After fast ethernet they started just reffering to them by their speeds, e.g. "gigabit ehernet" "10 gigabit ethernet" "40 gigabit ethernet" "100 gigabit ethernet".
I always also thought 650megs for a CD was unusually large at the time.
That is because CDs were first and foremost a digital audio format and were later adapted for computer use. Cd quality uncompressed (afaict affordable high ratio audio compression didn't exist back then) audio takes about 10 megabytes per minute (note that audio CDs have less error checking than standard data CDs and hence a slightly higher capacity)
Bullshit they don't plan to freeze until june 2012.
The hurd port isn't in wheezy yet and has a long way to go before it gets to the point that the release team will let it in. Maybe they will manage that before wheezy freezes, maybe not.
Debian Wheezy will be the name of the next Debian release. Said release will definitely have ports based on linux, most likely have ports based on the freebsd kernel and possiblly have a port based on hurd.
In the 1980s, ethernet tended to be over Thinnet or Thicknet. I seem to recall speeds of 1-3Mbps over those technologies.
Thinnet and thicknet were both 10 megabit.
The big advantage of 10 base T was not speed, it was the fact that the cheap cable made it feasable to star wire it. That lead to higher reliability and the ability to use switches to increase the effective bandwidth by only sending data where it needed to be sent.
The particualr technology changed - just like Ethernet technology's changes.
The great thing about ethernet is that while the technology has changed there is a high degree of compatibility between equipment of different ages. You can take an old peice of test gear with an AUI port, plug a twisted pair transciver into it and hook it up to a network built out of current kit with no problems. Devices with BNC ports need a media converter or a hub with a BNC port which is trickier to find but still not too bad.
In europe and north america the cables come accross the sea and then land at a small number of places.While in africa, the middle east and other underdeveloped areas they tend to follow the coast with loads of landings. It would appear that in these areas undersea cables are being used as a substitute for land based infrastructure because countries don't trust their neighbours.
They can't really do anything about SD at this point. There are a LOT of SDTVs out there without any DRM supporting inputs, far too many to get away with breaking them all and in any case DVD has no provision for forced firmware updates and no provision for requiring that players turn off or degrade non-drm outputs.
HD is a different ball game..While current blu-ray players often have unencrypted HD output they have a plan for removing that capability first by banning new players from supporting it and then by banning new media from being played though those outputs in HD on existing players.
1: The hardware in the sip adaptor or phone is of sufficiently good quality 2: The network is free of packet loss and provides low jitter (late can be as bad as never when it comes to VOIP).
Condition 1 can be met by a sufficiently good hardware qualification process when the hardware is purchased but for condition 2 unless you spend serious money (more than just getting a PSTN line) on dedicated connections you are essentially at the mercy of your ISP.
The thing is you can't realistically go doing no-knock raids on every node in a significant botnet and without a huge level of network monitoring across the globe it's virtually impossible to figure out where a message was initially injected into the network.
So it would appear to me that taking down a competently designed (communication by broadcast messages signed using public key crypto) botnet would be practically impossible.
The thing is with NAT they don't need much thinking about because a NAT box looks like a router with a fixed configuration to it's clients and looks like an end device to the ISP. Therefore no special protocols are needed to make everything work automagically (beyond configuring login details etc if the WAN side is PPP).
However the powers that be have decided (rightly or wrongly) that NAT is evil and not an option for v6 deployment. In the absense of NAT the task of a home router gets quite a lot more complex since it must receive a somewhat dynamic* block of IPs from the ISP and supply those IPs to it's clients. A more complex firewall administration system is also needed (the default policy of the firewall will presumably be outgoing connections allowed, incoming connections denied to match the behaviour of existing NAT boxes)
* exactly how dynamic is likely to vary from weeks to years.
I'm sure some form of v4 service will be maintained for a long time to come. However due to IP shortages some users will not get public v4 IPs, instead their v4 service will will go through a NAT controlled by the ISP. Since the user doesn't control this NAT they will not be able to accept incoming v4 connections. Depending on how the ISP implements that NAT they may or may not be able to use NAT traversal techniques (or they may be able to use them but not reliably). These NATS may well be overloaded in terms of either public IP space or in terms of processing hardware making v4 service in general unreliable.
