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Processors mainly have two parameters: width of microprocessor and speed. Speed is calculated in Megahertz (MHz).The width of the processor can be expressed in the form of Internal Register, I/O bus and memory address bus. Microprocessor has different types; Intel processor, AMD, Cyrix, NexGen, IDT, Rise Processors.
Intel processor that belongs to the First Generation of Processors is 8088, 8086, 80186, 80188, and 8087. Intel processors 286, 80287 belong to Second Generation of Processors.
Third Generation microprocessor are 386SX, 386SL, 386DX. AMD 486 (5x86), Cyrix/TI. 486, 486SX, 486SX2, 487SX, 486SL, 486SL2, 486DX, 486DX2, 486DX4 belongs to the Fourth Generation of Microprocessor. Other different types of microprocessor are 486Pentium OD, Pentium 60/66, Pentium 75–200, Pentium MMX, Pentium Pro, Pentium II, Pentium II PE, Celeron, Celeron A, Celeron III, Pentium III, Pentium IIIE, Pentium Xeon, Pentium IIIE Xeon, AMD K5, AMD K6, AMD K6-2, AMD K6-3, AMD Athlon, AMD Duron, AMD Athlon 4 (Thunderbird), AMD Athlon 64 and 64 FX,Cyrix 6x8, Cyrix 6x86MX/MII, Cyrix III, NexGen Nx586, IDT Winchip, IDT Winchip2/2A.
Intel processor that belongs to the First Generation of Processors is 8088, 8086, 80186, 80188, and 8087. Intel processors 286, 80287 belong to Second Generation of Processors.
Third Generation microprocessor are 386SX, 386SL, 386DX. AMD 486 (5x86), Cyrix/TI. 486, 486SX, 486SX2, 487SX, 486SL, 486SL2, 486DX, 486DX2, 486DX4 belongs to the Fourth Generation of Microprocessor. Other different types of microprocessor are 486Pentium OD, Pentium 60/66, Pentium 75–200, Pentium MMX, Pentium Pro, Pentium II, Pentium II PE, Celeron, Celeron A, Celeron III, Pentium III, Pentium IIIE, Pentium Xeon, Pentium IIIE Xeon, AMD K5, AMD K6, AMD K6-2, AMD K6-3, AMD Athlon, AMD Duron, AMD Athlon 4 (Thunderbird), AMD Athlon 64 and 64 FX,Cyrix 6x8, Cyrix 6x86MX/MII, Cyrix III, NexGen Nx586, IDT Winchip, IDT Winchip2/2A.
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Types of Microprocessors according to there emergence are
Complex Instruction Set Computer (CISC)
Where most of the work is to perform by Microprocessor itself, the philosophy reduced the Line of Codes or instruction and burden processor to perform most of the task. CISC architecture was first used by Digital Equipment Corporation PDP 11 family of minicomputers.
Reduced Instruction Set Computer (RISC)
Where most of the work is to perform by the software itself, the load on a processor is very low and hence it is called future processors. The RISC architecture was used by Apple Corporation's Macintosh computers, IBM's RISC System/6000 workstations and Sun Microsystems's SPARC.
Very Long Instruction Word (VLIW)
In this architecture a compiler breaks instruction into basic operations to be performed by processor. VLIW is the next step of RISC. In this philosophy complication is moved from the hardware to the software so it reduces the hardware cost.
Superscalar Processors
They are competent of performing more than one instruction in each cycle. In this philosophy concept of cache, parallel processing and floating point were introduced.
Few other are
General Purpose Processor (GPP)
Special Purpose Processor (SPP)
Application-Specific Integrated Circuit (ASIC)
Application-Specific Instruction-set Processor (ASIP)
Digital Signal Processor (DSP)
Complex Instruction Set Computer (CISC)
Where most of the work is to perform by Microprocessor itself, the philosophy reduced the Line of Codes or instruction and burden processor to perform most of the task. CISC architecture was first used by Digital Equipment Corporation PDP 11 family of minicomputers.
Reduced Instruction Set Computer (RISC)
Where most of the work is to perform by the software itself, the load on a processor is very low and hence it is called future processors. The RISC architecture was used by Apple Corporation's Macintosh computers, IBM's RISC System/6000 workstations and Sun Microsystems's SPARC.
Very Long Instruction Word (VLIW)
In this architecture a compiler breaks instruction into basic operations to be performed by processor. VLIW is the next step of RISC. In this philosophy complication is moved from the hardware to the software so it reduces the hardware cost.
Superscalar Processors
They are competent of performing more than one instruction in each cycle. In this philosophy concept of cache, parallel processing and floating point were introduced.
Few other are
General Purpose Processor (GPP)
Special Purpose Processor (SPP)
Application-Specific Integrated Circuit (ASIC)
Application-Specific Instruction-set Processor (ASIP)
Digital Signal Processor (DSP)
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