One thing Gosling neglects to mention is that it costs tens of thousands of dollars to get access to the test suite.
While compatibility is great, a major advantage of open source is the ability for people to make and distribute experimental changes (after all, new features often start out as experiments).
While anyone can get the source code to Sun's VM, there is concern that looking at the code taints you for life, unlike open source.
The typcial keyframe rate in MPEG4 stuff is around 8-10 seconds. In MPEG2 it tends to be around 2-5 ms...
Did you really mean 2-5 milliseconds? Because a single field of video is at least 16 ms, so it's going to take longer than that to find the next I-frame.
Two completely different markets, not a whole lot of overlap. The $1000/computer market would have never bought the "regular" RedHat distro, and vice-versa.
I agree, and I guess they couldn't afford to pursue both strategies so they chose the most profitable one.
Isn't NDS mostly just an LDAP server? We already have LDAP servers. The hard part (as the article says) is making all the parts that we already have just work, especially on the client side and across all the various distributions.
Additive vs. subtractive color
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Beyond Megapixels
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· Score: 2, Informative
There are different ways to produce color; you can start with black and add red, green, (maybe emerald), and blue, or you can start with white and subtract cyan, yellow, magenta (and optionally black). Cameras and monitors use additive color while printers use subtractive color. More info.
There has been some academic work on power management policies for variable-RPM disks, and IIRC Sony built a prototype. So far it hasn't caught on, probably because of cost.
AFAIK 802.16 was originally designed without any consideration for mobility, and then task group e tacked on mobility support as best they could. 802.20 looks like it's being designed for mobility from the beginning, so it aims to be around 2x as efficient as 802.16e.
Why do I keep on thinking that the 802.16a extension to WiMax wireless networking will allocated that 50 MHz allocation in the 3.6 GHz range?
Spectrum isn't allocated to protocols, but you can bet that ISPs will use 802.16 in this new band.
For those who don't know, 802.16a is the standard that allows wireless broadband Internet even if you're in a moving vehicle up to 250 km/h or 155 mph...
Nope. 802.16a is for fixed devices. 802.16e will support low-speed mobility and 802.20 will support high-speed mobility (e.g. moving cars).
And BTW, 802.16a has already been obsoleted by 802.16revD.
Instead of "Broadband Reports reports that RCR Wireless News reports that the FCC said..." let's just see what the FCC said: news release, Powell statement.
I think this new band is intended for outdoor last-mile Internet access, so penetration of buildings is not a concern. If you use 3.6GHz 802.16, 5GHz 802.11a, and a 2.4GHz cordless phone, they won't overlap (although your brain may explode from the alphabet soup).
A Java program is a Java program. It doesn't matter what tools you used to develop it, so don't tell people. As long as your program runs on GCJ and Sun's VM, everybody's happy.
Translation and protection needs to be done for every instruction fetch and every load or store. For performance reasons, that means you need a TLB right next to the data cache and another one right next to the instruction cache. The TLB is most of the MMU.
There are always weird low-performance processors out there, but for all mainstream processors I'm right.
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OTOH, if we forced manufacturers to produce 1080p displays or nothing, we'd likely get nothing.
Sun actually makes millions of dollars from licensing their VM source code to IBM, Apple, HP, BEA, etc.
The open source definition includes "No Discrimination Against Persons or Groups" specifically to head off such misguided ideas.
Besides, Microsoft doesn't need Sun's source code to fork Java. They have enough people to write a VM from scratch. Or they could use Kaffe.
One thing Gosling neglects to mention is that it costs tens of thousands of dollars to get access to the test suite.
While compatibility is great, a major advantage of open source is the ability for people to make and distribute experimental changes (after all, new features often start out as experiments).
While anyone can get the source code to Sun's VM, there is concern that looking at the code taints you for life, unlike open source.
...now that Apple has shown that you can be successful with a non-X UNIX GUI based on Postscript...
Apple hasn't shown that. Quartz is successful, but it doesn't use Postscript. In fact, Quartz is architecturally very different from NeWS.
The typcial keyframe rate in MPEG4 stuff is around 8-10 seconds. In MPEG2 it tends to be around 2-5 ms...
Did you really mean 2-5 milliseconds? Because a single field of video is at least 16 ms, so it's going to take longer than that to find the next I-frame.
Maybe Alan's point is that it's easier to just install Fedora than to install RHEL/Whitebox and then add a bunch of RPMs to get it up to date.
Two completely different markets, not a whole lot of overlap. The $1000/computer market would have never bought the "regular" RedHat distro, and vice-versa.
I agree, and I guess they couldn't afford to pursue both strategies so they chose the most profitable one.
Red Hat lost the customers who were paying $100/computer and gained the $1000/computer customers. So far it's a pretty profitable strategy.
On the contrary. The whole point of the 18-month development cycle for RHEL is that the ISVs can keep up with it.
Isn't NDS mostly just an LDAP server? We already have LDAP servers. The hard part (as the article says) is making all the parts that we already have just work, especially on the client side and across all the various distributions.
There are different ways to produce color; you can start with black and add red, green, (maybe emerald), and blue, or you can start with white and subtract cyan, yellow, magenta (and optionally black). Cameras and monitors use additive color while printers use subtractive color. More info.
Too bad Apple enbraced and extended SIP so that iChat AV doesn't interoperate with real SIP software.
There has been some academic work on power management policies for variable-RPM disks, and IIRC Sony built a prototype. So far it hasn't caught on, probably because of cost.
Does that have something to do with Gmail? If anything, Google seems more honest that other companies about privacy (or lack thereof).
Windows Terminal Server works; why can't this work?
AFAIK 802.16 was originally designed without any consideration for mobility, and then task group e tacked on mobility support as best they could. 802.20 looks like it's being designed for mobility from the beginning, so it aims to be around 2x as efficient as 802.16e.
Why do I keep on thinking that the 802.16a extension to WiMax wireless networking will allocated that 50 MHz allocation in the 3.6 GHz range?
Spectrum isn't allocated to protocols, but you can bet that ISPs will use 802.16 in this new band.
For those who don't know, 802.16a is the standard that allows wireless broadband Internet even if you're in a moving vehicle up to 250 km/h or 155 mph...
Nope. 802.16a is for fixed devices. 802.16e will support low-speed mobility and 802.20 will support high-speed mobility (e.g. moving cars).
And BTW, 802.16a has already been obsoleted by 802.16revD.
Instead of "Broadband Reports reports that RCR Wireless News reports that the FCC said..." let's just see what the FCC said: news release, Powell statement.
I think this new band is intended for outdoor last-mile Internet access, so penetration of buildings is not a concern. If you use 3.6GHz 802.16, 5GHz 802.11a, and a 2.4GHz cordless phone, they won't overlap (although your brain may explode from the alphabet soup).
A Java program is a Java program. It doesn't matter what tools you used to develop it, so don't tell people. As long as your program runs on GCJ and Sun's VM, everybody's happy.
Translation and protection needs to be done for every instruction fetch and every load or store. For performance reasons, that means you need a TLB right next to the data cache and another one right next to the instruction cache. The TLB is most of the MMU.
There are always weird low-performance processors out there, but for all mainstream processors I'm right.
No, a no-execute bit must be implemented in the MMU. Likewise the MMU is always part of the processor.
No, not really. The NX flag is dealt with by the MMU, which is part of the processor.
The IEEE 802.11 standard uses the 2.4GHz and 5GHz bands.