Difference between vista 32 bit and 64bit
Vista 32 bit vs Vista 64 bit:
Microsoft delivers Windows Vista in both 32-bit and 64-bit flavors. While a system configuration with a x64 processor certainly recommends one of the 64-bit editions of Windows Vista, these versions of the operating system do come with downsides that customers need to be aware of. Being essentially identical to 32-bit Windows Vista, the 64-bit editions will deliver support for 32-bit applications without any problems. However, to understand these two versions well, one should know the differences between Vista 32 bit and Vista 64 bit. This article aims at clarifying doubts on differences between vista 32 bit and 64bit
What is Vista 32 bit?
The terms 32-bit refer to the way a computer’s processor (also called a CPU), handles information. The 32-bit version of Windows vista is designed for use in computers with 32-bit processor. Until recently, almost all consumer PCs used 32-bit processors. The bit size of a processor refers to the size of the address space it can reference. A 32-bit processor can reference 2^32 bytes, or 4 GB of memory. These 32-bit processors were standard at a time when 4 GB was thought to be more than enough memory space for software applications on Windows. When a process, such as running a program, is created on an x86 Windows computer with a 32-bit processor, the operating system allocates its 4 GB of virtual memory, irrespective of the actual physical memory installed on a system. Half of that allocated memory is user-accessible memory, while the other half is for kernel processes such as drivers. Modern computing systems increasingly confront the 4 GB ceiling thanks to memory-intensive applications and the need to store multiple processes in memory simultaneously. 32 Bit works with more software, which is 32 bit related… Most software is designed for 32 bit. The ‘data buss’ is used to move the data around inside your computer. In a 32-bit computer, the width (or size) of the data buss is 32-bits wide.
What is vista 64 bit?
Windows Vista 64 bit is the latest operating system that comes under Vista. And with almost all CPU processor and motherboard nowadays is x64 based. However, 64-bit Vista does not offer support for 16-bit applications or components. Old solutions designed for platforms that proceeded 32-bit will not function on x64 Vista. 64-bit Windows Vista also features an additional line of defence against buffer overflow attacks. Vista’s Data Execution Prevention (DEP) will work in conjunction with the 64-bit processor to prevent exploits, but one major shortcoming is the fact that legitimate applications and processes will be stopped if the operating system detects a buffer overflow condition. A 64-bit computer can process information twice as much as a 32-bit computer, and can have significantly more random access memory (RAM). This makes a 64-bit computer a good choice if you’re working with video, large database searches, or games and other programs that require complex calculations and a lot of memory. To use a 64-bit version of Windows Vista, you must have a computer that has a 64-bit processor. Also, you must have 64-bit device drivers for the devices that are in the computer. Kernel Patch Protection feature is available in 64-bit versions of Windows Vista. Kernel Patch Protection helps prevent a malicious program from updating the Windows Vista kernel. This feature works by helping to prevent a kernel-mode driver from extending or replacing other kernel services. Also, this feature helps prevent third-party programs from updating (patching) any part of the kernel.
What is he difference between Vista 64 bit and 32 bit?
The terms 32-bit and 64-bit refer to the way a computer’s processor (also called a CPU), handles information. The 64-bit version of Windows handles large amounts of random access memory (RAM) more effectively than a 32-bit system. 64 bit can run more than 4GB of ram. 32 can only run 4 gb, but the real difference is, 64 bit sends 64bits of data to the processor at once instead of 32. 32 vs 64 bit has more to do with the hardware than the software. In the case of Windows Vista, the 64-bit edition will run only on 64-bit hardware, whereas the 32-bit version will work on either. Most of the differences between 32 and 64 bit hardware lay in addressing. Computers use binary for everything. Each 1 or 0 is called a bit. The maximum 32 bit number is 32 1s in a row, which converts (in decimal) to 4,294,967,295. The way memory addressing works is that each Byte of RAM has a unique address. One Byte is equal to 8 bits. Foregoing the math here that means that the maximum addressable amount of memory you can have is 4GB. Not all the address space is used for addressing RAM, so the usable amount of RAM is probably more like 3.5GB. The x64 version of Windows Vista introduces Kernel Patch Protection. Patch Guard is a technology designed to prevent access to the core of the operating system. All applications – including legitimate programs such as security solutions – that needed to access the operating system’s kernel in order to function will fail under 64-bit Vista.
Another problem that users will face on 64-bit Vista is the generalized lack of driver support. Drivers in x64 Vista are a completely different deal than on 32-bit Windows platforms. And although 64-bit Vista supports 32-bit applications it does not do the same with 32-bit drivers. The products have to be prepared for 64-bit Vista, as the operating system brings to the table a feature called Signed Kernel Mode Drivers. 64-bit kernel-mode drivers will not be installed in Windows Vista without digital signatures. Also automatic registry and system file redirection specific to the 32-bit operating systems have not made it into 64-bit Vista. 32-bit versions of Windows Vista support 16-bit programs, in part. 64-bit versions of Windows Vista do not support 16-bit programs. 32-bit versions of Windows Vista support 32-bit drivers that are designed for Windows Vista but 64 bit Vista does not. Unsigned drivers may be used with 32-bit versions of Windows Vista. 64-bit versions of Windows Vista require that all device drivers be digitally signed by the developer. 32-bit versions of Windows Vista use a software-based version of DEP. 64-bit versions of Windows Vista support hardware-backed DEP.