, MySQL, and major server assets under Oracle—and reshaped their communities.Sun, 12 Jul 2026 00:00:00 GMTTech Historysunoracleacquisitionhttps://danielcosenza.com/posts/th-news-web-public-domain/https://danielcosenza.com/posts/th-news-web-public-domain/The April 30, 1993 statement signed by CERN's directors that put the core Web software in the public domain — and what it changed at a decisive moment.Sun, 12 Jul 2026 00:00:00 GMTTech Historycernwebpublic-domainhttps://danielcosenza.com/posts/th-open-source-term-1998/https://danielcosenza.com/posts/th-open-source-term-1998/How a strategy meeting, Netscape's source release, and the Debian Free Software Guidelines produced a new advocacy label.Sun, 12 Jul 2026 00:00:00 GMTTech Historyopen-sourceosinetscapehttps://danielcosenza.com/posts/th-pentium-fdiv/https://danielcosenza.com/posts/th-pentium-fdiv/How five missing table entries produced rare Pentium division errors, a $475 million charge, and a lasting lesson in technical trust.Sun, 12 Jul 2026 00:00:00 GMTTech Historypentiumfdivhardware-bughttps://danielcosenza.com/posts/th-sco-v-ibm/https://danielcosenza.com/posts/th-sco-v-ibm/How SCO's Unix contract suit became a threat to Linux, fractured over evidence and copyright ownership, and ended in a 2021 settlement.Sun, 12 Jul 2026 00:00:00 GMTTech Historyscoibmlinuxhttps://danielcosenza.com/posts/th-unix-wars/https://danielcosenza.com/posts/th-unix-wars/How commercial Unix fractured across codebases and alliances while POSIX and the Single UNIX Specification preserved portable interfaces.Sun, 12 Jul 2026 00:00:00 GMTTech Historyunixposixstandardshttps://danielcosenza.com/posts/th-usb-1-0/https://danielcosenza.com/posts/th-usb-1-0/How USB combined one host-controlled bus, device discovery, shared connectors, power, and classes—and why adoption still took years.Sun, 12 Jul 2026 00:00:00 GMTTech Historyusbperipheralsstandardshttps://danielcosenza.com/posts/th-usenet-history/https://danielcosenza.com/posts/th-usenet-history/How Usenet propagated discussions without one owner or database—and created enduring norms for threads, moderation, spam, and archives.Sun, 12 Jul 2026 00:00:00 GMTTech Historyusenetuucpnntphttps://danielcosenza.com/posts/th-wifi-80211/https://danielcosenza.com/posts/th-wifi-80211/How IEEE radio standards, Wi-Fi Alliance certification, unlicensed spectrum, security repairs, and product naming built a mass market.Sun, 12 Jul 2026 00:00:00 GMTTech Historywifi802.11wirelesshttps://danielcosenza.com/posts/th-xerox-parc-gui/https://danielcosenza.com/posts/th-xerox-parc-gui/What PARC actually built, what preceded it, what Apple saw in 1979, and how research ideas became distinct Lisa and Macintosh products.Sun, 12 Jul 2026 00:00:00 GMTTech Historyxerox-parcguialtohttps://danielcosenza.com/posts/th-dotcom-bubble/https://danielcosenza.com/posts/th-dotcom-bubble/A forensic account of the dot-com boom, its long collapse, and why real innovation coexisted with prices that outran plausible profits.Sat, 11 Jul 2026 00:00:00 GMTTech Historydeep-divedotcomhistorymarketshttps://danielcosenza.com/posts/th-fix-atari-landfill-not-just-et/https://danielcosenza.com/posts/th-fix-atari-landfill-not-just-et/The 2014 Alamogordo dig recovered cartridges spanning 59 different titles, not just E.T. — evidence of a market-wide inventory purge.Sat, 11 Jul 2026 00:00:00 GMTTech Historyfixmythatarivideo-gameshttps://danielcosenza.com/posts/th-fix-napster-not-first-p2p/https://danielcosenza.com/posts/th-fix-napster-not-first-p2p/BBSes, Usenet, FTP, and IRC were moving files between strangers a decade or more before Napster's 1999 launch. What Napster actually added.Sat, 11 Jul 2026 00:00:00 GMTTech Historyfixmythnapsterfile-sharinghttps://danielcosenza.com/posts/th-fix-web-vs-internet-conflation/https://danielcosenza.com/posts/th-fix-web-vs-internet-conflation/One is a network of networks from the 1970s-80s; the other is a hypertext application built on top of it in 1990. The difference still matters.Sat, 11 Jul 2026 00:00:00 GMTTech