{"id":39248,"date":"2020-12-14T16:00:10","date_gmt":"2020-12-14T14:00:10","guid":{"rendered":"http:\/\/life.karpat.in.ua\/?p=39248"},"modified":"2020-12-14T15:16:43","modified_gmt":"2020-12-14T13:16:43","slug":"meghalt-a-mernok-akinek-a-vezetek-nelkuli-halozatokat-koszonhetjuk","status":"publish","type":"post","link":"https:\/\/life.karpat.in.ua\/?p=39248&lang=hu","title":{"rendered":"Meghalt a m\u00e9rn\u00f6k, akinek a vezet\u00e9k n\u00e9lk\u00fcli h\u00e1l\u00f3zatokat k\u00f6sz\u00f6nhetj\u00fck"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"728\" height=\"417\" src=\"http:\/\/life.karpat.in.ua\/wp-content\/uploads\/2020\/12\/norman-abramson-dyn-fullwidth.jpg\" alt=\"\" class=\"wp-image-39249\" srcset=\"https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2020\/12\/norman-abramson-dyn-fullwidth.jpg 728w, https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2020\/12\/norman-abramson-dyn-fullwidth-300x172.jpg 300w\" sizes=\"auto, (max-width: 728px) 100vw, 728px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>A napokban, 88 \u00e9ves kor\u00e1ban elhunyt Norman Abramson, amerikai m\u00e9rn\u00f6k \u00e9s sz\u00e1m\u00edt\u00f3g\u00e9ptud\u00f3s, akit a modern vezet\u00e9k n\u00e9lk\u00fcli h\u00e1l\u00f3zatok atyj\u00e1nak tartanak.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0150 volt ugyanis az, aki a vil\u00e1gon el\u0151sz\u00f6r hozott l\u00e9tre egy olyan, r\u00e1di\u00f3jelekkel \u00fczemel\u0151 kommunik\u00e1ci\u00f3s h\u00e1l\u00f3zatot, ami a ma is haszn\u00e1lt Wi-Fi \u00e9s mobilh\u00e1l\u00f3zatokhoz hasonl\u00f3an m\u0171k\u00f6d\u00f6tt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Abramson f\u00e9l \u00e9vsz\u00e1zaddal ezel\u0151tt, a Hawaii Egyetem munkat\u00e1rsak\u00e9nt kapta a feladatot, hogy dolgozzon ki egy olyan h\u00e1l\u00f3zatot, aminek seg\u00edts\u00e9g\u00e9vel az egyetem a Hawaii-szigeteken \u00e9s a kontinent\u00e1lis Amerik\u00e1n l\u00e9v\u0151 int\u00e9zm\u00e9nyei gyorsan \u00e9s megb\u00edzhat\u00f3an tudnak kommunik\u00e1lni egym\u00e1ssal. Ennek eredm\u00e9nyek\u00e9nt j\u00f6tt l\u00e9tre az ALOHAnet, ami a vil\u00e1gon els\u0151k\u00e9nt alkalmazta a k\u00e9s\u0151bb a modern vezet\u00e9k n\u00e9lk\u00fcli h\u00e1l\u00f3zatokban is haszn\u00e1lt, azok hat\u00e9kony m\u0171k\u00f6d\u00e9s\u00e9t lehet\u0151v\u00e9 tev\u0151 technol\u00f3gi\u00e1kat.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ezek k\u00f6z\u00fcl a legfontosabb az volt, hogy a kommunik\u00e1ci\u00f3t \u00e9s az \u00e1tvitt adatokat kisebb csomagokra bontotta, \u00e9s olyan mechanizmust iktatott be a kommunik\u00e1ci\u00f3ba, ami ezek s\u00e9r\u00fcl\u00e9se vagy elveszt\u00e9se eset\u00e9n \u00fajb\u00f3li \u00e1tvitellel lehet\u0151v\u00e9 tette azok p\u00f3tl\u00e1s\u00e1t vagy korrig\u00e1l\u00e1s\u00e1t.Ez a m\u00f3dszer nem az adatok hi\u00e1nytalan \u00e9s megb\u00edzhat\u00f3, m\u00e9gis gyors \u00e1tvitel\u00e9t tette lehet\u0151v\u00e9, de r\u00e1ad\u00e1sul egy azt is, hogy sokcsom\u00f3pontos, \u00fan. v\u00e9letlen hozz\u00e1f\u00e9r\u00e9s\u0171 h\u00e1l\u00f3zatok ker\u00fclhessenek kialak\u00edt\u00e1sra, amikben nem kell a csatorna haszn\u00e1lat\u00e1ra rendelkez\u00e9sre \u00e1ll\u00f3 id\u0151t el\u0151re felosztaniuk a v\u00e9gpontoknak egym\u00e1s k\u00f6z\u00f6tt.K\u00e9s\u0151bb egy\u00e9bk\u00e9nt ugyanezeket a megold\u00e1sokat alkalmazt\u00e1k az ugyan vezet\u00e9ken kommunik\u00e1l\u00f3, de a vezet\u00e9k n\u00e9lk\u00fcli h\u00e1l\u00f3zatokkal szoros rokons\u00e1gban l\u00e9v\u0151 Ethernet h\u00e1l\u00f3zatok eset\u00e9ben is, valamint a modern mobiltelefonos h\u00e1l\u00f3zatokban, s\u0151t, a m\u0171holdas kommunik\u00e1ci\u00f3ban is, amik szint\u00e9n ugyanezen alapelveken m\u0171k\u00f6dnek \u00e9s hasonl\u00f3 megold\u00e1sokra \u00e9p\u00fclnek napjainkban is.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Forr\u00e1s:<a href=\"https:\/\/pcforum.hu\/hirek\/22960\/meghalt-a-mernok-akinek-a-vezetek-nelkuli-halozatokat-koszonhetjuk?fbclid=IwAR1GalMh3e2id6mhLXUUVrkWYrF1Dc0aQOFkrKlmwlZKhCfe5A4woe41L0o\" target=\"_blank\" rel=\"noreferrer noopener\"> pcforum.hu<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A napokban, 88 \u00e9ves kor\u00e1ban elhunyt Norman Abramson, amerikai m\u00e9rn\u00f6k \u00e9s sz\u00e1m\u00edt\u00f3g\u00e9ptud\u00f3s, akit a modern vezet\u00e9k n\u00e9lk\u00fcli h\u00e1l\u00f3zatok atyj\u00e1nak tartanak.<\/p>\n","protected":false},"author":4,"featured_media":39249,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41,49,590,598],"tags":[912,29782],"class_list":["post-39248","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cikkek","category-hirek","category-it-hu","category-tudomany","tag-elhunyt","tag-vezetek-nelkuli-halozat"],"_links":{"self":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts\/39248","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=39248"}],"version-history":[{"count":0,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts\/39248\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/media\/39249"}],"wp:attachment":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=39248"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=39248"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=39248"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}