So while we don't need to immediately replace everything that doens't support ipv6 it is prudent to make sure it is supported in new kit going forwards. The problem is that most critical work as to how IPv6 is to be deployed in the home environment has yet to be done or is still in it's infancy. In theory we could deploy it in the same way we do v4 with NAT in the home router but there are many who would like to see NAT die alongside IPv4 (whether it actually will or not remains to be seen).
Equipment vendors use phono connectors for a few reasons
1: they are cheap 2: they are what everyone else uses 3: they can be packed tightly on a panel
No they aren't controlled impedance like BNC, no they aren't as overengineered as XLR or quarter inch jack but none of these things matter for AV gear that is either on a shelf in a home or installed in a DJs flight case. The fact they are unbalanced is less than ideal but I don't think there is much hope of converting consumer AV over to the more expensive balances line any time soon.
Cable manufacturers sell cables with connectors to fit the equipment. Otherwise the cables wouldn't be much use.
P.S. WTF are you doing to damage a decent quality phono connector with reasonably thick cable in "routine handling"? The only damage i've seen to phono connectors is bending of the outer contacts and damage to the cable where it leaves the back of the connector. The former i've only ever seen happen with the cheap connectors that have a four piece outer contact (presumably they do this so they can get away with crappier tolerances and still have it fit) and the later i've only seen happen with cheap thin cables.
1: long runs are often made up of multiple parts for practical reasons. For example the source may connect to a wall plate which connects to another wall plate which connects to your projector. Even if the individual cables are all compliant the combination of three cables and two wall plates may not be. 2: just because a cable has a mark on it doesn't mean that mark is valid. Unless you have expensive test gear your only indication as to the likelihood of the marks being valid is the manufacturers reputation. 3: unless you have expensive test gear you have no way of knowing if your sources and sinks are out of spec, just about in spec or in spec with room to spare. 4: I have seen a claim that the testing requirements for HDMI cables are somewhat lax with regards certifying a cable at one length and then letting manufacturers make cables of other lengths without recertification. http://www.bluejeanscable.com/articles/certified-hdmi-cables.htm
I HAVE had problems with VGA signal quality into HDTVs but i'm pretty sure it was down to lousy receive circuitry in the TV and/or lousy cables, not any fundamental problem with VGA.
Having said that I've also had problems with digital hookups to HDTVs. Some HDTVs seem to be able to take a digital signal at their supposed native resoloution and blur it such that using a computer with them is highly unpleasant.
If all you are doing is watching TV then quality is far less noticeable because TV content doesn't tend to contain important lines that are only a handful of pixels wide in the first place.
Picture quality with Netflix from the computer is better than from the dvd player with composite video connection.
Well yeah. In general HDMI/DVI (digital) is better than component/VGA (analogue with separate lines for each colour component and support for progressive scan and HD) which are better than RGB scart (analogue with separate lines for each colour component but no support for progressive scan or HD) which is better than S-video (analogue with luminance and chrominance signals) which is better than composite (everything combined into one analogue signal).
Exactly how much the difference is in a particular case will depend heavily on the quality of implementation.
or it does not work properly and its NOT a valid HDMI product.
How do you know that though? If things don't work in a simple configuration (source-cable-sink) then presumably something is out of spec (assuming the spec itself was reasonably designed and you bought the right cable) but you have no real evidence whether that something is the source, the cable or the sink.
Add wall plates etc into the mix and things get even more complex. There is no way to make a spec that guarantees propagation for an arbitrary number of cables and couplers!
Its very possible that the salesperson thought that that same issue persisted to this day even in HDMI-- ignorance, not malice.
We don't know for sure whether any particular instance of a low level grunt giving out misinformation is innocent ignorance, cultivated ignorance (that is managers deliberately hiring the ignorant because they sell more) or outright malice..
What we do know is that these overpriced extras (cables, extended warranties, wall brackets etc) are sold at FAR higher markups than the big ticket items. So it's in the stores interest to sell as many of them as possible and to hire salesmen that can sell the highest priced version of each that they can get away with even if that means not being entirely honest.
