[dba-Tech] A few hardware/memory questions

 > "Most of us just go buy a wireless modem of our own choice to place 
"behind"
 > the cable modem."
 > Be
 > "Most of us just go buy a wireless ROUTER of our own choice to place
 > "behind" the cable modem."?

Uhhhh.... Yup.  8-(

And just an FYI they have new wireless ROUTERS now with a new technology 
which places several DIRECTIONAL antennas on the router, then scans the 
antennas to determine which will best support the data being received / 
transmitted at that instant.  IOW, which antenna is pointed towards the 
computer currently sending / receiving data.

This is the one I bought but there are others:

http://www.newegg.com/Product/Product.aspx?Item=N82E16833150015&Tpk=wpn824

They really do work at least as well as the non-directional routers and 
in most cases give 3-9 db better signal strength which is a LOT.

John W. Colby
www.ColbyConsulting.com


Bobby Heid wrote:
> John,
> 
> Shouldn't
> 
> "Most of us just go buy a wireless modem of our own choice to place "behind"
> the cable modem." 
> Be
> "Most of us just go buy a wireless ROUTER of our own choice to place
> "behind" the cable modem."?
> 
> The Linksys BEFCMU10 cable modem/router is one such combo.
> http://www.amazon.com/Linksys-BEFCMU10-Ethernet-Cable-Modem/dp/B00005T6GZ
> http://shop1.frys.com/product/3196790;jsessionid=MwIVMaeqlVkJ-2ONVbeWhw**.no
> de1?site=sr:SEARCH:MAIN_RSLT_PG
> 
> I do not know anything about this modem.
> 
> Bobby
> 
> -----Original Message-----
> From: dba-tech-bounces at databaseadvisors.com
> [mailto:dba-tech-bounces at databaseadvisors.com] On Behalf Of jwcolby
> Sent: Saturday, May 17, 2008 10:04 PM
> To: Discussion of Hardware and Software issues
> Subject: Re: [dba-Tech] A few hardware/memory questions
> 
>  > 1.) I'm going to upgrade my pc -- was going to go all the way to 2 
> gigs until the recent conversation about Windows XP not being able to 
> use more than 1.2, so my question is, why pay for 2 if the system's only 
> going to use 1.5?
> 
> Uhhh... I think there has been a failure to communicate... (one of my 
> favorite movie lines).
> 
> Windows XP x32 can use up to 4 gigabytes of RAM.  Windows XP x64 can use 
> ... unknown but way more than you can fit in your machine.
> 
> The x32 4 gig limitation comes from the fact that using a 32 bit address 
> register you can only physically access 2^32 addresses which equals 4 
> gigs.  NOW, having said that, any memory that is on perepheral devices 
> such as (for example) 128 or 256 megs on a video card have to be 
> "mapped" into that same 4 gigs of ram space, so what happens is that 
> Windows carves "holes" in that 4 gigs and "maps" the video memory into 
> that hole, so that you end up with 4 gigs of memory MINUS the "mapped" 
> memory from your video card.  USUALLY you will end up with something 
> between 3.25 and 3.6 gigs of RAM if you install 4 gigs of memory in a 
> windows x32 machine.
> 
> What happens if you install less than 4 gigs (only 2 gigs)?  Windows no 
> longer has to carve the holes out to map the memory of the video card so 
> you end with with ALL of that 2 gigs available as memory.
> 
>  > 2.) Is there a modem/wireless router combo? I'm using cable Internet. 
> If I have to buy both, seems like someone would be making a single unit 
> that does both by now.
> 
> I don't know but the cable company provides whatever they provide.  They 
> usually do not give (or at least offer) you a choice.  Most of us just 
> go buy a wireless modem of our own choice to place "behind" the cable modem.
> 
> John W. Colby
> www.ColbyConsulting.com
> 
> 
> Susan Harkins wrote:
>> 1.) I'm going to upgrade my pc -- was going to go all the way to 2 gigs
> until the recent conversation about Windows XP not being able to use more
> than 1.2, so my question is, why pay for 2 if the system's only going to use
> 1.5? 
>> 2.) Is there a modem/wireless router combo? I'm using cable Internet. If I
> have to buy both, seems like someone would be making a single unit that does
> both by now. 
>> Susan H. 
> 
> 
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