Historyfixmythinternetworld-wide-webhttps://danielcosenza.com/posts/th-fix-y2k-not-a-hoax/https://danielcosenza.com/posts/th-fix-y2k-not-a-hoax/Why Y2K remediation, documented failures, and government testing show the bug was real—and why a quiet January 1 was evidence of preparation, not a hoax.Sat, 11 Jul 2026 00:00:00 GMTTech Historyfixmythy2khistoryhttps://danielcosenza.com/posts/th-history/https://danielcosenza.com/posts/th-history/A field guide to this blog's evidence-first computing history: what belongs here, how sources are weighed, and why popular myths get corrected.Sat, 11 Jul 2026 00:00:00 GMTTech Historyhistorymetahttps://danielcosenza.com/posts/th-howto-emulate-ibm-pc/https://danielcosenza.com/posts/th-howto-emulate-ibm-pc/Set up 86Box, PCjs, or MartyPC to recreate the 5150's real hardware — 8088 at 4.77 MHz, floppy-only boot, PC DOS — and feel the 1981 constraints.Sat, 11 Jul 2026 00:00:00 GMTTech Historyhowtoibm-pcemulationdoshttps://danielcosenza.com/posts/th-howto-explore-source-code-history/https://danielcosenza.com/posts/th-howto-explore-source-code-history/Where to legally read the code behind computing history: Netscape 1998, early Unix via TUHS, museum releases like MacPaint, and id's GPL drops.Sat, 11 Jul 2026 00:00:00 GMTTech Historyhowtosource-codeopen-sourceresearchhttps://danielcosenza.com/posts/th-howto-fact-check-tech-history/https://danielcosenza.com/posts/th-howto-fact-check-tech-history/A practical checklist for verifying tech history claims before repeating them: earliest sources, denials, primary documents, and citogenesis traps.Sat, 11 Jul 2026 00:00:00 GMTTech Historyhowtofact-checkingmethodologyresearchhttps://danielcosenza.com/posts/th-howto-internet-archive-software/https://danielcosenza.com/posts/th-howto-internet-archive-software/Run preserved historical software in your browser through archive.org's collections, check provenance metadata, and use emulated originals for research.Sat, 11 Jul 2026 00:00:00 GMTTech Historyhowtointernet-archivepreservationsoftwarehttps://danielcosenza.com/posts/th-howto-play-1980s-games-legally/https://danielcosenza.com/posts/th-howto-play-1980s-games-legally/Official re-releases like Atari 50, Arcade Archives, subscription libraries, licensed mini consoles, and original hardware — legal paths to 1983-era games.Sat, 11 Jul 2026 00:00:00 GMTTech Historyhowtovideo-gamespreservationlegalhttps://danielcosenza.com/posts/th-howto-play-old-browsers/https://danielcosenza.com/posts/th-howto-play-old-browsers/Run Navigator or Mosaic via oldweb.today, a period VM, or archive.org emulation — and pair them with Wayback captures for the real 1990s experience.Sat, 11 Jul 2026 00:00:00 GMTTech Historyhowtonetscapeemulationpreservationhttps://danielcosenza.com/posts/th-howto-preserve-old-software/https://danielcosenza.com/posts/th-howto-preserve-old-software/Image floppies at the flux level with Greaseweazle or KryoFlux, verify with checksums, follow 3-2-1 storage, and archive disks before they fade.Sat, 11 Jul 2026 00:00:00 GMTTech Historyhowtopreservationarchivingdigitizationhttps://danielcosenza.com/posts/th-howto-research-primary-sources/https://danielcosenza.com/posts/th-howto-research-primary-sources/Move from a secondhand claim to a verified fact using SEC filings, court opinions via RECAP, Usenet archives, and contemporaneous announcements.Sat, 11 Jul 2026 00:00:00 GMTTech Historyhowtoresearchprimary-sourcesmethodologyhttps://danielcosenza.com/posts/th-howto-trace-patents-standards/https://danielcosenza.com/posts/th-howto-trace-patents-standards/Use Google Patents, Espacenet, and USPTO records — filing dates, prior art, assignments, litigation — to trace who actually built what first.Sat, 11 Jul 2026 00:00:00 GMTTech Historyhowtopatentsstandardsresearchhttps://danielcosenza.com/posts/th-howto-visit-computer-history-museum/https://danielcosenza.com/posts/th-howto-visit-computer-history-museum/Plan around live demos like CHM's IBM 1401 and Bletchley's Colossus rebuild, mine oral history archives, and use collection databases remotely.Sat, 11 