China only has "90%" of the world's production because they were able to undersell and close suppliers outside China. As China restricts exports, the price climbs and the suppliers outside China resume business.
The problem is shutting down and resuming supply takes time and costs money. So unless there are huge stockpiles kept somewhere then export restrictions by the main producer of a commodity will lead to shortages.
And if the main producer wants to be really evil they can restrict exports for a while then as soon as other sources start up they can resume exports and crash the market. Repeat the cycle a few times and they can make it very difficult for anyone outside their country to have a reliable and economic supply thus handing a huge advantage to manufacturing in their own country..
If I generate parameterized SQL, how will I know the type and number of ?s in advance in order to do $stmt->bind_param('iss', $var1, $var2, $var3)? And if you say I should build three things (the statement, type string, and list of variables passed by reference) in parallel and then use call_user_func_array(), a mistake in keeping all three of those in the same order is no less likely than a mistake in $conn->escape_string($value). Or did you mean "switch from MySQLi to something else"?
Personally I use PHP data objects (mainly because I want the option to switch database engine) to access mysql. PHP data objects allows parameters to be bound by name and one by one so there is no need to use call_user_func and no need to worry if the order of binding is the same as the order in the query string.
There are two ways to implement this search in SQL. One is to include two separate parameters in the query for each field (e.g. "name", "ignore name", "town", "ignore town"). The other is to generate a WHERE expression and make sure to escape it properly. The first way is good when all fields are known up front; the second way is probably needed when the list of fields will expand in the future.
Another option is to generatea parameterized where clause. That way you get the flexibility to easily change the field list (from an allowed list of fields of course) while at the same time avoiding issues due to escaping mistakes (forgetting to escape, using the wrong escaping function* etc).
* The existence of things like mysql_real_escape_string vs mysql_escape_string in php shows how this sort of thing can be fucked up.
Now you can get a version of the engine for nothing
Alien swaem has been free for a while and if you own any ATI or nvidia card you've been able to get half life 2 deathmatch and half life 2 lost cost free (the nvidia version of the offer also includes a demo of portal and another game i've never heard of) too though this isn't widely advertised (I found the page below while reading up on half life modding). There was also a free portal offer a while back.
but these freebies and other promotional offers did not include the SDK, to get that you have to actually buy a game.
Now you can get a version of the engine for nothing (TF2) the SDK is free too.
If you read TFA this was prompted by someone asking if a purchase from the mann co store (which according to the previous/. article is how you get an uncrippled copy of TF2 now a crippled copy is free) would enable the SDK. It would appear that while they answered yes to his question they also decided to make it free for everyone (though they haven't actually done so yet).
If a new law makes it not financially worthwhile for a business to do X (in this case have affiliates in California) because doing X means they are liable to pay far more taxes then you shouldn't be surprised when the buisness stops doing X.
The real fix would be for the federal government to come up with a fair* system for taxing interstate sales and then use their powers** to enforce it.
*By which I mean neither placing an undue burden on interstate sellers nor giving them an undue advtage. **The US constitution gives the feds the right to regulate interstate commerce
There is no way they will pass up on a market as large as CA.
AIUI they aren't planning to give up on CA completely they are just planning to supply them entirely from out of state.
Is it worth screwing their affiliates to maintain their unfair advantage over B&M retailers? Does anyone have any actual stats for how much amazon makes out of their affiliates VS how much they make from selling stuff themselves?
TFA is not clear whether it was 92% for the structures that were treated or 92% overall, nor does it say what proportion of structures got treated (it implies that not all of them where).
Also while the article isn't clear it looks from the pictures like the polyurathane foam treatment makes the tents single use which could create logistical complications of it's own (if you want to be able to move at any then you have to have a new set of tents in local storage).
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After fast ethernet they started just reffering to them by their speeds, e.g. "gigabit ehernet" "10 gigabit ethernet" "40 gigabit ethernet" "100 gigabit ethernet".
I always also thought 650megs for a CD was unusually large at the time.
