There's an often-missed angle on public transit: total transit time. has to go up with public transit, including trains, That means you're asking everybody taking them to spend possibly alot more time to go anywhere
Absolutely not true. Yes the minimum total transit time is higher for public transport (rail/bus/etc) compared to private transport (car/truck/etc), but the average and more importantly the peak transit times are much lower with public transport.
When the roads are at >80% capacity you will spend a considerable amount of time stationary or traveling at single digit speeds. When public transport is at >80% capacity you get people standing and the total transit time rises by the extra time to get people on and off, which will be a small or zero increase compared to the total transit time (zero increase when keeping to the timetable requires waiting to leave the stopping point).
No, they specifically broke runas in a command prompt window in vista in favor of the right click -> run as administrator (bing UAC) route.
It was a totally stupid idea. Even going with a runas which then triggered UAC to gain the required privileges would have been a better plan that no runas command.
Maybe a better analogy would be a classroom with a bunch of kids (computers) passing notes (packets) to each other. If a kid passes a note to someone directly beside them (same subnet) then they can just reach over and drop it on their desk. If it needs to go to a kid on the opposite side of the room, they pass the note to their friend who passes it on.
That's quite good.
I would also say:
You are sat at a desk just outside the door which you can open when you "dial-up" to pass notes to the nearest desk inside.
The notes have:
Who they are to.
Who they are from.
Are only allowed 3 words of actual message.
A sequence number to allow you to send a long message by breaking it into 3 word chunks and the re-assembling the it at the other end.
The other end will send you notes back saying "I have up to message 10", but they will write it "ack 10" and they can also send 3 words on that note if they want to.
The problem isn't when 1 computer is using wireless; it's when you have lots in the same area. Now move from using a wireless network in the home or public hotspot to a more business orientated environment, like an office or school (yes I'll put my hands up to working in a school).
You now want to support a full domain login with roaming profiles at 2-3Mb a time, synchronously loaded at login while the computer said "loading network settings" (makes the start of the lesson quite slow).
Now couple that with users who have no idea how big their documents are when they start throwing together pages with only 2 - 3 jpegs per page (word helpfully converts nice small jpegs to monster bmps when you import them, I would guess most of the office suite do the same), and remember these users have no idea how to properly scale and crop their images to take up the least space before they import them (1600x1200 digital photo imported and cropped in word and used at as postage stamp sized image anyone? Word helpfully keeps the entire image in the document in case you ever want it).
So you now have 20 students working in a classroom on wireless laptops in a single 11 area collectively working on 2Gb of document data, stored on a file server (20 users x 100Mb) complaining that the network is slow.
We looked at adopting 11n and decided not to deploy it until they issue the standard. We seriously looked at deploying an 11a AP per classroom, but alas there was no money left (not just the cost of the AP, none of our laptops have 11a, so there you also need an 11a card for each)...
The only PCs which use that are IA-64 Itanic^H^H^H^H^H^H^H Itanium based (sink, you've hit the x86_64 iceburg, now is the time for you to sink); so far only 64 Bit Windows versions support booting in an EFI enviroment, no version works with EFI and a 32 Bit processor.
Even Vista dosn't support EFI on 32Bit, but I would lay odds on it working when it's released, now Apple are offically helping getting Windows booted on their hardware.
I have used an empty removable ide caddie (with all the wiring removed) as a draw for storing jelly beans.
Unfortunately the kilo (~2.2lb for you un-metric types out there) of Jelly Belly jelly beans only lasted until the morning of the third day in the office, so it was a jelly bean draw for only a short time...
[the winxp welcome oobe] tool forces a user... to create a user account that is an administrator with no password
Actually, if you put in "none" as the first and only user it dosn't create any users, and you end up with Administrator on the welcome screen (that disapears once annother user exists, but you can always get back to it with the ctrl-alt-del twice trick).
That is how I add the odd laptop to our domain as I don't want any local users (when for some reason I'm not RISing them), well now I know the ctrl-shift-F3 maybe not...
Presumably it only works on XP Pro as XP Home trys very hard to deny the existance of the Administrator user (until you boot it up in safe mode to password it)
I work in a school and rolled out a thin client system 4 years ago with a scripted RedHat 6.2 install with a customisation rpm thrown in on 2nd hand P100 - P166 machines with 16Mb ram and a 250Mb HDD.
We used citrix metaframe 1.8, so had the offical citrix ICA client for linux. The client was a little quirky - wouldn't go full screen properly so we had a +20 pixel green border around the edges of the 800x600 screen... A later release of the client eventually fixed that.
The customisation rpm setup runlevel 4 to be a full screen session logging on to the metaframe servers.
