{"id":1380,"date":"2020-08-15T11:50:22","date_gmt":"2020-08-15T11:50:22","guid":{"rendered":"https:\/\/invictadigital.co.uk\/museum\/?page_id=1380"},"modified":"2020-08-15T11:50:22","modified_gmt":"2020-08-15T11:50:22","slug":"sinclair-zx81","status":"publish","type":"page","link":"https:\/\/invictadigital.co.uk\/museum\/st-clarkes-classic-computer-museum\/entrance-hall\/sinclair-hall\/sinclair-zx81\/","title":{"rendered":"Sinclair ZX81"},"content":{"rendered":"\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Manufacturer:<\/strong> Sinclair Research Ltd<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>RAM:<\/strong> 1K Base \/ 16K Expansion Pack<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Model:<\/strong> ZX81<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>CPU:<\/strong> Z80A @ 3.5 MHz<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Build Date:<\/strong> 1981<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Packaging:<\/strong> None<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Notes:<\/strong> Have two units &#8211; both only power up with black screens<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-gallery columns-3 is-cropped wp-block-gallery-1 is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF0002-3-1024x768.jpg\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"768\" src=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF0002-3-1024x768.jpg\" alt=\"\" data-id=\"1381\" data-link=\"https:\/\/invictadigital.co.uk\/museum\/?attachment_id=1381\" class=\"wp-image-1381\" srcset=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF0002-3-1024x768.jpg 1024w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF0002-3-300x225.jpg 300w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF0002-3-768x576.jpg 768w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF0002-3-830x623.jpg 830w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF0002-3-230x173.jpg 230w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF0002-3-350x263.jpg 350w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF0002-3-480x360.jpg 480w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF0002-3.jpg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF0003-1-1024x768.jpg\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"768\" src=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF0003-1-1024x768.jpg\" alt=\"\" data-id=\"1382\" data-link=\"https:\/\/invictadigital.co.uk\/museum\/?attachment_id=1382\" class=\"wp-image-1382\" srcset=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF0003-1-1024x768.jpg 1024w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF0003-1-300x225.jpg 300w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF0003-1-768x576.jpg 768w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF0003-1-830x623.jpg 830w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF0003-1-230x173.jpg 230w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF0003-1-350x263.jpg 350w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF0003-1-480x360.jpg 480w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF0003-1.jpg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-1-1024x768.jpg\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"768\" src=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-1-1024x768.jpg\" alt=\"\" data-id=\"1384\" data-link=\"https:\/\/invictadigital.co.uk\/museum\/?attachment_id=1384\" class=\"wp-image-1384\" srcset=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-1-1024x768.jpg 1024w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-1-300x225.jpg 300w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-1-768x576.jpg 768w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-1-1536x1152.jpg 1536w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-1-2048x1536.jpg 2048w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-1-830x623.jpg 830w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-1-230x173.jpg 230w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-1-350x263.jpg 350w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-1-480x360.jpg 480w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-1024x768.jpg\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"768\" src=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-1024x768.jpg\" alt=\"\" data-id=\"1387\" data-link=\"https:\/\/invictadigital.co.uk\/museum\/?attachment_id=1387\" class=\"wp-image-1387\" srcset=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-1024x768.jpg 1024w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-300x225.jpg 300w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-768x576.jpg 768w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-1536x1152.jpg 1536w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-2048x1536.jpg 2048w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-830x623.jpg 830w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-230x173.jpg 230w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-350x263.jpg 350w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-480x360.jpg 480w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-2-1024x768.jpg\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"768\" src=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-2-1024x768.jpg\" alt=\"\" data-id=\"1386\" data-link=\"https:\/\/invictadigital.co.uk\/museum\/?attachment_id=1386\" class=\"wp-image-1386\" srcset=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-2-1024x768.jpg 