ROM RAM ??!!
Ung Ruey Loon
over it's rom and ram.
I know my rom isn't full, but how to write to it ? is it used for the OS
processing only?
if that is the case then what I should be concerned with the my RAM only
right ? but having more RAM will not increase system performance with stuff
like cache storing etc. ?
the 8mb and 6mb thingy is confusing me. I mean all together I'll have 14 MB
right ? so after the space needed for system files, I should have the rest
all to myself and my files ?
I have quite a good understanding of conventional PC memory operation, but
this seems quite different, is there a seperation of primary and secondary
storage in the Psion ? I dun think there is a big difference between the
access speed of the ROM and RAM, so what kind of memory management methos
EPOC uses ? tables, pages.... the usual way ? Does it have any internal
cache memory ?
Justin
Ram is readable and writable momory..
There is no way to write to rom or modify it
You can only have ram to use for everything.. like cache, your own files, other
programs (other than the built in ones in rom), and some space for running of the OS
and program you openned..
you can simply add memory by adding compact flash cards..which is quite cheap in
singapore also.. email me if you want to know exactly where to get them..
Ung Ruey Loon (ungr...@comp.nus.edu.sg) wrote:
: I've been using my series 5 for about 2 months and suddenly I'm confused
--
Best Regards
Justin
Frank Boers
<ungr...@comp.nus.edu.sg> wrote:
>I've been using my series 5 for about 2 months and suddenly I'm confused
>over it's rom and ram.
>
>I have quite a good understanding of conventional PC memory operation, but
>this seems quite different,
There is not much to understand here. It is really simple: the ROM
contains the default applications. You can't delete them to create
more memory. You can't add applications to the ROM.
But, you can add applications to RAM memory. The RAM is also used
to *run* the programs in. If you add applications (or files, or
whatever) to the RAM, you effectively decrease the amount of memory
that can be used to run your programs in, therefore you can't run as
much programs at the same time.
Example: you have 8 Mb RAM. You add a few applications, say for a
total of 5 Mb. You now have 3 Mb left to run your applications in.
That is quite sufficient for normal use.
I hope this helped.
Frank
Volker Hetzer
>
> I've been using my series 5 for about 2 months and suddenly I'm confused
> over it's rom and ram.
>
> processing only?
The ROM contains the OS and psions apps.
>
> if that is the case then what I should be concerned with the my RAM only
> right ? but having more RAM will not increase system performance with stuff
> like cache storing etc. ?
There is no cache.
>
> the 8mb and 6mb thingy is confusing me. I mean all together I'll have 14 MB
> right ? so after the space needed for system files, I should have the rest
> all to myself and my files ?
Your psion 's got 8MB of ram. In there you put your data and all the programs
you install. Once that is used up, you have to buy a compact flash card to
put your application files there. However, for execution they will be loaded
into RAM, just like usual. There is no virtual memory.
Greetings!
Volker
--
Hi! I'm a signature virus! Copy me into your signature file to help me spread!
Luap Notnuats
news:381960B6...@abg1.siemens.de...
> Ung Ruey Loon wrote:
> >
> > I've been using my series 5 for about 2 months and suddenly I'm confused
> > over it's rom and ram.
> >
> > I know my rom isn't full, but how to write to it ? is it used for the OS
> > processing only?
> It's ROM. That means, you can't write to it "R"ead "O"nly "M"emory).
> The ROM contains the OS and psions apps.
So how do Psion do ROM upgrades then? Replace the ROM chip? Seems a bit
twattish.
--
Luap
Richard Ryerson
board, so it can be replaced.
--
Regards
Richard
My Psion Programs
http://www.attcanada.net/~rryerson/
Luap Notnuats <Pol.OS...@marzipan.ie> wrote in message
news:7vc8g4$io1$1...@ezekiel.eunet.ie...
> Volker Hetzer <volker...@abg1.siemens.de> wrote in message
> news:381960B6...@abg1.siemens.de...
> > So how do Psion do ROM upgrades then? Replace the ROM chip? Seems a bit
> twattish.
>
> --
> Luap
>
>
>
>
>
>
SiBO
> So how do Psion do ROM upgrades then? Replace the ROM chip?
Yes.
> Seems a bit twattish.
Why?
Howard
SiBO <sp...@hotmail.com> wrote in message news:7vcmiv$ilc$2...@lure.pipex.net...
SiBO
> is it not flash upgradeable?
No.
> their modems are.
The 3Fax and Travel modem are not Flash upgradable. Are you sure you're
not confusing Dacom Products?
Volker Hetzer
> So how do Psion do ROM upgrades then?
They don't.