We now have a nfs root system with very little on the harddisks; the kernel (isa network cards and netbooting was just too much work when we could just install grub and copy an updated kernel from the nfsroot when it changed), a few local settings (symlinked from the nfsroot into/localdisk/...) and a local ICA bitmap cache.
Needless to say the thin clients are now being phased out, the thin clients run office type applications very well, but they don't do all the fancy multimedia interactive elearning stuff that all the teaching staff tell me they can no longer teach without.
There is no excuse for writting code with buffer overflows in. None. You just need to think a little while coding.
On to the thing about cars, anyone else remember "unsafe at any speed"? Most companies will do what ever they think they can get away with. If they think they can spend nothing and deal with the bad press, etc; they will.
What we really need to do is file a patent on a patent office, then charge them for every patent they have ever issued.
Abstract:
Method and framework for allowing the comercial exploitation of an idea or apparatus which may or may not be novel and/or original to the applicant, and is most proberbly just someone elses idea with a few keywords changed for some other suckers ideas.
Seperate read write heads? No, not in the sense you are thinking of. The only reason for a seperate heads is for when you can't use one head for both jobs because one is physically unable to do the others job.
For example think of a readhead able to read the ever shrinking area of a single bit the surface of the platter (bear in mind that tricks are used to work out the real state of a bit, you don't need heads able to read a bit on a stationary platter). Attempting to use that head to write to the disk may well destroy it, you now need annother head to write with.
The two heads are on the same arm, and can't operate at the same time (no point, you know what your writing;), so you get no two head advantage just more cost for the head. The gain of course is increased storage density.
Proberbly using a '.' instead of colons for the IPv6 addresses and a ':' for IPv4 would be a cunning idea.
That does however leave the IPv4 in IPv6 legacy addresses::127.0.0.1, hmm, I don't suppose that a ':' is valid after one of those, so use a '.' after IPv6, and ':' after dotted quad would work.
Well not forever, but proberbly longer than the drive will.
We had some PDP-11 masbus Removable drives (1/4 tonne jobs the size of a washing machine, based on floppy disk technology with a ~40Mb capacity) here, the drives were fscked and just black smoked when pluged in, but we had loads of viable diskpacks left
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Absolutely not true. Yes the minimum total transit time is higher for public transport (rail/bus/etc) compared to private transport (car/truck/etc), but the average and more importantly the peak transit times are much lower with public transport.
When the roads are at >80% capacity you will spend a considerable amount of time stationary or traveling at single digit speeds. When public transport is at >80% capacity you get people standing and the total transit time rises by the extra time to get people on and off, which will be a small or zero increase compared to the total transit time (zero increase when keeping to the timetable requires waiting to leave the stopping point).
No, they specifically broke runas in a command prompt window in vista in favor of the right click -> run as administrator (bing UAC) route.
It was a totally stupid idea. Even going with a runas which then triggered UAC to gain the required privileges would have been a better plan that no runas command.
Bryn
That's quite good.
I would also say:
- You are sat at a desk just outside the door which you can open when you "dial-up" to pass notes to the nearest desk inside.
- The notes have:
- Who they are to.
- Who they are from.
- Are only allowed 3 words of actual message.
- A sequence number to allow you to send a long message by breaking it into 3 word chunks and the re-assembling the it at the other end.
- The other end will send you notes back saying "I have up to message 10", but they will write it "ack 10" and they can also send 3 words on that note if they want to.
- There is no teacher in the class room.
BrynNo, try again in a year ;P
Shareholders don't care what MS does, as long as they (the shareholder) keep making money.
Bryn
The problem isn't when 1 computer is using wireless; it's when you have lots in the same area. Now move from using a wireless network in the home or public hotspot to a more business orientated environment, like an office or school (yes I'll put my hands up to working in a school).
You now want to support a full domain login with roaming profiles at 2-3Mb a time, synchronously loaded at login while the computer said "loading network settings" (makes the start of the lesson quite slow).
Now couple that with users who have no idea how big their documents are when they start throwing together pages with only 2 - 3 jpegs per page (word helpfully converts nice small jpegs to monster bmps when you import them, I would guess most of the office suite do the same), and remember these users have no idea how to properly scale and crop their images to take up the least space before they import them (1600x1200 digital photo imported and cropped in word and used at as postage stamp sized image anyone? Word helpfully keeps the entire image in the document in case you ever want it).
So you now have 20 students working in a classroom on wireless laptops in a single 11 area collectively working on 2Gb of document data, stored on a file server (20 users x 100Mb) complaining that the network is slow.
We looked at adopting 11n and decided not to deploy it until they issue the standard. We seriously looked at deploying an 11a AP per classroom, but alas there was no money left (not just the cost of the AP, none of our laptops have 11a, so there you also need an 11a card for each)...
