Processor

The Processor is the main part of the Computer. We celled as  "Brain of the Computer" for processor. Alway we identify Motherboard and Computer by name of the processor.

Intel, AMD, Motorola, Cyrix, are famous Processors Brands.

Processor is very important factor for the speed of computer. We can use "Mhz" to measure the speed of processors and we called "Clock Speed"  for the speed of processors.

Old Processors

Now we can't use this old processors, because we can't run new applications with this old processors. There for we must upgrade our processors to new one, to work with new applications and new operating systems. 

Processor              |               Year               |               Speed

• 4004             |1971                              |740 KHz
• 8086             |1978                              | 10 MHz
• 286               |1982                              | 12 MHz
• 386               |1985                              | 16 MHz
• 486               |1989                              | 26 MHz
• Pentium       |1993                              | 60 MHz
• Pentium II   |1997                              |233 MHz

Following processors are old processors, but it's using today. following processors are introduced after 1998.

• Pentium II 400 MHz Processor

This was introduced on April 1998 and 450 MHz was introduced on August month.

• Pentium III Processor

This was first introduced with 450 MHz speed on 1999 and the this processor was developed to  500 MHz, 533 MHz, 550MHz, 600 MHz, 650 MHz, 700 MHz, 733 MHz, 750 MHz, 800 MHz, 866 MHz, 1 GHz, 1.13 GHz, 1.2 GHz, 1.26 GHz, 1.33 GHz, 1.4 GHz.

• Pentium IV Processor

This was introduced on November 2000 with 1.3 GHz and this was developed to 1.4 GHz, 1.5 GHz,            1.6 GHz, 1.7 GHz, 1.8 GHz, 1.9 GHz, 2 GHz, 2.2 GHz, 2.4 GHz, 2.5 GHz, 2.8GHz, 3 GHz, 3.2 GHz, 3.4GHz

• Pentium Dual-Core

Pentium dual-core (Pentium D) processor is a first Multi Core Processor in the Intel.This was introduced on May 2005 with 1.5 GHz. This processor was developed  and , it's released, but not famous.

New Processors 

• Pentium Dual-Core

This processor speed is more than 3.06 GHz

• Core 2 Duo

This is good more than Pentium Dual-Core in technologically.  First this was introduced in 1.6 GHz speed. but now it was developed to 3.33 GHz

• Core 2 Quad

This processor was introduced after the Core 2 Duo.  This processor is in Core processor category. This is first introduced in 2.13 GHz and now , this processor have 3 GHz speed.

• Intel Core i3

This is a very popular processor among computer users and this is used in lot of computers. This processor is very good for Normal users and we can get good performance to new operating systems and new applications. This processor is mostly using in Laptop Computers.

• Intel Core i5

This Processor is speed more than Intel Core i3 Processor. This is alway speed more than 2.5 Ghz. This is famous as Intel Core i3 Processor.

• Intel Core i7

This is very good for Multimedia Woks, as Computer games, HD Video Editing, Programing and etc. This is a new processor in Intel. Alway this processor is speed more than 2.8 GHz.

Main Parts of Processor

Processor can look in outlook as one Chip, but processor is collection of a chips. Following Part are main chips in Processor.

• Registers

Purpose of  this part is , processing data and store data of temporally own in processor.

• Cache Memory

Alway data receiving from the RAM, but speed of the RAM is not enough for the processor, because cache memory is used for store data for temporary.  Cache memory is store data and process and again data give for RAM. Cache memory is can categorize  as

1. Level 1 Cache
2. Level 2 Cache

• Control Unit

Purpose of this part is, control all the units of compute.

• Arithmetic and logic Unit (ALU)

This units is work with Arithmetic and Logics.

• Floating Point Unit.

This unit is use to slow difficult mathematics. These mathematics parts can't to solve with Arithmetic and Logic Unit.

• Instruction Unit

Arithmetic and Logic Unit , Floating Point Unit and Registers , Units are in this Instruction Unit.

• Input Output Management Unit

Purpose of this part is, Input Data --> Processing Data --> Output Data and Management