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The A9home is a niche small-form-factor desktop computer running RISC OS Adjust32. It was officially unveiled at the 2005 Wakefield Show,〔(Wakefield 2005 Show Report ), Phil Mellor and Andrew Duffell, published 22 May 2005 (retrieved 20 September 2006)〕 and is the second commercial ARM-based RISC OS computer to run a 32-bit version of RISC OS. When the Iyonix was withdrawn from sale, the A9home remained the only hardware to be manufactured specifically for the marketplace. It is smaller than the Mac mini and housed in cobalt-blue aluminium casing, measuring 168 mm × 103 mm × 53 mm in size.〔(Photo of Mac mini and A9home ), Phil Mellor, published 22 May 2005 (retrieved 20 September 2006)〕 The machine runs on a 400 MHz Samsung ARM9 processor, has 128 MB SDRAM of main memory and 8 MB VRAM and houses an internal harddisc of 40 GB. On the front, it features two USB 1.1 ports, a microphone and a headphones socket. On the rear, it has two USB 1.1 ports, two PS/2 ports, 10/100 BaseT network port, a RS-232 serial port and a power connection socket. Like the Mac mini, it is powered by an external PSU (5 V, 20 W). Furthermore, it has a power/reset switch, a status/health indicator and a drive activity indicator LED. The A9home is not designed to be internally expanded. The A9home can use a program called Aemulor to emulate older 26-bit applications. This was originally developed for Castle's Iyonix PC. In April 2006, Advantage Six Ltd announced that they were focussing on connectivity in the run-up to that year's Wakefield Show. At the show, they demonstrated integrated bluetooth.〔(A9 gets bluetooth ), Andrew Duffell, published 3 April 2006 (retrieved 20 September 2006)〕 Although the A9home has been officially released for purchase by end-users, its custom version of RISC OS 4 remains unfinished. , RISCOS Ltd has closed after failing to release any information in 2012 about when or if the OS will become feature complete. == History and development == In 2004, RISCOS Ltd privately began work on a version of RISC OS that supported 32-bit addressing modes found on later ARM architectures, RISC OS Adjust (Adjust 32), which is compatible with current ARM processors and designed for both embedded and desktop forms. The first, and so far only, machine to make use of the 32-bit version of the OS is the Advantage6 A9home. It was released in May 2006 after a 12 month Beta testing process,〔(A9home on sale from CJE Micros ), drobe.co.uk, 6 May 2006, accessed 2009-07-16〕 although the current build of Adjust 32, namely RISC OS 4.42, is a prerelease and no final version of the OS has yet been released.〔(Chris's Acorns - Advantage Six A9home )〕 It was intended to be the first in a series of machines, with others running Linux. Both 26- and 32-bit builds of new RISC OS 4 releases can now be compiled from the same source code,〔 〕 but will have to be modified to run on each individual machine supported, as the OS has no HAL at present. Instead it has a hardware-abstracted kernel, which allows specific code to be substituted for each platform supported.〔 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「A9home」の詳細全文を読む スポンサード リンク
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