Jul 2026 00:00:00 GMTTech Historyhowtomuseumspreservationresearchhttps://danielcosenza.com/posts/th-howto-wayback-machine/https://danielcosenza.com/posts/th-howto-wayback-machine/Find dated captures of any URL, compare page versions over time, query the CDX API, and cite Wayback Machine snapshots as real primary sources.Sat, 11 Jul 2026 00:00:00 GMTTech Historyhowtowayback-machineresearcharchiveshttps://danielcosenza.com/posts/th-ibm-pc/https://danielcosenza.com/posts/th-ibm-pc/How IBM's rushed 5150 became a cloneable platform—and why published interfaces, an independent BIOS, and DOS all mattered.Sat, 11 Jul 2026 00:00:00 GMTTech Historydeep-diveibmhardwarestandardshttps://danielcosenza.com/posts/th-mainframe-to-micro/https://danielcosenza.com/posts/th-mainframe-to-micro/How transistors, integrated circuits, memory, displays, batteries, and manufacturing—not one magic chip—made personal computing portable.Sat, 11 Jul 2026 00:00:00 GMTTech Historydeep-divehardwarehistorymicroprocessorshttps://danielcosenza.com/posts/th-news-aol-netscape-deal/https://danielcosenza.com/posts/th-news-aol-netscape-deal/How AOL's 1998 all-stock Netscape agreement combined a portal, enterprise software, talent, and browser leverage—not one simple Microsoft counterattack.Sat, 11 Jul 2026 00:00:00 GMTTech Historynewsnetscapeaolacquisitionhttps://danielcosenza.com/posts/th-news-first-website-public/https://danielcosenza.com/posts/th-news-first-website-public/What Tim Berners-Lee's August 6, 1991 Usenet summary actually announced—and why it was neither the internet's birth nor the first site's launch date.Sat, 11 Jul 2026 00:00:00 GMTTech Historynewsworld-wide-webhistoryinternethttps://danielcosenza.com/posts/th-news-ibm-pc-launch/https://danielcosenza.com/posts/th-news-ibm-pc-launch/IBM launched the 5150 in August 1981 with an unusually modular design whose documentation and suppliers helped create the PC-compatible market.Sat, 11 Jul 2026 00:00:00 GMTTech Historynewsibmhardwarehistoryhttps://danielcosenza.com/posts/th-news-napster-launches/https://danielcosenza.com/posts/th-news-napster-launches/How Napster's June 1999 launch paired a central search index with peer-to-peer transfers—and why its short life permanently changed digital music.Sat, 11 Jul 2026 00:00:00 GMTTech Historynewsnapstermusichistoryhttps://danielcosenza.com/posts/th-news-netscape-ipo/https://danielcosenza.com/posts/th-news-netscape-ipo/Netscape's spectacular August 1995 debut became a symbol of internet investing, but one trading day did not create the dot-com bubble by itself.Sat, 11 Jul 2026 00:00:00 GMTTech Historynewsnetscapeipohistoryhttps://danielcosenza.com/posts/th-news-netscape-open-source/https://danielcosenza.com/posts/th-news-netscape-open-source/Netscape's January 1998 pledge led to Mozilla's first source release in March, but converting old browser code into Firefox took years.Sat, 11 Jul 2026 00:00:00 GMTTech Historynewsnetscapeopen-sourcemozillahttps://danielcosenza.com/posts/th-news-video-game-crash-begins/https://danielcosenza.com/posts/th-news-video-game-crash-begins/How oversupply, weak publishing controls, retailer losses, and shifting consumer demand drove the US console market into its 1983–1985 collapse.Sat, 11 Jul 2026 00:00:00 GMTTech Historynewsvideo-gamesatarihistoryhttps://danielcosenza.com/posts/th-arpanet-internet/https://danielcosenza.com/posts/th-arpanet-internet/Trace ARPANET from NCP through TCP/IP, gateways and the 1983 transition—and correct the myth that one protocol simply swallowed every rival network.Fri, 10 Jul 2026 00:00:00 GMTTech Historydeep-divearpanetinternetprotocolshttps://danielcosenza.com/posts/th-browser-wars/https://danielcosenza.com/posts/th-browser-wars/Reconstruct Netscape's rise and Internet Explorer's distribution campaign using the Microsoft antitrust record, product history and Mozilla evidence.Fri, 10 Jul 2026 00:00:00 GMTTech Historydeep-divenetscapebrowsermicrosofthttps://danielcosenza.com/posts/th-fix-640k-gates-misquote/https://danielcosenza.com/posts/th-fix-640k-gates-misquote/The