| 词条 | Pentagon (computer) |
| 释义 |
| name = Pentagon | title = | aka = Пентагон | logo = | image = Pentagon-1024SL1.jpg | caption = Pentagon-1024SL v1.x | developer = | manufacturer = | family = | type = Home computer | generation = | releasedate = {{Start date and age|1989}} | lifespan = | price = | discontinued = | unitssold = | unitsshipped = | media = | os = Sinclair BASIC, TR-DOS | power = | soc = | cpu = КР1858ВМ1/3, Т34ВМ1, Z80A, B, H @ 3.5 MHz | memory = 48 to 1024 KB | storage = | memory card = | display = | graphics = | sound = | input = | controllers = | camera = | touchpad = | connectivity = | platform = | service = | dimensions = | weight = | topgame = | compatibility= | predecessor = | successor = | related = | website = {{URL|pentagon.nedopc.com}} }} The Pentagon (Пентагон) home computer was a clone of the British-made Sinclair ZX Spectrum 128. It was manufactured by amateurs in the former Soviet Union, following freely distributable documentation. Its PCB was copied all over the ex-USSR in 1991-1996, which made it a widespread ZX Spectrum clone. The name "Pentagon" derives from the shape of the original PCB (Pentagon 48), with a diagonal cut in one of the corners. [1]Many simple devices (upgrades) were invented to connect to the Pentagon with a soldering iron.[2] Versions[1]
The Pentagon 1024SL v2.3 included most of the upgrades of the standard Spectrum architecture, including 1024 KB RAM, Beta 128 Disk Interface and ZX-BUS slots (especially for IDE and General Sound cards). This model also featured a "turbo" mode (7 MHz instead of the original's 3.50 MHz). Upgrades from the original ZX Spectrum
References1. ^1 {{Cite web|url=http://speccy.info/Pentagon|title=Pentagon — SpeccyWiki|website=speccy.info}} 2. ^{{Cite web|url=http://www.worldofspectrum.org/rusfaq/|title=Russian Most Popular Spectrum Models|website=www.worldofspectrum.org}} 3. ^{{Cite web|url=http://pentagon.nedopc.com/info.htm|title=Информация|website=pentagon.nedopc.com}} External links
4 : ZX Spectrum clones|Computer-related introductions in 1989|1989 establishments in the Soviet Union|Soviet computer systems |
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