Are they really sure this will scale?
on
Wireless Mesh Networks
·
· Score: 2, Insightful
It seems that every node must be "connected", that is every node must "touch" every other node. Is that the way this technology works? I couldn't tell from the article. If so, it doesn't look like this type of network will scale very well. (Much like p2p networks...they work around this problem by limiting the amount of nodes any other node can see). I remember talking about this type of network (and its limitations) in college in a graph theory class.
My Pentium III-M 600-MHz notebook in performance-optimized mode doesn't have the kick to play a DVD
I've played DVDs on Pentium II 300 MHz laptops without difficutly....what's this guys problem?
Worse still, Brookwood said, was when he takes his notebook to the local java joint. "I just want to sit there for a couple of hours"
A couple of hours? Don't you have anything better to do? Go get a job.
whopping" 316 minutes of battery life using a Centrino notebook"
I'll belive it when I see it. The two biggest draws of power in a notebook are the LCD backlight and the hard-drive. "Centrino" doesn't change either of those.
Who is Itanium good for? Who is G4 or Power4 good for? What is X86 good for?
That's like asking what is a saw, hammer and screwdriver good for...they each have an application.
All these architectures have their good points and bad points. I've written sparc and x86 assembler and I can't say that they are better or worse than each other....just different.
At this point the hardware is MOOT. Unless algorithms get significantly better soon, the hardware won't matter. Sure, we'll get mega memory address space with any 64-bit architecture, but what does that get you? More memory address space? Big deal...so you've got big memory space...that won't make NP=P any time soon.
Here is a classic case of a product without a market. What need or problem does this device satisfy? Even the US postal service has decided that it won't work in their applications - limited range, and letter carriers ending up frozen because they aren't walking.
I got to see one at the International Auto show in NYC two years ago, and it drew a small crowd; nothing like the crowd the Hummer and H2 drew.
For a few hundred dollars this thing could supplement a bike purchase for your kid, but for thousands of dollars it better be able to do more than replace a bicycle.
It's been a while, but I think running fdisk with the "/mbr" switch re-writes the master boot record. Might be handy if you want to get rid of anything there.
I should have been more clear. Adaptec's on-board "zero channel" SCSI raid is a true hardware raid solution. I'm not talking about promise and highpoint stuff.
Although NASA's discovery means the universe will go on forever, the same is not true for human life. As the universe expands, all the energy needed to keep the stars and galaxies alight will be used up. What will remain is a universe full of black holes, which after trillions of years will explode to leave nothing but dark energy.
So all life doesn't get squished, but all the energy in the universe is used up. Gee, that's a much better alternative....
Does Xserve have hardware RAID 1 onboard? I looked into this 6 months ago and my sales rep said no.
Even my dirt cheapest 1u rackmount Intel servers have RAID 0/1 on board (not software). For more money i'd expect it in Xserve without having to buy a $3500.00 external drive array.
Lots of people are concentrating on the physical cable and its associated costs to install. What about the switching infrastrucure costs?
A typical voice conversation requires around 64k/s of bandwidth. Now consider what type of switching infrastructure would be required if everyone had 100Mbps fiber at their house. Do you think that Verizon is going to canabalize their T1 buisinesses? At $400/mo. for a local loop, I don't think so.
Recap:
1. Consumer/small business grade high-bandwidth fiber costs alot to install.
2. It requires that the telcos spend mega-bucks to upgrade their switching gear (possibly to photonic switching gear...$cha-ching$)
3. It will canabalize their high-margin T1 business. (No there really isn't a viable competitor to this if you want static IP).
4. And to top it all off, they've got to charge $40-$80/mo, or no consumers will buy it. (Some businesses will, but they are already spedning $800/mo. for T1s.)
Higher costs and lower revenue. Now, explain why Verizon would WANT to do this?
I'm willing to bet some of these capacitors ended up in cheap power supplies. I can't tell you how many ATX power supplies i've replaced in the last couple of years. Almost all of them smell like burning electrolyte when they die.