famous '640K ought to be enough' line has no verified source, and Gates denied it on the record. What the paper trail actually shows.Fri, 10 Jul 2026 00:00:00 GMTTech Historyfixmythbill-gateshistoryhttps://danielcosenza.com/posts/th-fix-al-gore-internet-quote/https://danielcosenza.com/posts/th-fix-al-gore-internet-quote/Gore never said 'I invented the internet.' The exact 1999 sentence, how it mutated within days, and what Cerf and Kahn say his record shows.Fri, 10 Jul 2026 00:00:00 GMTTech Historyfixmythinternethistoryhttps://danielcosenza.com/posts/th-fix-eniac-abc-dispute/https://danielcosenza.com/posts/th-fix-eniac-abc-dispute/ENIAC is taught as the first electronic computer, but 1973's Honeywell v. Sperry Rand invalidated its patent — partly over a 1941 visit to Atanasoff.Fri, 10 Jul 2026 00:00:00 GMTTech Historyfixmythhistorypatentshttps://danielcosenza.com/posts/th-fix-first-email-myth/https://danielcosenza.com/posts/th-fix-first-email-myth/Ray Tomlinson deserves credit for one specific breakthrough: networked email. Same-machine electronic mail existed years before he touched it.Fri, 10 Jul 2026 00:00:00 GMTTech Historyfixmythemailarpanethttps://danielcosenza.com/posts/th-fix-jobs-wozniak-pc-myth/https://danielcosenza.com/posts/th-fix-jobs-wozniak-pc-myth/The Apple I and II are often credited as the birth of personal computing. The Altair 8800 beat them to market by more than a year.Fri, 10 Jul 2026 00:00:00 GMTTech Historyfixmythapplehistoryhttps://danielcosenza.com/posts/th-grace-hopper-bug/https://danielcosenza.com/posts/th-grace-hopper-bug/What the preserved 1947 Mark II logbook proves about its famous moth, what later retellings invented, and what Hopper actually achieved.Fri, 10 Jul 2026 00:00:00 GMTTech Historydeep-divehistorygrace-hopperdebugginghttps://danielcosenza.com/posts/th-howto-read-rfcs/https://danielcosenza.com/posts/th-howto-read-rfcs/Find RFCs, decode status and obsoleted-by chains, read MUST/SHOULD normative language, and use the primary specs behind email and the web.Fri, 10 Jul 2026 00:00:00 GMTTech Historyhowtorfcinternetprimary-sourceshttps://danielcosenza.com/posts/th-morris-worm/https://danielcosenza.com/posts/th-morris-worm/How the 1988 Morris Worm spread through Unix systems, disrupted the young internet, drove CERT's creation, and led to a landmark US computer-crime conviction.Fri, 10 Jul 2026 00:00:00 GMTTech Historydeep-divesecuritymorris-wormhistoryhttps://danielcosenza.com/posts/th-napster-p2p/https://danielcosenza.com/posts/th-napster-p2p/How Napster's centralized index enabled peer-to-peer music sharing, triggered landmark litigation, and forced the recording industry toward digital distribution.Fri, 10 Jul 2026 00:00:00 GMTTech Historydeep-divenapstermusicpeer-to-peerhttps://danielcosenza.com/posts/th-news-google-founded/https://danielcosenza.com/posts/th-news-google-founded/Google's September 1998 incorporation turned a Stanford search prototype into a company, but the algorithm, domain, and first funding came earlier.Fri, 10 Jul 2026 00:00:00 GMTTech Historynewsgooglehistorysearchhttps://danielcosenza.com/posts/th-news-morris-worm-released/https://danielcosenza.com/posts/th-news-morris-worm-released/What happened on November 2, 1988, how the Morris Worm propagated, why it overloaded hosts, and how the incident changed internet security coordination.Fri, 10 Jul 2026 00:00:00 GMTTech Historynewssecuritymorris-wormhistoryhttps://danielcosenza.com/posts/th-video-game-crash-1983/https://danielcosenza.com/posts/th-video-game-crash-1983/Why the US video game crash was a market and distribution failure—not one bad cartridge—and how Nintendo rebuilt retailer and consumer trust.Fri, 10 Jul 2026 00:00:00 GMTTech Historydeep-divevideo-gameshistoryatarihttps://danielcosenza.com/posts/th-y2k/https://danielcosenza.com/posts/th-y2k/How two-digit dates created genuine Y2K risk, what engineers repaired before 2000, and why the rollover's relative calm reflected successful prevention.Fri, 10 Jul 2026 00:00:00 GMTTech Historydeep-divey2khistorysoftware