{"id":8906,"date":"2021-07-12T08:49:36","date_gmt":"2021-07-12T08:49:36","guid":{"rendered":"https:\/\/museo.inf.upv.es\/?page_id=8906"},"modified":"2021-07-15T15:31:39","modified_gmt":"2021-07-15T15:31:39","slug":"smalltalk","status":"publish","type":"page","link":"https:\/\/museo.inf.upv.es\/va\/smalltalk\/","title":{"rendered":"Smalltalk"},"content":{"rendered":"
\n
\n

<\/p>\n

El Llenguatge de Programaci\u00f3 Smalltalk<\/strong><\/h1>\n

\"alan<\/a>Producte d\u2019un equip liderat per Alan Kay<\/strong>, Smalltalk<\/strong> es presenta com un llenguatge orientat a objectes i tipat din\u00e0mic. Despr\u00e9s de distintes versions publicades durant els anys 70, el 1980 es publica la primera versi\u00f3 \u00e0mpliament distribu\u00efda (Smalltalk-80) que va constituir la base de l\u2019est\u00e0ndard ANSI<\/strong> ratificat el 1998.<\/p>\n

Smalltalk sorgeix en el context del programa ARPA<\/strong>, projecte finan\u00e7at durant els anys 60 i d\u2019on sorgeixen altres resultats i tecnologies (com ara l\u2019hipertext, les GUI, la multim\u00e8dia o Internet) que defineixen el que avui entenem com a inform\u00e0tica. En particular, les caracter\u00edstiques del llenguatge, les eines de depuraci\u00f3 i l\u2019entorn de desenvolupament, influ\u00efren en el desenvolupament de les modernes GUI i els entorns WYSISYG<\/strong> (What You See Is What You Get<\/em>).<\/p>\n

\"Smalltalk-80<\/a>

Smalltalk-80 Book<\/p><\/div>\n

A difer\u00e8ncia d\u2019altres llenguatges orientats a objectes, Smalltalk<\/strong> considera tots els elements implicats en el codi com objectes, sense diferenciar entre objectes i tipus primitius, com ara C++<\/a> o Java<\/a>. La sintaxi de Smalltalk \u00e9s minimalista i considera exclusivament sis paraules reservades, en qu\u00e8 est\u00e0 relacionada l\u2019execuci\u00f3 d\u2019operacions amb l\u2019enviament de missatges. Una altra caracter\u00edstica de Smalltalk<\/strong> \u00e9s la capacitat d\u2019un programa d\u2019accedir a la seua estructura i modificar-la; \u00e9s a dir, la capacitat d\u2019un programa d\u2019automodificar-se.<\/p>\n

Tot i que no va ser l\u2019\u00fanic llenguatge que recull l\u2019enfocament de programaci\u00f3 orientat a objectes presentat originalment per Simula, Smalltalk-80 s\u00ed \u00e9s el llenguatge que m\u00e9s \u00e8xit t\u00e9 i que, per tant, popularitza aquest paradigma de programaci\u00f3. Pr\u00e0cticament, tots els llenguatges posteriors que suporten orientaci\u00f3 a objectes (Java<\/a>, Python<\/a>, Objective-C<\/strong>, etc.) han estat influ\u00efts per Smalltalk<\/strong>.<\/p>\n

Atesa la import\u00e0ncia dels llenguatges influ\u00efts per Smalltalk, actualment no \u00e9s molt utilitzat i no apareix entre els 50 llenguatges m\u00e9s populars del r\u00e0nquing TIOBE<\/a> (2021).<\/p>\n

<\/p>\n<\/div>\n\n\n\n

\n

<\/p>\n

\n

Smalltalk<\/h3>\n
Naixement<\/strong>:1960
Evoluci\u00f3<\/strong>: Smalltalk-71; Smalltalk-72; Smalltalk-76; Smalltalk-80; ANSI Smalltalk (1998)
Influ\u00e8ncies de<\/strong>: Simula; Lisp; Logo
Influeix en<\/strong>: Objective-C; Java; Python; Scratch<\/div>\n

