මොකද්ද 64bit කියන්නෙ?: Must See

globalist

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Mar 31, 2011
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64bit computer වලට ඉතා විශාල RAM දාරිතාවක් අවශ්ය ඇයි?

64bit computer වල තියෙන එකම අවාසිය වනෙ මෙයයි එනම් 32bit computer වලට වඩා RAM මතකය අවශ්ය වීම..මොකද 64bit වලදි allocate කරන data length එක 32bit වල data length එකට වඩා වැඩි නිසා…



Yakooo boru denna epa!!!!!!!!!!!!!!
Ehema ekak na...

64 bit walata 4GB walata wada ram handle karanna puluwan... nathuwa 64bit una kiyala wadiyen ram ona wenne na
 

globalist

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Mar 31, 2011
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data length? mokakda ban ee? Aiyo danne nathi dewal kiala lanu denna epa...

64 bit kiyanne address space eka 64bit kiana eka....ee kianne 4Gb walata wada wadiyen ram thibbath eka address karanna puluwan... bits 64 tiyana nisa wadeta....

32 bit wala ehema ba mokada 32bit use karala address karanna puluwan 4gb wenakan witarai


64bit wala tiyena eka wasiya 4gb walata wada ram use karanna puluwan...

nathuwa speed wath wena kisima deyak na OK
 

perfectenamy

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Feb 13, 2011
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64bit computer වලට ඉතා විශාල RAM දාරිතාවක් අවශ්ය ඇයි?

64bit computer වල තියෙන එකම අවාසිය වනෙ මෙයයි එනම් 32bit computer වලට වඩා RAM මතකය අවශ්ය වීම..මොකද 64bit වලදි allocate කරන data length එක 32bit වල data length එකට වඩා වැඩි නිසා…



Yakooo boru denna epa!!!!!!!!!!!!!!
Ehema ekak na...

64 bit walata 4GB walata wada ram handle karanna puluwan... nathuwa 64bit una kiyala wadiyen ram ona wenne na


The main disadvantage of 64-bit architectures is that relative to 32-bit architectures, the same data occupies more space in memory (due to swollen pointers and possibly other types and alignment padding). This increases the memory requirements of a given process and can have implications for efficient processor cache utilization. Maintaining a partial 32-bit model is one way to handle this and is in general reasonably effective. For example, the z/OS operating system takes this approach currently, requiring program code to reside in 31-bit address spaces (the high order bit is not used in address calculation on the underlying hardware platform) while data objects can optionally reside in 64-bit regions.
Currently, most proprietary x86 software is compiled into 32-bit code, with less being also compiled into 64-bit code (although the trend is rapidly equalizing[citation needed]), so much does not take advantage of the larger 64-bit address space or wider 64-bit registers and data paths on x86 processors, or the additional registers in 64-bit mode. However, users of most RISC platforms, and users of free or open source operating systems (where the source code is available for recompiling with a 64-bit compiler) have been able to use exclusive 64-bit computing environments for years. Not all such applications require a large address space nor manipulate 64-bit data items, so they wouldn't benefit from the larger address space or wider registers and data paths. The main advantage to 64-bit versions of such applications is the ability to access more registers in the x86-64 architecture.


source wiki


http://en.wikipedia.org/wiki/64-bit

Do your home work and come
 

perfectenamy

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Feb 13, 2011
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64bit wala tiyena eka wasiya 4gb walata wada ram use karanna puluwan... nathuwa speed wath wena kisima deyak na OK[/QUOTE said:
Compleatly read the post befor replying



If a number in memory occupies 8 bytes, or 64 bits, the computer must transmit it in two separate steps when using a 32-bit bus: once for the first 32 bits and once for the second 32 bits. Using a 64-bit bus, the computer can transmit the number in a single step, transferring all 64 bits at once. The wider the bus, the fewer number of steps required and the faster the transfer of data. Most personal computers today use a 64-bit bus.

source
http://blog.teachbook.com.au/index.php/computer-science/1-0-hardware-overview/bus-bits/

http://www.iac.es/sieinvens/siepedia/pmwiki.php?n=Tutorials.32vs64bits

PT_64bit_vs_32bit_large.gif


Do your home work and come
 

globalist

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Mar 31, 2011
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උඹ විකිපීඩියා එකෙන් ද උපුටා ගත්තේ? හරකා...

යකෝ ඒක ඕන කෙනෙක් ට එඩිට් කරන්න පුලුවන්...


උඹ ට කඩ්ඩ බැරි උනා ට කරන්න දෙයක් නෑ...කියවල තේරුම් ගන්න බැහැ කියල පේනවා... හා හා

හරක ගෙ ගොන් ගතිය පේනවා විකිපීඩියා දාන එකෙන් ම

:lol::lol::lol::lol::lol::lol::lol::lol::lol:
 
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