That is because CDs were first and foremost a digital audio format and were later adapted for computer use. Cd quality uncompressed (afaict affordable high ratio audio compression didn't exist back then) audio takes about 10 megabytes per minute (note that audio CDs have less error checking than standard data CDs and hence a slightly higher capacity)
Wheezy is already on feature freeze,
Bullshit they don't plan to freeze until june 2012.
The hurd port isn't in wheezy yet and has a long way to go before it gets to the point that the release team will let it in. Maybe they will manage that before wheezy freezes, maybe not.
Debian Wheezy will be the name of the next Debian release. Said release will definitely have ports based on linux, most likely have ports based on the freebsd kernel and possiblly have a port based on hurd.
In the 1980s, ethernet tended to be over Thinnet or Thicknet. I seem to recall speeds of 1-3Mbps over those technologies.
Thinnet and thicknet were both 10 megabit.
The big advantage of 10 base T was not speed, it was the fact that the cheap cable made it feasable to star wire it. That lead to higher reliability and the ability to use switches to increase the effective bandwidth by only sending data where it needed to be sent.
The particualr technology changed - just like Ethernet technology's changes.
The great thing about ethernet is that while the technology has changed there is a high degree of compatibility between equipment of different ages. You can take an old peice of test gear with an AUI port, plug a twisted pair transciver into it and hook it up to a network built out of current kit with no problems. Devices with BNC ports need a media converter or a hub with a BNC port which is trickier to find but still not too bad.
In europe and north america the cables come accross the sea and then land at a small number of places.While in africa, the middle east and other underdeveloped areas they tend to follow the coast with loads of landings. It would appear that in these areas undersea cables are being used as a substitute for land based infrastructure because countries don't trust their neighbours.
They can't really do anything about SD at this point. There are a LOT of SDTVs out there without any DRM supporting inputs, far too many to get away with breaking them all and in any case DVD has no provision for forced firmware updates and no provision for requiring that players turn off or degrade non-drm outputs.
HD is a different ball game..While current blu-ray players often have unencrypted HD output they have a plan for removing that capability first by banning new players from supporting it and then by banning new media from being played though those outputs in HD on existing players.
(i.e.: select foo from table1 where id in (select id from table2 where criteria='something'))
Haver you tried using a join and if so how well does it work?
e.g. select table1.foo from table1 inner join table2 on table1.id=table2.id where table2.criteria='something''
That is true if the following conditions are met
1: The hardware in the sip adaptor or phone is of sufficiently good quality
2: The network is free of packet loss and provides low jitter (late can be as bad as never when it comes to VOIP).
Condition 1 can be met by a sufficiently good hardware qualification process when the hardware is purchased but for condition 2 unless you spend serious money (more than just getting a PSTN line) on dedicated connections you are essentially at the mercy of your ISP.
The thing is you can't realistically go doing no-knock raids on every node in a significant botnet and without a huge level of network monitoring across the globe it's virtually impossible to figure out where a message was initially injected into the network.
So it would appear to me that taking down a competently designed (communication by broadcast messages signed using public key crypto) botnet would be practically impossible.
The thing is with NAT they don't need much thinking about because a NAT box looks like a router with a fixed configuration to it's clients and looks like an end device to the ISP. Therefore no special protocols are needed to make everything work automagically (beyond configuring login details etc if the WAN side is PPP).
However the powers that be have decided (rightly or wrongly) that NAT is evil and not an option for v6 deployment. In the absense of NAT the task of a home router gets quite a lot more complex since it must receive a somewhat dynamic* block of IPs from the ISP and supply those IPs to it's clients. A more complex firewall administration system is also needed (the default policy of the firewall will presumably be outgoing connections allowed, incoming connections denied to match the behaviour of existing NAT boxes)
* exactly how dynamic is likely to vary from weeks to years.
I'm sure some form of v4 service will be maintained for a long time to come. However due to IP shortages some users will not get public v4 IPs, instead their v4 service will will go through a NAT controlled by the ISP. Since the user doesn't control this NAT they will not be able to accept incoming v4 connections. Depending on how the ISP implements that NAT they may or may not be able to use NAT traversal techniques (or they may be able to use them but not reliably). These NATS may well be overloaded in terms of either public IP space or in terms of processing hardware making v4 service in general unreliable.
