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Fedora Core 2 Status Update
The Fedora Steering Committee proposes to transfer Fedora Core 2 to the Fedora Legacy Project at the point Fedora Core 4 Test 2 is released. This is currently scheduled for March 21, 2005.
没想到FC2才一年就要退休了~~看来夏天又要重装linux~~
The Fedora Steering Committee proposes to transfer Fedora Core 2 to the Fedora Legacy Project at the point Fedora Core 4 Test 2 is released. This is currently scheduled for March 21, 2005.
没想到FC2才一年就要退休了~~看来夏天又要重装linux~~
昨天还想到买个AMD64的电脑~~结果查了一下是废的~~
What is 64-bit computing?
Before I get started, I wanted to take a moment and explain what 64-bit computing is and why it is so significant. As you probably know, computers process instructions in binary format. Each bit is capable of processing one binary instruction (zero or one) per clock cycle. Most of the PCs that are currently on the market have 32-bit processors, meaning that they can process 32 binary instructions per clock cycle.
Since 64-bit systems can process twice as many instructions per second as a comparable 32-bit system, 64-bit systems are definitely faster than their 32-bit counterparts. Perhaps the most significant difference between a 32-bit and a 64-bit system is the amount of memory that they support.
The fact that 32-bit systems only have 32-bits of data to work with means that they can only address up to 4 GB of RAM. A 64-bit system on the other hand could theoretically address up to 16 exabytes of RAM (That’s over 16,000,000 GB of RAM). In reality though, there are few, if any, 64-bit systems that support 16 exabytes of RAM. Building a machine that supports that much memory would be extraordinarily expensive. To counter this cost, many manufacturers impose RAM address space limits that fall somewhere between the 4 GB limit of 32-bit machines and the theoretical 16 exabytes that a 64-bit system should be capable of addressing. Most existing 64-bit systems limit physical RAM to somewhere between 8 GB and 256 TB.
Brien M. Posey
What is 64-bit computing?
Before I get started, I wanted to take a moment and explain what 64-bit computing is and why it is so significant. As you probably know, computers process instructions in binary format. Each bit is capable of processing one binary instruction (zero or one) per clock cycle. Most of the PCs that are currently on the market have 32-bit processors, meaning that they can process 32 binary instructions per clock cycle.
Since 64-bit systems can process twice as many instructions per second as a comparable 32-bit system, 64-bit systems are definitely faster than their 32-bit counterparts. Perhaps the most significant difference between a 32-bit and a 64-bit system is the amount of memory that they support.
The fact that 32-bit systems only have 32-bits of data to work with means that they can only address up to 4 GB of RAM. A 64-bit system on the other hand could theoretically address up to 16 exabytes of RAM (That’s over 16,000,000 GB of RAM). In reality though, there are few, if any, 64-bit systems that support 16 exabytes of RAM. Building a machine that supports that much memory would be extraordinarily expensive. To counter this cost, many manufacturers impose RAM address space limits that fall somewhere between the 4 GB limit of 32-bit machines and the theoretical 16 exabytes that a 64-bit system should be capable of addressing. Most existing 64-bit systems limit physical RAM to somewhere between 8 GB and 256 TB.
Brien M. Posey
NAN_BO_ONE
就是NAN_BO_ONE
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wtf?what do u know, u r still a virgin, how do u know sex is better when it's free最初由 1 发布
"Software is like sex, it's better when it's free"
Linus Torvalds
网上看见的~~呵呵~~应该是说Linux的~~
不过....任何软件都可以是"免费"的把~~
NAN_BO_ONE
就是NAN_BO_ONE
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