Processor

A  Processor is a major part of computer it can follow instruction to carry out user request. It is also called the brain of computer.

            The working of control & easily working as known the processor. The original name of micro processor chip.

         Socket Processor

  Slot Process

Computer	Model	Speed	Cache
8086	XT	6-8 MHz
8088	XT	8,10,12 MHz
80286	AT	16 MHz
80386	AT	20 MHz
80386	SX	25, 30 MHz	64 KB
80386	DX	30, 33, 40 MHz	64, 128 KB
80486	SX	33, 40 MHz	64, 128 KB
80486	DX	40 MHz	64, 128 KB
80486	DX2	66 MHz	64, 128 KB
80486	DX4	100 MHZ	64, 128 KB
80486	DX5 "OR" DX4	120 MHz	64, 128 KB

Pentium I Processor

(Cache 128 KB)

(Socket 7)

·         75 MHz

·         90 MHz

·         100 MHz

·         120 MHz

·         133 MHz

·         166 MHz

·         200 MHz

·         233 MHz

Pentium II Processor (MMX)

(Cache 512 KB)

(Socket 370 PGA)

(Slot 440 PPGA)

·         233 MHz

·         266 MHz

·         300 MHz

·         333 MHz

·         350 MHz

·         400 MHz

·         450 MHz

Pentium II Processor (Celeron)

(Cache 128 KB)

·        266 MHz (Slot)

·        300 MHz (Slot)

·        333 MHz (Slot)

·        366 MHz (Socket)

·        400 MHz (Socket)

·        433 MHz (Socket)

·        466 MHz (Socket)

Pentium III Processor (MMX)

(Cache 256 &512 KB)

(Socket 370 PGA)

(Slot 440 PPGA)

·         450 MHz (Slot)

·         500 MHz (Slot)

·         550 MHz (Slot)

·         600 MHz (Slot & Socket)

·         650 MHz (Slot)

·         667 MHz (Slot & Socket)

·         700 MHz (Socket)

·         733 MHz (Socket)

·         800 MHz (Socket)

·         866 MHz (Socket)

·         933 MHz (Socket)

·         1 GHz (Socket)

·         1.1 GHz (Socket)

·         1.12 GHz (Socket)

·         1.13 GHz (Socket)

·         1.2 GHz (Socket)

Pentium III Processor (Celeron)

(Cache 128 & 256 KB)

·         866 MHz

·         900 MHz

·         966 MHz

·         1 GHz

·         1.1 GHz

·         1.12 GHz

·         1.13 GHz

·         1.2 GHz

Pentium IV Processor (MMX)

(Cache 256 KB, 512 KB, 1MB, 2 MB, 4 MB)

(Socket 478 A, 748 B, 423)

·         1.3 GHz

·         1.4 GHz

·         1.5 GHz

·         1.6 GHz

·         1.7 GHz

·         1.8 GHz

·         2.0 GHz

·         2.1 GHz

·         2.2 GHz

·         2.4 GHz

·         2.6 GHz

·         2.7 GHz

·         2.8 GHz

·         3.0 GHz

·         3.2 GHz

·         3.4 GHz

Pentium IV Processor (MMX)

(Cache 256 KB, 512 KB)

·         1.5 GHz

·         1.6 GHz

·         1.7 GHz

·         1.8 GHz

·         2.0 GHz

·         2.4 GHz

3.0 GHz 

RAM

(Random Access Memory)

       The most common type of memory is called random access memory (RAM). As a result, the term memory is typically used to mean RAM. RAM is like an electronic scratch pad inside the computer.RAM holds data and program instructions while the CPU works with them. When a program launched, it is loaded into and run from memory. As the program needs data, it is loaded into memory for fast access. As new data is entered into the computer, it is also stored in memory but only temporarily.

SIMM 30 Pins                                (Use in 8086--------------------------80586 computers)

SIMM 72 Pins                                (Use in 80386--------------------Pentium II computers)

DIMM or SD Ram (168 pins)       (Use in Pentium I---------------Pentium IV computers)

DDR I (184 Pins)                           (Use in Pentium IV computers)

DDR II (240 Pins)                          (Use in Pentium IV computers)

DDR III (200/240 Pins)                 (Use in Pentium IV Advanced computers)

RD (184 Pins)                                (Use in Pentium IV computers)

SIMM

SD or DIMM

RD

DDR-I

DDR-II

DDR-III

SIMM    =  Single inline Memory Module
DIMM    =  Dual inline Memory Module 
RD        =  Rambus Dynamic Random Access Memory
SD        =  Static Dynamic or Standard Dynamic
DDR     =  Double Data Rate or Double Data Raw

CD-ROM 

(Compact Disk-Read Only Memory)

Short for Compact Disc-Read Only Memory, CD-ROM drives or Optical Drives are CD players inside computers that can have speeds in the range from 1x and beyond, and have the capability of playing audio CD's and computer data CD's. Below is a picture of the front and back of a standard CD-ROM drive.

CD-ROM transfer speeds

Below are the standard transfer rates and access times for CD-ROM drives. The below figures are averages you can expect to find on each speed of CD-ROM drive.

Drive speed Transfer rate (BPS) Access time (ms) Single-speed (1x) 153,600 400 Double-speed (2x) 307,200 300 Triple-speed (3x) 460,800 200 Quad-speed (4x) 614,400 150 Six-speed (6x) 921,600 150 Eight-speed (8x) 1,228,800 100 Ten speed (10x) 1,536,000 100 Twelve speed (12x) 1,843,200 100 Sixteen speed (16x) 2,457,600 90 Eighteen speed (18x) 2,764,800 90 Twenty four speed (24x) 3,686,400 90 Thirty two speed (32x) 4,915,200 85 What is X? 1. In general, an x is used to represent any single digit. For example, you may see Computer Hope and other companies list Microsoft Windows 3.x that indicates Windows 3.1 or Windows 3.11, or Microsoft Windows 9x that means either Windows 95 or Windows 98 2. When referring to a computer CD drive, an X refers to the transfer speed. For example, the original 1X CD-ROM had a speed of 153,600 BPS, this means a 24X has a BPS of 3,686,400 or 153,600 x 24. The higher the number, the faster data is going to be read from the CD drive 1.    CD ROM ·         Read Real Audio Data ·         Read MP3 Data ·         Read Video Data ·         Read Software Data 2.   CD Writer ·         Read Real Audio Data ·         Read MP3 Data ·         Read Video Data ·         Read Software Data ·         Write a Data CD ·         Re-Write a Data CD 3.   DVD ROM ·         Read Real Audio Data ·         Read MP3 Data ·         Read Video Data ·         Read Software Data ·         Read DVD Data 4.   Combo Drive ·         Read Real Audio Data ·         Read MP3 Data ·         Read Video Data ·         Read Software Data ·         Read DVD Data ·         Write a Data CD ·         Re-Write a Data CD 5.   Combo Drive ·         Read Real Audio Data ·         Read MP3 Data ·         Read Video Data ·         Read Software Data ·         Read DVD Data ·         Write a Data CD ·         Re-Write a Data CD ·         Write a Data DVD CD ·         Re-Write a Data DVD CD