So while we don't need to immediately replace everything that doens't support ipv6 it is prudent to make sure it is supported in new kit going forwards. The problem is that most critical work as to how IPv6 is to be deployed in the home environment has yet to be done or is still in it's infancy. In theory we could deploy it in the same way we do v4 with NAT in the home router but there are many who would like to see NAT die alongside IPv4 (whether it actually will or not remains to be seen).
Equipment vendors use phono connectors for a few reasons
1: they are cheap
2: they are what everyone else uses
3: they can be packed tightly on a panel
No they aren't controlled impedance like BNC, no they aren't as overengineered as XLR or quarter inch jack but none of these things matter for AV gear that is either on a shelf in a home or installed in a DJs flight case. The fact they are unbalanced is less than ideal but I don't think there is much hope of converting consumer AV over to the more expensive balances line any time soon.
Cable manufacturers sell cables with connectors to fit the equipment. Otherwise the cables wouldn't be much use.
P.S. WTF are you doing to damage a decent quality phono connector with reasonably thick cable in "routine handling"? The only damage i've seen to phono connectors is bending of the outer contacts and damage to the cable where it leaves the back of the connector. The former i've only ever seen happen with the cheap connectors that have a four piece outer contact (presumably they do this so they can get away with crappier tolerances and still have it fit) and the later i've only seen happen with cheap thin cables.
There are several issues I see with your claim
1: long runs are often made up of multiple parts for practical reasons. For example the source may connect to a wall plate which connects to another wall plate which connects to your projector. Even if the individual cables are all compliant the combination of three cables and two wall plates may not be.
2: just because a cable has a mark on it doesn't mean that mark is valid. Unless you have expensive test gear your only indication as to the likelihood of the marks being valid is the manufacturers reputation.
3: unless you have expensive test gear you have no way of knowing if your sources and sinks are out of spec, just about in spec or in spec with room to spare.
4: I have seen a claim that the testing requirements for HDMI cables are somewhat lax with regards certifying a cable at one length and then letting manufacturers make cables of other lengths without recertification. http://www.bluejeanscable.com/articles/certified-hdmi-cables.htm
Never had that problem.
I HAVE had problems with VGA signal quality into HDTVs but i'm pretty sure it was down to lousy receive circuitry in the TV and/or lousy cables, not any fundamental problem with VGA.
Having said that I've also had problems with digital hookups to HDTVs. Some HDTVs seem to be able to take a digital signal at their supposed native resoloution and blur it such that using a computer with them is highly unpleasant.
If all you are doing is watching TV then quality is far less noticeable because TV content doesn't tend to contain important lines that are only a handful of pixels wide in the first place.
Picture quality with Netflix from the computer is better than from the dvd player with composite video connection.
Well yeah. In general HDMI/DVI (digital) is better than component/VGA (analogue with separate lines for each colour component and support for progressive scan and HD) which are better than RGB scart (analogue with separate lines for each colour component but no support for progressive scan or HD) which is better than S-video (analogue with luminance and chrominance signals) which is better than composite (everything combined into one analogue signal).
Exactly how much the difference is in a particular case will depend heavily on the quality of implementation.
or it does not work properly and its NOT a valid HDMI product.
How do you know that though? If things don't work in a simple configuration (source-cable-sink) then presumably something is out of spec (assuming the spec itself was reasonably designed and you bought the right cable) but you have no real evidence whether that something is the source, the cable or the sink.
Add wall plates etc into the mix and things get even more complex. There is no way to make a spec that guarantees propagation for an arbitrary number of cables and couplers!
Its very possible that the salesperson thought that that same issue persisted to this day even in HDMI-- ignorance, not malice.
We don't know for sure whether any particular instance of a low level grunt giving out misinformation is innocent ignorance, cultivated ignorance (that is managers deliberately hiring the ignorant because they sell more) or outright malice..