The old adage applies; you get what you pay for. I've since stopped buying $29.00 power supplies and sub $100.00 motherboards. Now I pretty much only use Intel server and workstation boards (unless i'm building an Athlon machine).
The grass is always greener over the septic tank...
Why does life have to be totally one thing or another? I like my day job, but that doesn't stop me from consulting as a side business. Maybe someday I'll have enough clients to leave my day job permanently.
OK, so now Rambus is going to try to collect royalties from SDRAM manufacturers. Does this mean they will be able to collect royalties from DDR II manufacturers? This ruling might be a good thing. Assuming Rambus can not collect royalties on DDR II; that would be a great reason for memory and chipset manufacturers need to quickly adopt the new technology.
DDR's price/performance ratio is the ONLY reason Rambus prices have come down out of the stratosphere.
It's a bad business practice to accuse your customers of stealing. It's even worse to "blackmail" them into buying your new product.
Microsoft had better realize that there are other alternatives out there. This is the worst economic environment to pressure your customers. ANY additonal economic pressure from MS will only result in lost customers.
Gee, SMS is unreliable? What do you expect? Here in the Northeast, most wireless VOICE service sucks. Verizon seems to be the best of the bunch, but I routinely call people and always get transfered to voice mail. When I get called back the person usually tells me that their phone was on, but it didn't ring.
20 years after cellular service was first started, the network is still crap. Most carriers know this, but don't want to hike up their CAP EX to fix the problem.
SMS won't get better until the wireless networks get better.
is the availability of an empty drive sled inside the box, allowing users or installers to add additional hard drive space.
No redundancy there...just extra space.
But the NAS-2.3 also has a 10/100 Ethernet port, and is capable of acting as a music server to a network of Net-Tune devices.
Don't know about this...will this feature allow me to access the raw files via the network? If so, then I can do a network backup...if not, then i'm still stuck with no RAID 1 and no way to back up my music
Of all the "music server" products i've seen on the market, i've yet to see one that has redundant hard drives. Maybe these things haven't been on the market long enough, but eventually the hard drives in these devices will fail, and when they do, there are going to be some very pissed off consumers out there.
Until recently, audio gear manufacturers never had to worry about the storage media. When you bought the music, you bought a hard copy of that media (cd, record, tape...etc). I understand that these devices still require you to purchase the "hard copy" of the music, but do you want to re-rip 500 CDs just because your hard drive went clunk-clunk?
Xerox Inc. is pleased to announce that as a result of the settlement between Xerox Corporation (Ticker: XRX) and Palm Inc. (Ticker: PALM) all new Xerox copiers will now have handwriting recognition controls.
"We are confident that by eliminating regular buttons, on our copiers, we can enhance shareholder value and produce a better product for our customers" a Xerox spokesperson said.
A Xerox engineer gave a demonstration of the new technology: "Let's say you want 15 copies double-sided. Our old copiers required you to push four buttons "1", "5", "DOUBLE SIDED" and "START". Now all you have to do is write out "15 COPIES - DOUBLE SIDED - START" on the handy hand writing recognition pad....letters on the left, numbers on the right." "Isn't that much easier than pushing buttons?"
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It seems that every node must be "connected", that is every node must "touch" every other node. Is that the way this technology works? I couldn't tell from the article. If so, it doesn't look like this type of network will scale very well. (Much like p2p networks...they work around this problem by limiting the amount of nodes any other node can see). I remember talking about this type of network (and its limitations) in college in a graph theory class.
-ted
-ted
My Pentium III-M 600-MHz notebook in performance-optimized mode doesn't have the kick to play a DVD
I've played DVDs on Pentium II 300 MHz laptops without difficutly....what's this guys problem?
Worse still, Brookwood said, was when he takes his notebook to the local java joint. "I just want to sit there for a couple of hours"
A couple of hours? Don't you have anything better to do? Go get a job.
whopping" 316 minutes of battery life using a Centrino notebook"
I'll belive it when I see it. The two biggest draws of power in a notebook are the LCD backlight and the hard-drive. "Centrino" doesn't change either of those.
