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From: asmith@acorn.co.uk (Andy Smith)
Newsgroups: comp.sys.acorn
Subject: Re: ARM specs
Message-ID: <4529@acorn.co.uk>
Date: 20 Dec 90 12:57:04 GMT
References: <1990Dec18.070050.5024@uokmax.ecn.uoknor.edu>
Sender: asmith@acorn.co.uk
Distribution: comp
Organization: Acorn Computers Ltd, Cambridge, England
Lines: 45

In article <1990Dec18.070050.5024@uokmax.ecn.uoknor.edu> cbdougla@uokmax.ecn.uoknor.edu (Collin Broad Douglas) writes:

>
>   I was wondering if anyone had infomation about the ARM chips and the
>Acorn computers.  They sounds really interesting but I've been unable to get
>some really good info (about the OS, hardwar etc.)  I've got a general idea
>of how well the A310 performs (from a friend) but I'd like more information
>such as:
>
>Graphics modes

The Arc has a number of built in graphics modes, but with a little bit of
effort you can design your own. You have the choice of 1, 2, 4 or 8 Bits per
pixel. 4096 colour look up palette (giving upto 256 colours on screen). upto
24Mhz pixel rate, giving very high res mono support.

>sound capabilities                                    

8 channel stereo sound, again provided by VIDC.

>OS capabilities (multitasking, GUI, CLI etc)  

RISCOS is semi-multi tasking from the WIMP desktop. The filers do not multi
task. There is also a CLI, which is single tasking. RISCiX is UNIX.

>
>Are there different versions of the ARM chip?                     

Yes, there are currently 3 different ARM chips, designed by our brilliant
VLSI guys.

ARM 2 - the core of the current Arc range.
ARM 2aS - the core of the ABC.
ARM 3 - the core of the Arc 540, the R225 and R260

Future ARMs will be designed by the newly formed ARM ltd.

>
>Thanks in advance.
>
>

Your welcome,

Andy