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

El Llenguatge de Programaci\u00f3 Smalltalk Producte d\u2019un equip liderat per Alan Kay, Smalltalk es presenta com un llenguatge orientat a objectes i tipat din\u00e0mic. Despr\u00e9s de distintes versions publicades durant els anys 70, el 1980 es publica la primera versi\u00f3 \u00e0mpliament distribu\u00efda (Smalltalk-80) que va constituir la base de l\u2019est\u00e0ndard ANSI ratificat el 1998. Smalltalk […]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-8906","page","type-page","status-publish","hentry","post"],"yoast_head":"\nSmalltalk - Web del Museo de Inform\u00e1tica 2.0<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/museo.inf.upv.es\/smalltalk\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Smalltalk - Web del Museo de Inform\u00e1tica 2.0\" \/>\n<meta property=\"og:description\" content=\"El Llenguatge de Programaci\u00f3 Smalltalk Producte d\u2019un equip liderat per Alan Kay, Smalltalk es presenta com un llenguatge orientat a objectes i tipat din\u00e0mic. Despr\u00e9s de distintes versions publicades durant els anys 70, el 1980 es publica la primera versi\u00f3 \u00e0mpliament distribu\u00efda (Smalltalk-80) que va constituir la base de l\u2019est\u00e0ndard ANSI ratificat el 1998. Smalltalk […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/museo.inf.upv.es\/smalltalk\/\" \/>\n<meta property=\"og:site_name\" content=\"Web del Museo de Inform\u00e1tica 2.0\" \/>\n<meta property=\"article:modified_time\" content=\"2021-07-15T15:31:39+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/museo.inf.upv.es\/wp-content\/uploads\/2021\/07\/AlanKayOnMessaging_v001-300x109.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/museo.inf.upv.es\\\/smalltalk\\\/\",\"url\":\"https:\\\/\\\/museo.inf.upv.es\\\/smalltalk\\\/\",\"name\":\"Smalltalk - Web del Museo de Inform\u00e1tica 2.0\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/museo.inf.upv.es\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/museo.inf.upv.es\\\/smalltalk\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/museo.inf.upv.es\\\/smalltalk\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/museo.inf.upv.es\\\/wp-content\\\/uploads\\\/2021\\\/07\\\/AlanKayOnMessaging_v001-300x109.jpg\",\"datePublished\":\"2021-07-12T08:49:36+00:00\",\"dateModified\":\"2021-07-15T15:31:39+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/museo.inf.upv.es\\\/smalltalk\\\/#breadcrumb\"},\"inLanguage\":\"va-VA\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/museo.inf.upv.es\\\/smalltalk\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"va-VA\",\"@id\":\"https:\\\/\\\/museo.inf.upv.es\\\/smalltalk\\\/#primaryimage\",\"url\":\"https:\\\/\\\/museo.inf.upv.es\\\/wp-content\\\/uploads\\\/2021\\\/07\\\/AlanKayOnMessaging_v001-300x109.jpg\",\"contentUrl\":\"https:\\\/\\\/museo.inf.upv.es\\\/wp-content\\\/uploads\\\/2021\\\/07\\\/AlanKayOnMessaging_v001-300x109.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/museo.inf.upv.es\\\/smalltalk\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Portada\",\"item\":\"https:\\\/\\\/museo.inf.upv.es\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Smalltalk\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/museo.inf.upv.es\\\/#website\",\"url\":\"https:\\\/\\\/museo.inf.upv.es\\\/\",\"name\":\"Web del Museo de Inform\u00e1tica 2.0\",\"description\":\"Web del Museo de Inform\u00e1tica 