{"id":3116,"date":"2021-07-29T16:52:36","date_gmt":"2021-07-29T14:52:36","guid":{"rendered":"http:\/\/wptest.nexum.cz\/5-faktu-o-internetu-ktere-jste-mozna-nevedeli\/"},"modified":"2021-07-29T16:52:36","modified_gmt":"2021-07-29T14:52:36","slug":"5-faktu-o-internetu-ktere-jste-mozna-nevedeli","status":"publish","type":"post","link":"https:\/\/www.webmium.cz\/blog\/5-faktu-o-internetu-ktere-jste-mozna-nevedeli\/","title":{"rendered":"5 fakt\u016f o internetu, kter\u00e9 jste mo\u017en\u00e1 nev\u011bd\u011bli"},"content":{"rendered":"

Internet je pojem, kter\u00fd zn\u00e1 v dne\u0161n\u00ed dob\u011b t\u00e9m\u011b\u0159 ka\u017ed\u00fd. Ka\u017ed\u00fd ho b\u011b\u017en\u011b vyu\u017e\u00edv\u00e1, aby na\u0161el informace, kter\u00e9 pot\u0159ebuje. Na internetu lze zjistit jak\u00e9koliv informace, sta\u010d\u00ed jen dob\u0159e hledat. I vyhled\u00e1v\u00e1n\u00ed na internetu vy\u017eaduje ur\u010ditou praxi. V dne\u0161n\u00edm \u010dl\u00e1nku se budeme zab\u00fdvat m\u00e9n\u011b zn\u00e1m\u00fdmi fakty o internetu, kter\u00e9 jste mo\u017en\u00e1 nev\u011bd\u011bli.<\/p>\n

