{"id":120,"date":"2022-01-31T15:24:35","date_gmt":"2022-01-31T18:24:35","guid":{"rendered":"http:\/\/www.computer.etc.br\/site\/?page_id=120"},"modified":"2022-01-31T16:26:39","modified_gmt":"2022-01-31T19:26:39","slug":"jupiter-ace","status":"publish","type":"post","link":"http:\/\/www.computer.etc.br\/site\/jupiter-ace\/","title":{"rendered":"1983 Jupiter ACE"},"content":{"rendered":"

The Jupiter ACE looks very similar to the Sinclair\u00a0ZX 81<\/a>. Actually, the designers of this computer,\u00a0Richard Altwasser<\/b>\u00a0and\u00a0Steven Vickers<\/b>, played a major role in creating the Sinclair Spectrum.<\/p>\n

The ACE is very similar to the ZX 81, but has some extra features: it has a user port, and it can generate sound (the ZX 81 can’t). It can also use RAM expansion modules for the ZX 81 smaller than 64KB via a small adapter.<\/p>\n

Its most significant feature is its language: instead of using BASIC like other computers, it uses the\u00a0FORTH<\/b>\u00a0language (as did the\u00a0Hector HRX<\/a>).<\/p>\n

FORTH’s advantages are that it’s comprehensible, small, interactive, fast and extensible. It centers around writing procedures which operate on objects on a FIFO stack, and is not as intuitive as BASIC. FORTH was three to ten times faster than BASIC but was not as easy to learn.<\/p>\n

This computer did not achieve significant success, probably due to its relatively obscure language – as far as the general public was concerned.<\/p>\n

Steve Vickers wrote the ZX Spectrum manual – he has been an academic researcher working most recently (2003) at Imperial College London, and the Open University.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
NAME\u00a0\u00a0<\/b><\/td>\nJupiter Ace<\/td>\n<\/tr>\n
MANUFACTURER\u00a0\u00a0<\/b><\/td>\nJupiter Cantab<\/td>\n<\/tr>\n
TYPE\u00a0\u00a0<\/b><\/td>\nHome Computer<\/td>\n<\/tr>\n
ORIGIN\u00a0\u00a0<\/b><\/td>\nUnited Kingdom<\/td>\n<\/tr>\n
YEAR\u00a0\u00a0<\/b><\/td>\n1983<\/td>\n<\/tr>\n
BUILT\u00a0IN\u00a0LANGUAGE\u00a0\u00a0<\/b><\/td>\nForth<\/td>\n<\/tr>\n
KEYBOARD\u00a0\u00a0<\/b><\/td>\nQWERTY, chicklet keyboard, 40 keys, auto-repeat<\/td>\n<\/tr>\n
CPU\u00a0\u00a0<\/b><\/td>\nZilog Z80A<\/td>\n<\/tr>\n
SPEED\u00a0\u00a0<\/b><\/td>\n3.25 MHz<\/td>\n<\/tr>\n
RAM\u00a0\u00a0<\/b><\/td>\n3 kb (up to 51 kb)<\/td>\n<\/tr>\n
ROM\u00a0\u00a0<\/b><\/td>\n8 kb<\/td>\n<\/tr>\n
TEXT\u00a0MODES\u00a0\u00a0<\/b><\/td>\n32 columns x 24 lines<\/td>\n<\/tr>\n
GRAPHIC\u00a0MODES\u00a0\u00a0<\/b><\/td>\n64 x 48<\/td>\n<\/tr>\n
COLORS\u00a0\u00a0<\/b><\/td>\nMonochrome<\/td>\n<\/tr>\n
SOUND\u00a0\u00a0<\/b><\/td>\nInternal beeper<\/td>\n<\/tr>\n
SIZE\u00a0\/\u00a0WEIGHT\u00a0\u00a0<\/b><\/td>\n21.8(W) x 19.2(D) x 3.2(H) cm. \/ 246 g<\/td>\n<\/tr>\n
I\/O\u00a0PORTS\u00a0\u00a0<\/b><\/td>\nUHF TV out (channel 36), User Port, Tape interface (1500 baud), Z80 Bus<\/td>\n<\/tr>\n
POWER\u00a0SUPPLY\u00a0\u00a0<\/b><\/td>\nExternal PSU<\/td>\n<\/tr>\n
PERIPHERALS\u00a0\u00a0<\/b><\/td>\nRAM expansion<\/td>\n<\/tr>\n
PRICE\u00a0\u00a0<\/b><\/td>\n\u00a389.95 (UK, september 1982)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

The Jupiter ACE looks very similar to the Sinclair\u00a0ZX 81. Actually, the designers of this computer,\u00a0Richard Altwasser\u00a0and\u00a0Steven Vickers, played a major role in creating the Sinclair Spectrum. The ACE is very similar to the ZX 81, but has some extra features: it has a user port, and it can generate sound (the ZX 81 can’t). […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[27],"tags":[],"class_list":["post-120","post","type-post","status-publish","format-standard","hentry","category-80s-computers"],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/www.computer.etc.br\/site\/wp-json\/wp\/v2\/posts\/120","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.computer.etc.br\/site\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.computer.etc.br\/site\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.computer.etc.br\/site\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.computer.etc.br\/site\/wp-json\/wp\/v2\/comments?post=120"}],"version-history":[{"count":2,"href":"http:\/\/www.computer.etc.br\/site\/wp-json\/wp\/v2\/posts\/120\/revisions"}],"predecessor-version":[{"id":221,"href":"http:\/\/www.computer.etc.br\/site\/wp-json\/wp\/v2\/posts\/120\/revisions\/221"}],"wp:attachment":[{"href":"http:\/\/www.computer.etc.br\/site\/wp-json\/wp\/v2\/media?parent=120"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.computer.etc.br\/site\/wp-json\/wp\/v2\/categories?post=120"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.computer.etc.br\/site\/wp-json\/wp\/v2\/tags?post=120"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}