Don't believe the hype.
-ted
Moar fastaaaaar!
-ted
Who is Itanium good for? Who is G4 or Power4 good for? What is X86 good for?
That's like asking what is a saw, hammer and screwdriver good for...they each have an application.
All these architectures have their good points and bad points. I've written sparc and x86 assembler and I can't say that they are better or worse than each other....just different.
At this point the hardware is MOOT. Unless algorithms get significantly better soon, the hardware won't matter. Sure, we'll get mega memory address space with any 64-bit architecture, but what does that get you? More memory address space? Big deal...so you've got big memory space...that won't make NP=P any time soon.
-ted
From article:
No! There are no significant bugs in our released software that any significant number of users want fixed.
Then there would be no reason for:
this
or this
or this
or this
or this
So, Bill, let me ask you. Why does every one of your "released" products have an associated service pack?
-ted
NEVER bet their businesses on the performance of 3rd parties.
Ask all the little tiny DSL providers that popped up in the late 90's how it feels to lean on someone else to deliver your product....
Oh wait, they're all out of business.
If you've got an idea, you better bring it to market without someone else's help....or you might not bring it to market at all.
-ted
Here is a classic case of a product without a market. What need or problem does this device satisfy? Even the US postal service has decided that it won't work in their applications - limited range, and letter carriers ending up frozen because they aren't walking.
I got to see one at the International Auto show in NYC two years ago, and it drew a small crowd; nothing like the crowd the Hummer and H2 drew.
For a few hundred dollars this thing could supplement a bike purchase for your kid, but for thousands of dollars it better be able to do more than replace a bicycle.
-ted
It's been a while, but I think running fdisk with the "/mbr" switch re-writes the master boot record. Might be handy if you want to get rid of anything there.
-ted
Just downloaded and installed. Very funny.
The Help->About Opera menu is also borked.
-ted
there will be breakable encryption.
If I had a buck for every law firm that prints out PGP encrypted email on "the shared printer down the hall" i'd be a rich man.
The encryption is only as good as the users.
-ted
I should have been more clear. Adaptec's on-board "zero channel" SCSI raid is a true hardware raid solution. I'm not talking about promise and highpoint stuff.
Details here
-ted
Great, all life won't die in one big crunch. Yay!
Then I read this:
Although NASA's discovery means the universe will go on forever, the same is not true for human life. As the universe expands, all the energy needed to keep the stars and galaxies alight will be used up. What will remain is a universe full of black holes, which after trillions of years will explode to leave nothing but dark energy.
So all life doesn't get squished, but all the energy in the universe is used up. Gee, that's a much better alternative....
-ted
Does Xserve have hardware RAID 1 onboard? I looked into this 6 months ago and my sales rep said no.
Even my dirt cheapest 1u rackmount Intel servers have RAID 0/1 on board (not software). For more money i'd expect it in Xserve without having to buy a $3500.00 external drive array.
Can anyone clarify this for me?
-ted
Lots of people are concentrating on the physical cable and its associated costs to install. What about the switching infrastrucure costs?
A typical voice conversation requires around 64k/s of bandwidth. Now consider what type of switching infrastructure would be required if everyone had 100Mbps fiber at their house. Do you think that Verizon is going to canabalize their T1 buisinesses? At $400/mo. for a local loop, I don't think so.
Recap:
1. Consumer/small business grade high-bandwidth fiber costs alot to install.
2. It requires that the telcos spend mega-bucks to upgrade their switching gear (possibly to photonic switching gear...$cha-ching$)
3. It will canabalize their high-margin T1 business. (No there really isn't a viable competitor to this if you want static IP).
4. And to top it all off, they've got to charge $40-$80/mo, or no consumers will buy it. (Some businesses will, but they are already spedning $800/mo. for T1s.)