    \n
  1. Internet je star\u00fd u\u017e p\u0159es 50 let, aneb pohled do historie.<\/strong> Praz\u00e1klady internetu byly polo\u017eeny v roce 1969, kdy ve Spojen\u00fdch st\u00e1tech americk\u00fdch byly vzd\u00e1len\u011b propojeny \u010dty\u0159i univerzitn\u00ed po\u010d\u00edta\u010de ve \u010dty\u0159ech r\u016fzn\u00fdch st\u00e1tech. Propojen\u00ed dostalo n\u00e1zev ARPANET. Tento akt m\u016f\u017eeme pova\u017eovat za z\u00e1rodek dne\u0161n\u00edho internetu. Samoz\u0159ejm\u011b, \u017ee toto prvotn\u00ed propojen\u00ed po\u010d\u00edta\u010d\u016f bylo n\u00e1ro\u010dn\u00fdm po\u010dinem, pro kter\u00fd bylo pot\u0159eba zajistit finan\u010dn\u00ed prost\u0159edky a nikoli mal\u00e9. Z toho d\u016fvodu byl ARPANET nejprve financov\u00e1n ministerstvem obrany Spojen\u00fdch st\u00e1t\u016f a pozd\u011bji instituc\u00ed NSF, kter\u00e1 podporuje v\u011bdu a v\u00fdzkum. N\u00e1sledn\u011b do\u0161lo k propojen\u00ed s\u00edt\u011b ARPANET se s\u00edt\u00ed NSFNET. D\u00edky k tomuto slou\u010den\u00ed za\u010dalo doch\u00e1zet k masov\u00e9mu propojov\u00e1n\u00ed univerzitn\u00edch instituc\u00ed<\/strong> a t\u00edm p\u00e1dem i k r\u016fstu a rozvoji internetu.<\/li>\n
  2. Internet je decentralizovan\u00fd a nem\u00e1 vlastn\u00edka.<\/strong> V p\u0159edchoz\u00edm bod\u011b bylo uvedeno, \u017ee prvopo\u010d\u00e1tky internetu byly financov\u00e1ny ministerstvem obrany Spojen\u00fdch st\u00e1t\u016f. To by mohlo evokovat dojem, \u017ee internet t\u00e9to instituci tak\u00e9 pat\u0159\u00ed. Nen\u00ed tomu tak. Internet jako takov\u00fd nem\u00e1 \u017e\u00e1dn\u00e9ho majitele<\/strong>. Pouze zakladatele. Zm\u00edn\u011bn\u00e1 instituce NSF postupn\u011b p\u0159evzala roli ARPANETU, kter\u00fd byl pozd\u011bji odstaven a stal se p\u00e1te\u0159n\u00ed s\u00edt\u00ed interentu. Instituce NSF pozd\u011bji delegovala provozov\u00e1n\u00ed internetu na jednotliv\u00e9 (komer\u010dn\u00ed) poskytovatele a t\u00edm nastartovala decentralizaci internetu. Existuj\u00ed pouze majitel\u00e9 jednotliv\u00fdch s\u00edt\u00ed<\/strong>, kter\u00e9 jsou zapojeny do internetu.<\/li>\n
  3. Internet nikdo ne\u0159\u00edd\u00ed, a p\u0159esto se da\u0159\u00ed jeho rozvoji.<\/strong> Internet nem\u00e1 vlastn\u00edka, tedy nen\u00ed, kdo by ho \u0159\u00eddil a spravoval. Jak je tedy mo\u017en\u00e9, \u017ee v posledn\u00ed 30 letech dos\u00e1hl takov\u00e9ho rozmachu? Na internet lze pohl\u00ed\u017eet jako na voln\u00e9 komunitn\u00ed sdru\u017een\u00ed jednotlivc\u016f i organizac\u00ed, kter\u00e9 jsou do n\u011bj zapojeny. Pr\u00e1v\u011b tato komunita posouv\u00e1 internet kup\u0159edu<\/strong>. Neexistuje \u017e\u00e1dn\u00fd v\u016fdce internetu. Nejvy\u0161\u0161\u00ed autoritou v tomto \u201ckomunitn\u00edm sdru\u017een\u00ed\u201d je organizace ISOC (internet Society). Jedn\u00e1 se op\u011bt o dobrovoln\u00e9 sdru\u017een\u00ed funguj\u00edc\u00ed od roku 1992 a pln\u00ed roli koordin\u00e1tora v ot\u00e1zk\u00e1ch spojen\u00fdch s internetem. Nem\u00e1 v\u00fdkonnou ani rozhodovac\u00ed moc. ISOC m\u00e1 n\u011bkolik pod\u0159\u00edzen\u00fdch spole\u010dnost\u00ed, kter\u00e9 maj\u00ed technologick\u00fd status a zab\u00fdvaj\u00ed se rozvojem internetu a jeho inovac\u00ed.<\/li>\n
  4. IP adresy funguj\u00ed jako z\u00e1klad internetu.<\/strong> D\u00edky IP adres\u00e1m se dan\u00e1 za\u0159\u00edzen\u00ed v internetu vz\u00e1jemn\u011b rozezn\u00e1vaj\u00ed a mohou na sebe odkazovat. Po zad\u00e1n\u00ed ur\u010dit\u00e9 IP adresy se tedy dostanete na konkr\u00e9tn\u00ed webovou str\u00e1nku v r\u00e1mci internetu. V tomto okam\u017eiku nast\u00e1vaj\u00ed z\u00e1sadn\u00ed ot\u00e1zky okolo IP adresy. Kde takov\u00e9 adresy vznikaj\u00ed a kdo rozhoduje o jejich distribuci? Tato funkce je sv\u011b\u0159ena soukrom\u00e9 neziskov\u00e9 organizaci\u00a0 ICANN<\/strong> (Internet Corporation for Assigned Names and Numbers), kter\u00e1 se do ur\u010dit\u00e9 m\u00edry star\u00e1 o rozd\u011blen\u00ed internetov\u00e9ho prostoru pomoc\u00ed IP adres.<\/li>\n
  5. Internet m\u00e1 sv\u00e9 hranice.<\/strong> Pomoc\u00ed internetu lze propagovat my\u0161lenky a n\u00e1zory nap\u0159\u00ed\u010d sv\u011btad\u00edly a a\u010dkoliv bylo uvedeno, \u017ee na internetu lze nal\u00e9zt jak\u00e9koliv informace, tak internet m\u016f\u017ee b\u00fdt a tak\u00e9 je v mnoh\u00fdch p\u0159\u00edpadech cenzurov\u00e1n nebo vyu\u017e\u00edv\u00e1n k \u0161\u00ed\u0159en\u00ed ideologi\u00ed. Nelze se domn\u00edvat, \u017ee pohyb v internetov\u00e9m prostoru je anonymizov\u00e1n. V podstat\u011b ka\u017ed\u00fd pohyb na n\u011bm je monitorov\u00e1n a tak\u00e9 m\u016f\u017ee b\u00fdt kdykoliv cenzurov\u00e1n<\/strong>. Zcela b\u011b\u017en\u011b se tak d\u011bje v nedemokratick\u00fdch st\u00e1tech po cel\u00e9m sv\u011bt\u011b. Formy takov\u00e9 cenzury mohou m\u00edt podobu blokace cel\u00fdch slu\u017eeb (nap\u0159\u00edklad u\u017eivatel\u00e9 v mnoh\u00fdch st\u00e1tech nemaj\u00ed p\u0159\u00edstup na Facebook) nebo blokace ur\u010dit\u00fdch \u0161kodliv\u00fdch a nevhodn\u00fdch str\u00e1nek.<\/li>\n<\/ol>\n