1024w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-2-300x225.jpg 300w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-2-768x576.jpg 768w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-2-1536x1152.jpg 1536w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-2-2048x1536.jpg 2048w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-2-830x623.jpg 830w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-2-230x173.jpg 230w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-2-350x263.jpg 350w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1022-2-480x360.jpg 480w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1023-1-1024x768.jpg\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"768\" src=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1023-1-1024x768.jpg\" alt=\"\" data-id=\"1388\" data-link=\"https:\/\/invictadigital.co.uk\/museum\/?attachment_id=1388\" class=\"wp-image-1388\" srcset=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1023-1-1024x768.jpg 1024w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1023-1-300x225.jpg 300w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1023-1-768x576.jpg 768w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1023-1-1536x1152.jpg 1536w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1023-1-2048x1536.jpg 2048w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1023-1-830x623.jpg 830w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1023-1-230x173.jpg 230w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1023-1-350x263.jpg 350w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1023-1-480x360.jpg 480w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-1-1024x768.jpg\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"768\" src=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-1-1024x768.jpg\" alt=\"\" data-id=\"1389\" data-link=\"https:\/\/invictadigital.co.uk\/museum\/?attachment_id=1389\" class=\"wp-image-1389\" srcset=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-1-1024x768.jpg 1024w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-1-300x225.jpg 300w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-1-768x576.jpg 768w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-1-1536x1152.jpg 1536w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-1-2048x1536.jpg 2048w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-1-830x623.jpg 830w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-1-230x173.jpg 230w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-1-350x263.jpg 350w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/DSCF1027-1-480x360.jpg 480w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/zx81_1-1.jpg\"><img decoding=\"async\" loading=\"lazy\" width=\"950\" height=\"711\" src=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/zx81_1-1.jpg\" alt=\"\" data-id=\"1390\" data-full-url=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/zx81_1-1.jpg\" data-link=\"https:\/\/invictadigital.co.uk\/museum\/?attachment_id=1390\" class=\"wp-image-1390\" srcset=\"https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/zx81_1-1.jpg 950w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/zx81_1-1-300x225.jpg 300w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/zx81_1-1-768x575.jpg 768w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/zx81_1-1-830x621.jpg 830w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/zx81_1-1-230x172.jpg 230w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/zx81_1-1-350x262.jpg 350w, https:\/\/invictadigital.co.uk\/museum\/wp-content\/uploads\/2020\/08\/zx81_1-1-480x359.jpg 480w\" sizes=\"(max-width: 950px) 100vw, 950px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<div class=\"wp-block-buttons aligncenter is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link\" href=\"https:\/\/invictadigital.co.uk\/museum\/entrance-hall\/sinclair-hall\/\"><strong>Sinclair Hall<\/strong><\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Manufacturer: Sinclair Research Ltd RAM: 1K Base \/ 16K Expansion Pack Model: ZX81 CPU: Z80A @ 3.5 MHz Build Date: 1981 Packaging: [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1358,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-templates\/page_fullwidth.php","meta":{"ngg_post_thumbnail":0,"_themeisle_gutenberg_block_has_review":false},"_links":{"self":[{"href":"https:\/\/invictadigital.co.uk\/museum\/wp-json\/wp\/v2\/pages\/1380"}],"collection":[{"href":"https:\/\/invictadigital.co.uk\/museum\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/invictadigital.co.uk\/museum\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/invictadigital.co.uk\/museum\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/invictadigital.co.uk\/museum\/wp-json\/wp\/v2\/comments?post=1380"}],"version-history":[{"count":1,"href":"https:\/\/invictadigital.co.uk\/museum\/wp-json\/wp\/v2\/pages\/1380\/revisions"}],"predecessor-version":[{"id":1391,"href":"https:\/\/invictadigital.co.uk\/museum\/wp-json\/wp\/v2\/pages\/1380\/revisions\/1391"}],"up":[{"embeddable":true,"href":"https:\/\/invictadigital.co.uk\/museum\/wp-json\/wp\/v2\/pages\/1358"}],"wp:attachment":[{"href":"https:\/\/invictadigital.co.uk\/museum\/wp-json\/wp\/v2\/media?parent=1380"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}