2.0\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/museo.inf.upv.es\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"va-VA\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Smalltalk - Web del Museo de Inform\u00e1tica 2.0","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/museo.inf.upv.es\/smalltalk\/","og_locale":"en_US","og_type":"article","og_title":"Smalltalk - Web del Museo de Inform\u00e1tica 2.0","og_description":"El Llenguatge de Programaci\u00f3 Smalltalk Producte d\u2019un equip liderat per Alan Kay, Smalltalk es presenta com un llenguatge orientat a objectes i tipat din\u00e0mic. Despr\u00e9s de distintes versions publicades durant els anys 70, el 1980 es publica la primera versi\u00f3 \u00e0mpliament distribu\u00efda (Smalltalk-80) que va constituir la base de l\u2019est\u00e0ndard ANSI ratificat el 1998. Smalltalk […]","og_url":"https:\/\/museo.inf.upv.es\/smalltalk\/","og_site_name":"Web del Museo de Inform\u00e1tica 2.0","article_modified_time":"2021-07-15T15:31:39+00:00","og_image":[{"url":"https:\/\/museo.inf.upv.es\/wp-content\/uploads\/2021\/07\/AlanKayOnMessaging_v001-300x109.jpg","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/museo.inf.upv.es\/smalltalk\/","url":"https:\/\/museo.inf.upv.es\/smalltalk\/","name":"Smalltalk - Web del Museo de Inform\u00e1tica 2.0","isPartOf":{"@id":"https:\/\/museo.inf.upv.es\/#website"},"primaryImageOfPage":{"@id":"https:\/\/museo.inf.upv.es\/smalltalk\/#primaryimage"},"image":{"@id":"https:\/\/museo.inf.upv.es\/smalltalk\/#primaryimage"},"thumbnailUrl":"https:\/\/museo.inf.upv.es\/wp-content\/uploads\/2021\/07\/AlanKayOnMessaging_v001-300x109.jpg","datePublished":"2021-07-12T08:49:36+00:00","dateModified":"2021-07-15T15:31:39+00:00","breadcrumb":{"@id":"https:\/\/museo.inf.upv.es\/smalltalk\/#breadcrumb"},"inLanguage":"va-VA","potentialAction":[{"@type":"ReadAction","target":["https:\/\/museo.inf.upv.es\/smalltalk\/"]}]},{"@type":"ImageObject","inLanguage":"va-VA","@id":"https:\/\/museo.inf.upv.es\/smalltalk\/#primaryimage","url":"https:\/\/museo.inf.upv.es\/wp-content\/uploads\/2021\/07\/AlanKayOnMessaging_v001-300x109.jpg","contentUrl":"https:\/\/museo.inf.upv.es\/wp-content\/uploads\/2021\/07\/AlanKayOnMessaging_v001-300x109.jpg"},{"@type":"BreadcrumbList","@id":"https:\/\/museo.inf.upv.es\/smalltalk\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Portada","item":"https:\/\/museo.inf.upv.es\/"},{"@type":"ListItem","position":2,"name":"Smalltalk"}]},{"@type":"WebSite","@id":"https:\/\/museo.inf.upv.es\/#website","url":"https:\/\/museo.inf.upv.es\/","name":"Web del Museo de Inform\u00e1tica 2.0","description":"Web del Museo de Inform\u00e1tica 2.0","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/museo.inf.upv.es\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"va-VA"}]}},"_links":{"self":[{"href":"https:\/\/museo.inf.upv.es\/va\/wp-json\/wp\/v2\/pages\/8906","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/museo.inf.upv.es\/va\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/museo.inf.upv.es\/va\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/museo.inf.upv.es\/va\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/museo.inf.upv.es\/va\/wp-json\/wp\/v2\/comments?post=8906"}],"version-history":[{"count":18,"href":"https:\/\/museo.inf.upv.es\/va\/wp-json\/wp\/v2\/pages\/8906\/revisions"}],"predecessor-version":[{"id":9283,"href":"https:\/\/museo.inf.upv.es\/va\/wp-json\/wp\/v2\/pages\/8906\/revisions\/9283"}],"wp:attachment":[{"href":"https:\/\/museo.inf.upv.es\/va\/wp-json\/wp\/v2\/media?parent=8906"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}