{"id":1082,"date":"1981-01-18T12:27:13","date_gmt":"1981-01-18T12:27:13","guid":{"rendered":"http:\/\/localhost\/museum\/?page_id=1082"},"modified":"2021-04-19T09:20:48","modified_gmt":"2021-04-19T09:20:48","slug":"bbc-microcomputer-model-b","status":"publish","type":"page","link":"https:\/\/emuseum.ucsc.cmb.ac.lk\/?page_id=1082","title":{"rendered":"BBC Microcomputer Model B (1981)"},"content":{"rendered":"<p>[vc_row][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;1084&#8243; img_size=&#8221;full&#8221; onclick=&#8221;link_image&#8221; el_class=&#8221;museum_item&#8221;][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_column_text css=&#8221;.vc_custom_1618823924339{border-top-width: 0px !important;border-right-width: 0px !important;border-bottom-width: 0px !important;border-left-width: 0px !important;padding-top: 5px !important;padding-right: 5px !important;padding-bottom: 5px !important;padding-left: 5px !important;background-color: #000000 !important;}&#8221;]<\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">Model : Model 5160 &#8211; PC XT<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Developer: Acorn Computers<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Manufacturer: British Broadcasting Corporation (BBC)<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Released in: December 1, 1981<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Operating System: Acorn MOS<\/span><\/li>\n<\/ul>\n<h3><strong>Specifications<\/strong><\/h3>\n<ul>\n<li><span style=\"font-weight: 400;\">CPU: 2 MHz MOS Technology 6502<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Memory: 32 KiB<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Floppy Disk Drive: 2 x Floppy disks<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Media: Cassette tape<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Monitor\/ Display : BBC RGB\/PAL, UHF\/composite\/TTL Monitor<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Graphics : 640&#215;256, 8 colors<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Sound: Texas Instruments SN76489, 4 channel, mono<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Input: Keyboard<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Connectivity: Printer parallel, RS-423 serial, user parallel, Econet, 1MHz bus, Tube second processor interface<\/span><\/li>\n<\/ul>\n<p>[\/vc_column_text][vc_empty_space][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=&#8221;Description&#8221; font_container=&#8221;tag:h3|text_align:left|color:%23ffffff&#8221; google_fonts=&#8221;font_family:Montserrat%3Aregular%2C700|font_style:700%20bold%20regular%3A700%3Anormal&#8221;][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][vc_column_text]<\/p>\n<p style=\"text-align: justify;\">The BBC Microcomputer was launched in December 1981 as part of the BBC&#8217;s Computer Literacy Project. The Computer Literacy Project was created by the BBC (British Broadcasting Corporation) to increase computer literacy and to encourage as wide a range of people as possible to gain hands-on experience with a microcomputer. The BBC Microcomputer, or the &#8216;Beeb&#8217;, is based on the 6502A microprocessor, which ran at 2MHz, and has 32K of ROM (Read Only Memory). The Model A shipped with 16K RAM(Random Access Memory) and cost \u00a3299. The Model B shipped with 32K RAM. The Model B featured higher-resolution graphics due to the higher RAM. Both models used the same circuit board, therefore making it possible to upgrade a Model A to a Model B. The machine&#8217;s high cost was compensated for by its impressive expansion possibilities including disc drives, a second processor and network capabilities (Econet). The \u2018Beeb\u2019 came with a version of the BASIC programming language called BBC BASIC. It was created mainly by Sophie Wilson for the BBC Micro. \u2018Beeb\u2019 was operated by Acron\u2019s MOS(Machine Operating System) operating system. The BBC Micro is housed in a case which includes an internal power supply and a 64-key keyboard with 10 additional user-definable keys. On the back of the case there are ports for UHF out, video out, RGB, RS-423, cassette, analogue in and Econet. The BBC Model B was sold for \u00a3399 on the high street in 1983 which was relatively expensive compared with other available machines like the Commodore 64 which sold for around \u00a3229. Despite the higher price, with the publicity given by the BBC, the beeb was a commercial success. The BBC Micro was sold over 1.5 million units in UK, and was widely used in schools, with the large majority of schools having one.<\/p>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_column_text el_class=&#8221;museum_video&#8221;]<iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/r9oAAcRk2Ys\" width=\"600\" height=\"400\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_separator color=&#8221;white&#8221;][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;1084&#8243; img_size=&#8221;full&#8221; onclick=&#8221;link_image&#8221; el_class=&#8221;museum_item&#8221;][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_column_text css=&#8221;.vc_custom_1618823924339{border-top-width: 0px !important;border-right-width: 0px !important;border-bottom-width: 0px !important;border-left-width: 0px !important;padding-top: 5px !important;padding-right: 5px !important;padding-bottom: 5px !important;padding-left: 5px !important;background-color: #000000 !important;}&#8221;] Model : Model 5160 &#8211; PC XT Developer: Acorn Computers Manufacturer: British Broadcasting Corporation (BBC) Released in: December 1, 1981 Operating System: Acorn MOS Specifications CPU: 2 MHz MOS &hellip; <a href=\"https:\/\/emuseum.ucsc.cmb.ac.lk\/?page_id=1082\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;BBC Microcomputer Model B (1981)&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":1084,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"categories":[186,54],"tags":[],"_links":{"self":[{"href":"https:\/\/emuseum.ucsc.cmb.ac.lk\/index.php?rest_route=\/wp\/v2\/pages\/1082"}],"collection":[{"href":"https:\/\/emuseum.ucsc.cmb.ac.lk\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/emuseum.ucsc.cmb.ac.lk\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/emuseum.ucsc.cmb.ac.lk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/emuseum.ucsc.cmb.ac.lk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1082"}],"version-history":[{"count":8,"href":"https:\/\/emuseum.ucsc.cmb.ac.lk\/index.php?rest_route=\/wp\/v2\/pages\/1082\/revisions"}],"predecessor-version":[{"id":2203,"href":"https:\/\/emuseum.ucsc.cmb.ac.lk\/index.php?rest_route=\/wp\/v2\/pages\/1082\/revisions\/2203"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/emuseum.ucsc.cmb.ac.lk\/index.php?rest_route=\/wp\/v2\/media\/1084"}],"wp:attachment":[{"href":"https:\/\/emuseum.ucsc.cmb.ac.lk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1082"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/emuseum.ucsc.cmb.ac.lk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1082"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/emuseum.ucsc.cmb.ac.lk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1082"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}