Any computer that uses a 64 bit word length for memory and/or registers. It can be any specific machine architecture: Intel x86, PowerPC, Arm, Cray supercomputers, DEC VAX, DEC Alpha, IBM Z-series, etc. The important thing is that it process data in 64 bit words.
The main advantage of a 64 bit operating system is that it can make use of all the features and performance of a modern 64 bit microprocessor. If you run a 32 bit operating system on a modern 64 bit microprocessor the operating system will not be able to make use of any 64 bit features of the microprocessor and the performance will not be what the microprocessor is capable of.However a 64 bit operating system WILL NOT run at all on a 32 bit microprocessor (or one with a smaller word size) as the microprocessor does not implement the 64 bit features needed for the operating system to work.Note: in the not too distant future microprocessor manufacturers will release 128 bit microprocessors, which will require 128 bit operating systems to use all the features and performance of these microprocessors.
the program may crash after few minutes of use
64 bit. the size of accumulator will always equal to the size of processor. e.g 32 bit processor has 32 bit accumulator.-------------------------------------------------------------------------------------------------------------------------------------------Actually on some computers the accumulator(s) are larger than the processor word size. Some examples are:IBM 704, IBM 709, IBM 7090, IBM 7094 - these are 36 bit processors with a 38 bit accumulatorIBM 7030 - this is a 64 bit processor with a 128 bit accumulatorSome computers do not have accumulator(s), these fall into three main groups:Variable word length machines that store all data in main memoryGeneral purpose register machinesStack machines that either have a fixed sized internal stack or a variable sized stack stored in main memory
The Snapdragon 712 is a mid-range 64-bit ARM LTE system.
Flynn's Classification is in terms of Instruction and Data Stream but Feng's Classification is in terms of bit parallelismand word parallelism
Itanium
x86-64 is 64 bit processing on 32-bit architecture,not to be confused with true 64 bit-processors like Itaniumhttp://en.wikipedia.org/wiki/X86-64
Both Windows and Unix based operating systems will continue to evolve with hardware. Currently, 64-bit architecture is becoming more common and will slowly replace 32-bit architecture. Given time, 128-bit architecture will likely replace 64-bit, and so on.
The AMD Athlon 64 3000+ is a 64-bit processor. It supports 64-bit computing and can run both 64-bit and 32-bit operating systems and applications. This makes it suitable for modern software that takes advantage of 64-bit architecture while still being compatible with older 32-bit applications.
A server that has both a 64-bit CPU and a 64-bit data bus is better able to process and manage the large database files associated with Windows SharePoint Services 3.0.
64-bit refers to a processor with registers that store 64-bit numbers. A generalization would be to suggest that 64-bit architecture would double the amount of data a CPU can process per clock cycle. Users would note a performance increase because a 64-bit CPU can handle more memory and larger files. One of the most attractive features of 64-bit processors is the amount of memory the system can support. 64-bit architecture will allow systems to address up to 1 terabyte (1000GB) of memory
A "64" in an AMD processor designation typically indicates that the processor is based on a 64-bit architecture, which allows it to handle more memory and perform better with certain applications compared to 32-bit processors. This architecture enables the CPU to process larger data sets and run more efficiently in 64-bit operating systems. It is commonly associated with AMD's Athlon 64 and Opteron series, which were among the first to support 64-bit computing.
The storage capacity of a register is determined by the architecture. Thus they are 32 bits long on a 32-bit system and 64 bits long on a 64-bit system.
a thunking layer
A computer architecture is how the processor processes the information. most new computers are 32 bit (I186) or 64 bit (X64).
It is a processor that works with 64 bit values instead of 32 bit values. The advantages are that it is much faster for operations on large 64 bit values for which a 32 bit processor would need multiple operations. This means that a 64 bit processor with the same clock speed can do more work in the same time.
In a 64-bit machine, a word typically refers to the data size that the machine's architecture can process in one operation, which is 64 bits. Since there are 8 bits in a byte, a 64-bit word consists of 64 bits / 8 bits per byte = 8 bytes. Thus, there are 8 bytes in one word of a 64-bit machine.