Not yet.
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.
It starts with the 4004 chipset (4 bit) and 8008 microprocessor (8 bit). The successor of the 4004 was the 4040, but this architecture was a dead end. The successors of the 8008 were the 8080, 8085, 8086, 8088, 80186, 80286, 80386, 80486, Pentium, etc. including the current multicore microprocessors. IBM chose to base their PC on the 8086 and 8088, then as successive newer microprocessors were developed new versions of the IBM PC used those microprocessors. Intel also produced many specialized microprocessors and microcontrollers including some RISC microprocessors (e.g. i860, i960). Current Apple Macintosh computers also use the latest Intel multicore microprocessors.
Varies from machine to machine:many early machines had address busses only 12 to 18 bits wideearly microprocessors has address busses 10 to 14 bits wide16 bit address busses were common on microprocessors in the early 1980sthe 8086 had a 20 bit address bus and the 68000 a 24 bit address busmost modern computers have 32 bit address busses with high-end ones having as many as 64 bit address busses
never
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
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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.
128 bit for sure
It starts with the 4004 chipset (4 bit) and 8008 microprocessor (8 bit). The successor of the 4004 was the 4040, but this architecture was a dead end. The successors of the 8008 were the 8080, 8085, 8086, 8088, 80186, 80286, 80386, 80486, Pentium, etc. including the current multicore microprocessors. IBM chose to base their PC on the 8086 and 8088, then as successive newer microprocessors were developed new versions of the IBM PC used those microprocessors. Intel also produced many specialized microprocessors and microcontrollers including some RISC microprocessors (e.g. i860, i960). Current Apple Macintosh computers also use the latest Intel multicore microprocessors.
No. Some programmed computers, such as the DEC PDP-11, are minicomputers. Some, such as the IBM Z/800, are mainframes. The distinction is somewhat vague, however, as many large computers are implemented as multiple microprocessors, or multiple bit sliced RISC machines.
Varies from machine to machine:many early machines had address busses only 12 to 18 bits wideearly microprocessors has address busses 10 to 14 bits wide16 bit address busses were common on microprocessors in the early 1980sthe 8086 had a 20 bit address bus and the 68000 a 24 bit address busmost modern computers have 32 bit address busses with high-end ones having as many as 64 bit address busses
R. Chattergy has written: 'Sixteen Bit Microprocessors'
Every single computer of any kind (including game systems, MP3 players, etc.) has some sort of CPU, or processor. To further this discussion, anything that thinks is considered a computer. You are a computer, your brain is the processor.
there are 128 (2 to the power of 7) bit strings of length 7
8 bit microprocessors
no
128