Higher costs and lower revenue. Now, explain why Verizon would WANT to do this?
-ted
I'm willing to bet some of these capacitors ended up in cheap power supplies. I can't tell you how many ATX power supplies i've replaced in the last couple of years. Almost all of them smell like burning electrolyte when they die.
The old adage applies; you get what you pay for. I've since stopped buying $29.00 power supplies and sub $100.00 motherboards. Now I pretty much only use Intel server and workstation boards (unless i'm building an Athlon machine).
-ted
AAAACK!
What about my 250 MB colorado backup drive that needs a floppy connector?
-ted
The grass is always greener over the septic tank...
Why does life have to be totally one thing or another? I like my day job, but that doesn't stop me from consulting as a side business. Maybe someday I'll have enough clients to leave my day job permanently.
Whatever you do, do what you love.
-ted
The final ultra-filtration step removes all suspended solids from the liquid including all biological matter, alive or dead.
What do they do with the "suspended solids"?
-ted
OK, so now Rambus is going to try to collect royalties from SDRAM manufacturers. Does this mean they will be able to collect royalties from DDR II manufacturers? This ruling might be a good thing. Assuming Rambus can not collect royalties on DDR II; that would be a great reason for memory and chipset manufacturers need to quickly adopt the new technology.
DDR's price/performance ratio is the ONLY reason Rambus prices have come down out of the stratosphere.
-ted
I have young children and I want to devote more of my time to them.
TRANSLATION: I know those brats are on Kazaa right now.
-ted
It's a bad business practice to accuse your customers of stealing. It's even worse to "blackmail" them into buying your new product.
Microsoft had better realize that there are other alternatives out there. This is the worst economic environment to pressure your customers. ANY additonal economic pressure from MS will only result in lost customers.
-ted
Gee, SMS is unreliable? What do you expect? Here in the Northeast, most wireless VOICE service sucks. Verizon seems to be the best of the bunch, but I routinely call people and always get transfered to voice mail. When I get called back the person usually tells me that their phone was on, but it didn't ring.
20 years after cellular service was first started, the network is still crap. Most carriers know this, but don't want to hike up their CAP EX to fix the problem.
SMS won't get better until the wireless networks get better.
-ted
is the availability of an empty drive sled inside the box, allowing users or installers to add additional hard drive space.
No redundancy there...just extra space.
But the NAS-2.3 also has a 10/100 Ethernet port, and is capable of acting as a music server to a network of Net-Tune devices.
Don't know about this...will this feature allow me to access the raw files via the network? If so, then I can do a network backup...if not, then i'm still stuck with no RAID 1 and no way to back up my music
-ted
Of all the "music server" products i've seen on the market, i've yet to see one that has redundant hard drives. Maybe these things haven't been on the market long enough, but eventually the hard drives in these devices will fail, and when they do, there are going to be some very pissed off consumers out there.
Until recently, audio gear manufacturers never had to worry about the storage media. When you bought the music, you bought a hard copy of that media (cd, record, tape...etc). I understand that these devices still require you to purchase the "hard copy" of the music, but do you want to re-rip 500 CDs just because your hard drive went clunk-clunk?
-ted
XEROX PRESS RELEASE:
Xerox Inc. is pleased to announce that as a result of the settlement between Xerox Corporation (Ticker: XRX) and Palm Inc. (Ticker: PALM) all new Xerox copiers will now have handwriting recognition controls.
"We are confident that by eliminating regular buttons, on our copiers, we can enhance shareholder value and produce a better product for our customers" a Xerox spokesperson said.
A Xerox engineer gave a demonstration of the new technology:
"Let's say you want 15 copies double-sided. Our old copiers required you to push four buttons "1", "5", "DOUBLE SIDED" and "START". Now all you have to do is write out "15 COPIES - DOUBLE SIDED - START" on the handy hand writing recognition pad....letters on the left, numbers on the right." "Isn't that much easier than pushing buttons?"
-ted