Well, try: http://computer.howstuffworks.com/computer-programming-channel.htm Amarjit----- Original Message ----- From: "Chris Hallsworth" <christopherh40@xxxxxxxxxxxxxx>
To: <jfw@xxxxxxxxxxxxx> Sent: Wednesday, November 11, 2009 3:49 PM Subject: RE: 32bit and 64bit
Even I don't understand half of what 64 bit does for me. All I know is that my Windows 7 64 bit installation runs a snap. I have 4GB of RAM so can take advantage of 64 bit. But that's all I know! So I'm proud of you there Joseph<smiles>. -----Original Message----- From: jfw-bounce@xxxxxxxxxxxxx [mailto:jfw-bounce@xxxxxxxxxxxxx] On Behalf Of Joseph Lee Sent: 11 November 2009 10:29 PM To: jfw@xxxxxxxxxxxxx Subject: RE: 32bit and 64bit Hi, Well, memory isn't the only one.As many people have said, 64-bit means that we can use more than 4 GB of RAMon a computer. Currently, the CPU family of today supports up to one terabyte (40-bit) of memory (well, the designers at AMD, the originator of modern 64-bit in the form of X64 thought that 1 TB is sufficient for now). As for security, there is a new feature on the 64-bit called "Execute Disable." This means that a portion of memory that is set to "read-only" cannot be run by a code (sorry, somewhat hard to explain this concept). There are other enhancements besides these two.As for compatibility of 64-bit with JAWS, you cannot run a 32-bit version ofJAWS on a 64-bit computer. This is because the 64-bit computers (more specifically, thye operating system) uses different driver model. So, a 32-bit version of JAWS with a 32-bit drivers on a 64-bit driver model will not take advantage of newer features of 64-bit machines. Nor using 64-bit version of JAWS on a 32-bit model.Well, 64-bit and 32-bit is somewhat hard to explain in plain language. Thisis as so far as I can go. Sorry if some of the materials were hard to understand. Cheers, Joseph P.S. Good thing that I am majoring in computer science instead of computer engineering. From: jfw-bounce@xxxxxxxxxxxxx [mailto:jfw-bounce@xxxxxxxxxxxxx] On Behalf Of Daniel McGee Sent: Wednesday, November 11, 2009 2:21 PM To: jfw@xxxxxxxxxxxxx Subject: 32bit and 64bitHello everyone, I just wanted to know what is the difference between a 32bit computer and a 64bit one? I heard this on the what's new pordcast of jaws 11and I looked on the internet but I didn't understand what it ment. Is itsomething to do with memory or something? A plain simple expermation will begreatful! However I don't mind if some of you want to get a little technical. Just give me the simple basic differences before launching into technical details about the two different numbers! Many Thanks Daniel No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.425 / Virus Database: 270.14.60/2496 - Release Date: 11/11/09 07:40:00 -- JFW related links: JFW homepage: http://www.freedomscientific.com/Scripting mailing list: http://lists.the-jdh.com/listinfo.cgi/scriptography-the-jdh.comJFW List instructions: To post a message to the list, send it to jfw@xxxxxxxxxxxxxTo unsubscribe from this mailing list, send a message to jfw-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line.Archives located at: //www.freelists.org/archives/jfwAlternative archives located at: http://n2.nabble.com/JAWS-for-Windows-f2145279.htmlIf you have any concerns about the list, post received from the list, or the way the list is being run, do not post them to the list. Rather contact the list owner at jfw-admins@xxxxxxxxxxxxxx
-- JFW related links: JFW homepage: http://www.freedomscientific.com/ Scripting mailing list: http://lists.the-jdh.com/listinfo.cgi/scriptography-the-jdh.com JFW List instructions: To post a message to the list, send it to jfw@xxxxxxxxxxxxx To unsubscribe from this mailing list, send a message to jfw-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line. Archives located at: //www.freelists.org/archives/jfw Alternative archives located at: http://n2.nabble.com/JAWS-for-Windows-f2145279.html If you have any concerns about the list, post received from the list, or the way the list is being run, do not post them to the list. Rather contact the list owner at jfw-admins@xxxxxxxxxxxxxx