{"id":93,"date":"2022-01-31T11:25:44","date_gmt":"2022-01-31T14:25:44","guid":{"rendered":"http:\/\/www.computer.etc.br\/site\/?page_id=93"},"modified":"2022-01-31T16:22:55","modified_gmt":"2022-01-31T19:22:55","slug":"radio-shack-trs-80-model-ii","status":"publish","type":"post","link":"http:\/\/www.computer.etc.br\/site\/radio-shack-trs-80-model-ii\/","title":{"rendered":"1979 Radio Shack TRS-80 Model II"},"content":{"rendered":"

The TRS-80 model II, is the obscure brother of the TRS-80 family. Many internet pages deal with the models 1,3 and 4 but omit the model 2… This is maybe because the TRS-80 Model 2 was intended to be a business computer for use in offices and labs. Thus it is equiped with a full height Shugart 8” drive with a capacity of 500k which is a lot compared to the 87k offered by the TRS-80 Model 1 system disk.
\nIt is also possible to connect up to 4 floppy disk units, so you could have 2MB disk space online !<\/p>\n

It runs under TRSDOS, but can also achieve CP\/M compatibility.<\/p>\n

Options for the machine included a hard disk controller, an arcnet network card, a graphics card and a 6 MHz 68000 board set with extra memory (up to 512K) so it could run XENIX (Microsoft’s Unix System).<\/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>\nTRS 80 MODEL II<\/td>\n<\/tr>\n
MANUFACTURER\u00a0\u00a0<\/b><\/td>\nTandy Radio Shack<\/td>\n<\/tr>\n
TYPE\u00a0\u00a0<\/b><\/td>\nProfessional Computer<\/td>\n<\/tr>\n
ORIGIN\u00a0\u00a0<\/b><\/td>\nU.S.A.<\/td>\n<\/tr>\n
YEAR\u00a0\u00a0<\/b><\/td>\nMay\u00a01979<\/td>\n<\/tr>\n
BUILT\u00a0IN\u00a0LANGUAGE\u00a0\u00a0<\/b><\/td>\nBasic delivered on disk<\/td>\n<\/tr>\n
KEYBOARD\u00a0\u00a0<\/b><\/td>\nFull-stroke keyboard with separated numeric keypad<\/td>\n<\/tr>\n
CPU\u00a0\u00a0<\/b><\/td>\nZilog Z80 A<\/td>\n<\/tr>\n
SPEED\u00a0\u00a0<\/b><\/td>\n4 MHz<\/td>\n<\/tr>\n
RAM\u00a0\u00a0<\/b><\/td>\n32 \/ 64 KB depending on models<\/td>\n<\/tr>\n
ROM\u00a0\u00a0<\/b><\/td>\nUnkown<\/td>\n<\/tr>\n
TEXT\u00a0MODES\u00a0\u00a0<\/b><\/td>\n40 x 24 \/ 80 x 24<\/td>\n<\/tr>\n
GRAPHIC\u00a0MODES\u00a0\u00a0<\/b><\/td>\nNone, but 32 graphical symbols are available to simulate graphics<\/td>\n<\/tr>\n
COLORS\u00a0\u00a0<\/b><\/td>\nmonochrome built-in monitor<\/td>\n<\/tr>\n
SIZE\u00a0\/\u00a0WEIGHT\u00a0\u00a0<\/b><\/td>\nHeavy !<\/td>\n<\/tr>\n
I\/O\u00a0PORTS\u00a0\u00a0<\/b><\/td>\nCentronics\/Parallel port, 2 x serial\/RS232 ports<\/td>\n<\/tr>\n
BUILT\u00a0IN\u00a0MEDIA\u00a0\u00a0<\/b><\/td>\nOne full height Shugart 8” drive, single sided floppies with a capacity of 500K<\/td>\n<\/tr>\n
OS\u00a0\u00a0<\/b><\/td>\nTRS-DOS<\/td>\n<\/tr>\n
POWER\u00a0SUPPLY\u00a0\u00a0<\/b><\/td>\nBuilt-in PSU<\/td>\n<\/tr>\n
PRICE\u00a0\u00a0<\/b><\/td>\n$3,450 (USA, october 1979)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

The TRS-80 model II, is the obscure brother of the TRS-80 family. Many internet pages deal with the models 1,3 and 4 but omit the model 2… This is maybe because the TRS-80 Model 2 was intended to be a business computer for use in offices and labs. Thus it is equiped with a full […]<\/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":[25],"tags":[],"class_list":["post-93","post","type-post","status-publish","format-standard","hentry","category-70s-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\/93","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=93"}],"version-history":[{"count":2,"href":"http:\/\/www.computer.etc.br\/site\/wp-json\/wp\/v2\/posts\/93\/revisions"}],"predecessor-version":[{"id":179,"href":"http:\/\/www.computer.etc.br\/site\/wp-json\/wp\/v2\/posts\/93\/revisions\/179"}],"wp:attachment":[{"href":"http:\/\/www.computer.etc.br\/site\/wp-json\/wp\/v2\/media?parent=93"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.computer.etc.br\/site\/wp-json\/wp\/v2\/categories?post=93"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.computer.etc.br\/site\/wp-json\/wp\/v2\/tags?post=93"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}