Hello,

I was just wondering what other CPU architectures are available other than INTEL & AMD. So, found List of CPU architectures on Wikipedia.

It categorizes notable CPU architectures into following categories.

1. Embedded CPU architectures
2. Microcomputer CPU architectures
3. Workstation/Server CPU architectures
4. Mini/Mainframe CPU architectures
5. Mixed core CPU architectures

I was analyzing the purposes and have few doubts. I taking Microcomputer CPU (PC) architecture as reference and comparing others.

Embedded CPU architecture:

• They are a completely new world.
• Embedded systems are small & do very specific task mostly real time & low power consuming so we do not need so many & such wide registers available in a microcomputer CPU (typical PC). In other words we do need a new small & tiny architecture. Hence new architecture & new instruction RISC.
• The above point also clarifies why do we need a separate operating system (RTOS).

Workstation/Server CPU architectures

• I don't know what is a workstation. Someone clarify regarding the workstation.
• As of the server. It is dedicated to run a specific software (server software like httpd, mysql etc.). Even if other processes run we need to give server process priority therefore there is a need for new scheduling scheme and thus we need operating system different than general purpose one. If you have any more points for the need of server OS please mention.
• But I don't get why do we need a new CPU Architecture. Why cant Microcomputer CPU architecture do the job. Can someone please clarify?

Mini/Mainframe CPU architectures

• Again I don't know what are these & what miniframes or mainframes used for? I just know they are very big and occupy complete floor. But I never read about some real world problems they are trying to solve. If any one working on one of these. Share your knowledge.
• Can some one clarify its purpose & why is it that microcomputer CPU archicture not suitable for it?
• Is there a new kind of operating system for this too? Why?

Mixed core CPU architectures

• Never heard of these.

If possible please keep your answer in this format:

XYZ CPU architectures

• Purpose of XYZ
• Need for a new architecture. why can't current microcomputer CPU architecture work? They go upto 3GHZ & have upto 8 cores.
• Need for a new Operating System Why do we need a new kind of operating system for this kind of archictures?

Hello,

I was just wondering what other CPU architectures are available other than INTEL & AMD. So, found List of CPU architectures on Wikipedia.

It categorizes notable CPU architectures into following categories.

1. Embedded CPU architectures
2. Microcomputer CPU architectures
3. Workstation/Server CPU architectures
4. Mini/Mainframe CPU architectures
5. Mixed core CPU architectures

I was analyzing the purposes and have few doubts. I taking Microcomputer CPU (PC) architecture as reference and comparing others.

Embedded CPU architecture:

• They are a completely new world.
• Embedded systems are small & do very specific task mostly real time & low power consuming so we do not need so many & such wide registers available in a microcomputer CPU (typical PC). In other words we do need a new small & tiny architecture. Hence new architecture & new instruction RISC.
• The above point also clarifies why do we need a separate operating system (RTOS).

Workstation/Server CPU architectures

• I don't know what is a workstation. Someone clarify regarding the workstation.
• As of the server. It is dedicated to run a specific software (server software like httpd, mysql etc.). Even if other processes run we need to give server process priority therefore there is a need for new scheduling scheme and thus we need operating system different than general purpose one. If you have any more points for the need of server OS please mention.
• But I don't get why do we need a new CPU Architecture. Why cant Microcomputer CPU architecture do the job. Can someone please clarify?

Mini/Mainframe CPU architectures

• Again I don't know what are these & what miniframes or mainframes used for? I just know they are very big and occupy complete floor. But I never read about some real world problems they are trying to solve. If any one working on one of these. Share your knowledge.
• Can some one clarify its purpose & why is it that microcomputer CPU archicture not suitable for it?
• Is there a new kind of operating system for this too? Why?

Mixed core CPU architectures

• Never heard of these.

If possible please keep your answer in this format:

XYZ CPU architectures

• Purpose of XYZ
• Need for a new architecture. why can't current microcomputer CPU architecture work? They go upto 3GHZ & have upto 8 cores.
• Need for a new Operating System Why do we need a new kind of operating system for this kind of archictures?