Each and every job is instructed and done by microprocessor. French Fries. Instruction Set. The plural of microprocessor is microprocessors. The microprocessor is an 8-bit microprocessor. A microprocessor runs and internal program called an operating system. For hardware functions such as input and output and memory allocation, the operating system acts as an intermediary between programs and the computer hardware. The data bus.
The communication between input and output device is called interfacing. The microprocessor is a piece of hardware, not software. Windows 7 doesn't supply a microprocessor. Log in. Computer History. Electronics Engineering. Study now. See Answer. Best Answer. This served two functions: it avoided the limits of the number of transistors that could be put on a single microchip with the technology available then providing greater design flexibility e.
You do not see this anymore, all microprocessors now are single microchip integrated circuits. Study guides. What are the parts of a computer 4 cards. What is a CPU. What is a GPU. What is RAM. What is storage. Q: Why microprocessor is called microprocessor why not mini-processor?
Write your answer Related questions. Post New Answer. In all the generators, the excitation supply is DC. What is the significance of DC excitation? What will happen if AC supply is given as excitation supply? Is it required to lay 2 runs of GI wires along with armoured cables from one power DB Machines of higher rating?
Answers were Sorted based on User's Feedback why microprocessors are named as , etc? Is This Answer Correct? More Electrical Engineering Interview Questions. It doesn't care if a CPU is implemented bit serial or full parallel or anything inbetween. It doesn't rely on how wide an external bus is either. An ISA can be implemented in a wide variety, and that has been used all over since the early days of computer families. And not at least the vs.
Implementation differentiates two chips in usage not more than using the same at variations of clock speed. Last but not least it should be noted that all the bitness arguments are a thing of the past.
And even back then not all that meaningful. It was made important during a phase of maturing, when going from barely usable architectures and implementations thereof toward today's all around capable ones.
So trying to make sense from today's point of view does not always produce a valid result. Not really. It is generally defined by the size of data it natively operates over, so the size of its registers. The definition is slightly fuzzy though as some CPUs have a range of register sizes for different features, and of course there is marketing involved as others have mentioned. To give a few examples which should clarify the "it is generally the registers that count", certainly for Intel CPUs and related implementations:.
Non-Intel chips follow very similar conventions. For instance most 8-bit CPUs like the family had bit address busses so they could address 64Kb of memory.
It can be a bit confused, and it can get even more complicated when you start moving away from general purpose CPUs to start looking at more specialised processors, but hopefully this makes it a little clearer to you. Sign up to join this community. The best answers are voted up and rise to the top.
Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Ask Question. Asked 2 years, 3 months ago. Active 3 months ago. Viewed 11k times. Improve this question. Raffzahn k 17 17 gold badges silver badges bronze badges. Wikipedia: All internal registers, as well as internal and external data buses, are 16 bits wide, which firmly established the "bit microprocessor" identity of the The has 16 address pins but it's not a bit cpu.
The Atari had 12 address pins but it's not a bit cpu. Do you have reference that the address bus width is what decides the bitness of the processor?
Show 6 more comments. Active Oldest Votes. Improve this answer. Greg Hewgill Greg Hewgill 4, 1 1 gold badge 21 21 silver badges 24 24 bronze badges. IMO it is more accurate to refer to the actual register size than the data bus size.
Then exceptions to the "data bus" definition, such as the , don't occur. RichF: While that is true, there are also exceptions there. That's why I said "usual or common size". That's 4B 4G systems - seems reasonable RichF Register size can be misleading. For example, the registers of the are 32 bits wide but the internal data paths, the database and the ALU are only 16 bits.
The is a 16 bit implementation of a 32 bit architecture. Even cheap mobile phones usually have 8GB of memory. So Greg's claim is probably false just from mobile phones alone, and definitely false overall. Show 25 more comments. One would be hard-pressed to find an "8-bit" processor with an external 8-bit address bus. In my computing experience I have always regarded the virtual address size as being the major determinant of "bit size", as a consequence of being concerned more with "how large can my code be?
And maybe some bit systems? And yes, a large motivation for the move from 32 to bit computing was larger address-space to work with more data. But below 16 bits, systems still usually wanted bit address spaces even if everything else was narrower to save transistors. So addressing memory had to be supported with special architectural features, not like the C model.
It was used in the Tandy CoCo series and the Dragon clones of it. Add a comment. Stephen Kitt Stephen Kitt You are certainly right that the bit-ness of a processor is all about marketing. It is whatever number that is 1 high enough so it looks at least as good if not better than competitors' processors, but 2 low enough that you can later sell a "better" one.
Marketing is indeed a good explanation for bitness of a CPU. For all the categories you listed one can find CPU's that fail the criteria. Sometimes it is the system they are built in that will effectively define the bitness. Yet despite those marketing materials is still widely considered a bit CPU. Based on my understanding, the bitness of a CPU specify
0コメント