    S rozvojem internetu se usnadnil p\u0159\u00edstup k informac\u00edm pro miliardy lid\u00ed po cel\u00e9m sv\u011bt\u011b. Internet je dobr\u00fd sluha, ale hranice mezi u\u017eite\u010dnost\u00ed a \u0161kodlivost\u00ed inernetu je tenk\u00e1. U\u017e\u00edvejte tedy v\u00fdhody internetu rozv\u00e1\u017en\u011b a s rozumem<\/strong>. Pokud tak u\u010din\u00edte, internet V\u00e1m poslou\u017e\u00ed k rozvoji Va\u0161\u00ed osobnosti, znalost\u00ed a dovednost\u00ed.<\/p>\n

    Pot\u0159ebujete nov\u00e9 webov\u00e9 str\u00e1nky nebo si s n\u00e1mi chcete popov\u00eddat o mo\u017enostech propagace Va\u0161ich str\u00e1nek v online sv\u011bt\u011b? Pak n\u00e1m napi\u0161te e-mail na info@webmium.cz<\/a> nebo vypl\u0148te formul\u00e1\u0159 na na\u0161ich webov\u00fdch str\u00e1nk\u00e1ch webmium.cz\/kontakt<\/a> a my se V\u00e1m brzy ozveme.<\/p>\n

    <\/p>\n","protected":false},"excerpt":{"rendered":"

    A\u010dkoliv je internet fenom\u00e9nem, kter\u00fd v\u0161ichni d\u016fv\u011brn\u011b zn\u00e1me a denn\u011b ho pou\u017e\u00edv\u00e1me, m\u00e1lokdo z n\u00e1s o n\u011bm v\u00ed z\u00e1kladn\u00ed fakta. Dnes si \u0159ekneme, co jste nejsp\u00ed\u0161 je\u0161t\u011b nev\u011bd\u011bli.<\/p>\n","protected":false},"author":7,"featured_media":1804,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[3],"tags":[],"class_list":["post-3116","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tipy-rady-a-novinky"],"yoast_head":"\n5 fakt\u016f o internetu, kter\u00e9 jste mo\u017en\u00e1 nev\u011bd\u011bli<\/title>\n<meta name=\"description\" content=\"A\u010dkoliv je internet fenom\u00e9nem, kter\u00fd v\u0161ichni d\u016fv\u011brn\u011b zn\u00e1me a denn\u011b ho pou\u017e\u00edv\u00e1me, m\u00e1lokdo z n\u00e1s o n\u011bm v\u00ed z\u00e1kladn\u00ed fakta. 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