Bryn
Yes, and no.
They are using standard Intel chipsets, but not the standard 1980s PC BIOS. They are using the Extensible Firmware Interface (EFI) instead.
The only PCs which use that are IA-64 Itanic^H^H^H^H^H^H^H Itanium based (sink, you've hit the x86_64 iceburg, now is the time for you to sink); so far only 64 Bit Windows versions support booting in an EFI enviroment, no version works with EFI and a 32 Bit processor.
Even Vista dosn't support EFI on 32Bit, but I would lay odds on it working when it's released, now Apple are offically helping getting Windows booted on their hardware.
Bryn
I have used an empty removable ide caddie (with all the wiring removed) as a draw for storing jelly beans.
Unfortunately the kilo (~2.2lb for you un-metric types out there) of Jelly Belly jelly beans only lasted until the morning of the third day in the office, so it was a jelly bean draw for only a short time...
Bryn
Actually, if you put in "none" as the first and only user it dosn't create any users, and you end up with Administrator on the welcome screen (that disapears once annother user exists, but you can always get back to it with the ctrl-alt-del twice trick).
That is how I add the odd laptop to our domain as I don't want any local users (when for some reason I'm not RISing them), well now I know the ctrl-shift-F3 maybe not ...
Presumably it only works on XP Pro as XP Home trys very hard to deny the existance of the Administrator user (until you boot it up in safe mode to password it)
Bryn...and don't get rid of it until they're either out of space.
or ?
I was just wondering...
I work in a school and rolled out a thin client system 4 years ago with a scripted RedHat 6.2 install with a customisation rpm thrown in on 2nd hand P100 - P166 machines with 16Mb ram and a 250Mb HDD.
... A later release of the client eventually fixed that.
/localdisk/...) and a local ICA bitmap cache.
We used citrix metaframe 1.8, so had the offical citrix ICA client for linux. The client was a little quirky - wouldn't go full screen properly so we had a +20 pixel green border around the edges of the 800x600 screen
The customisation rpm setup runlevel 4 to be a full screen session logging on to the metaframe servers.
We now have a nfs root system with very little on the harddisks; the kernel (isa network cards and netbooting was just too much work when we could just install grub and copy an updated kernel from the nfsroot when it changed), a few local settings (symlinked from the nfsroot into
Needless to say the thin clients are now being phased out, the thin clients run office type applications very well, but they don't do all the fancy multimedia interactive elearning stuff that all the teaching staff tell me they can no longer teach without.
Bin
--
There is no excuse for writting code with buffer overflows in. None. You just need to think a little while coding.
On to the thing about cars, anyone else remember "unsafe at any speed"? Most companies will do what ever they think they can get away with. If they think they can spend nothing and deal with the bad press, etc; they will.
What we really need to do is file a patent on a patent office, then charge them for every patent they have ever issued.
Abstract:
Hmm, maybe that's not vague enough ....
Bryn--
Or words to that effect
It's only 0.5% according to that website, but still it's a totally stupid pattent.
Anyone in the US managed to pattent bottles yet ?
I suspect this investment gain is not as rosey as this author is claiming it is.
Oh I don't know, the return on a $600m investment won't be a small ammount
Seperate read write heads? No, not in the sense you are thinking of. The only reason for a seperate heads is for when you can't use one head for both jobs because one is physically unable to do the others job.
;), so you get no two head advantage just more cost for the head. The gain of course is increased storage density.
For example think of a readhead able to read the ever shrinking area of a single bit the surface of the platter (bear in mind that tricks are used to work out the real state of a bit, you don't need heads able to read a bit on a stationary platter). Attempting to use that head to write to the disk may well destroy it, you now need annother head to write with.
The two heads are on the same arm, and can't operate at the same time (no point, you know what your writing
Bryn
--
That does however leave the IPv4 in IPv6 legacy addresses ::127.0.0.1, hmm, I don't suppose that a ':' is valid after one of those, so use a '.' after IPv6, and ':' after dotted quad would work.
Anyone know anyone on the IETF?
--
Ok, now lets see. You've shelled out for the DLT drive at ~$2000, and you've got your tapes at $50 a time.
Are you really seriously not then taking at least 2 backups of your data (one in the fire proof safe, one safely off site in a fire proof safe)?
Even if all copys of the tapes are damaged by a duff drive, you can have the data recovered by one of the data recovery outfits around.
Well not forever, but proberbly longer than the drive will.
We had some PDP-11 masbus Removable drives (1/4 tonne jobs the size of a washing machine, based on floppy disk technology with a ~40Mb capacity) here, the drives were fscked and just black smoked when pluged in, but we had loads of viable diskpacks left