What we do know is that these overpriced extras (cables, extended warranties, wall brackets etc) are sold at FAR higher markups than the big ticket items. So it's in the stores interest to sell as many of them as possible and to hire salesmen that can sell the highest priced version of each that they can get away with even if that means not being entirely honest.
China only has "90%" of the world's production because they were able to undersell and close suppliers outside China. As China restricts exports, the price climbs and the suppliers outside China resume business.
The problem is shutting down and resuming supply takes time and costs money. So unless there are huge stockpiles kept somewhere then export restrictions by the main producer of a commodity will lead to shortages.
And if the main producer wants to be really evil they can restrict exports for a while then as soon as other sources start up they can resume exports and crash the market. Repeat the cycle a few times and they can make it very difficult for anyone outside their country to have a reliable and economic supply thus handing a huge advantage to manufacturing in their own country..
If I generate parameterized SQL, how will I know the type and number of ?s in advance in order to do $stmt->bind_param('iss', $var1, $var2, $var3)? And if you say I should build three things (the statement, type string, and list of variables passed by reference) in parallel and then use call_user_func_array(), a mistake in keeping all three of those in the same order is no less likely than a mistake in $conn->escape_string($value). Or did you mean "switch from MySQLi to something else"?
Personally I use PHP data objects (mainly because I want the option to switch database engine) to access mysql. PHP data objects allows parameters to be bound by name and one by one so there is no need to use call_user_func and no need to worry if the order of binding is the same as the order in the query string.
There are two ways to implement this search in SQL. One is to include two separate parameters in the query for each field (e.g. "name", "ignore name", "town", "ignore town"). The other is to generate a WHERE expression and make sure to escape it properly. The first way is good when all fields are known up front; the second way is probably needed when the list of fields will expand in the future.
Another option is to generatea parameterized where clause. That way you get the flexibility to easily change the field list (from an allowed list of fields of course) while at the same time avoiding issues due to escaping mistakes (forgetting to escape, using the wrong escaping function* etc).
* The existence of things like mysql_real_escape_string vs mysql_escape_string in php shows how this sort of thing can be fucked up.
Now you can get a version of the engine for nothing
Alien swaem has been free for a while and if you own any ATI or nvidia card you've been able to get half life 2 deathmatch and half life 2 lost cost free (the nvidia version of the offer also includes a demo of portal and another game i've never heard of) too though this isn't widely advertised (I found the page below while reading up on half life modding). There was also a free portal offer a while back.
http://developer.valvesoftware.com/wiki/Half-Life_2:_Deathmatch
but these freebies and other promotional offers did not include the SDK, to get that you have to actually buy a game.
Now you can get a version of the engine for nothing (TF2) the SDK is free too.
If you read TFA this was prompted by someone asking if a purchase from the mann co store (which according to the previous /. article is how you get an uncrippled copy of TF2 now a crippled copy is free) would enable the SDK. It would appear that while they answered yes to his question they also decided to make it free for everyone (though they haven't actually done so yet).
If a new law makes it not financially worthwhile for a business to do X (in this case have affiliates in California) because doing X means they are liable to pay far more taxes then you shouldn't be surprised when the buisness stops doing X.
The real fix would be for the federal government to come up with a fair* system for taxing interstate sales and then use their powers** to enforce it.
*By which I mean neither placing an undue burden on interstate sellers nor giving them an undue advtage.
**The US constitution gives the feds the right to regulate interstate commerce
There is no way they will pass up on a market as large as CA.
AIUI they aren't planning to give up on CA completely they are just planning to supply them entirely from out of state.
Is it worth screwing their affiliates to maintain their unfair advantage over B&M retailers? Does anyone have any actual stats for how much amazon makes out of their affiliates VS how much they make from selling stuff themselves?
TFA is not clear whether it was 92% for the structures that were treated or 92% overall, nor does it say what proportion of structures got treated (it implies that not all of them where).
Also while the article isn't clear it looks from the pictures like the polyurathane foam treatment makes the tents single use which could create logistical complications of it's own (if you want to be able to move at any then you have to have a new set of tents in local storage).
What is the point of a bigger image when most of the data you are installing is already obsolete?
Do you have a source for that claim or are you just making wild guesses?