SDRAM is a memory which is synchronized interface. It wait for a clock signal before responding to control inputs and then synchronized with the computer system bus. It has 168 pin, 3.3 volt, 66 MHz speed and 2 notchs points. This RAM is very slow performance that is why it is replaced by the fastest performance RAM.

DDR RAM (Double Data Rate Synchronous Dynamic Random Access Memory) 

Basically DDR RAM are double the rate of data transfer then the S DRAM. Three types of DDR RAM are found in the market

1. DDR1

2. DDR2

3. DDR3

DDR1

RAM (Random Access Memory) is a memory where the data stores temporary. It is using by the system to sore the data for processing by central processing unit. The data which has stored in hard disk drive can not access randomly because of blocked data. The processor random access the selected data with the help of operating system (windows). When the computer shout down the random access data of RAM is automatically lost itself, so this is not permanently storage memory, it is only temporary storage memory.

Price - $ 20,000.

E-Go For Bentley Laptop has the Bentley logo on its handle as well as on the sliding doors which are fashioned for the laptop's various ports. This laptop has white gold frames. This expensive laptop offers users with bespoke luxury and the best of computing power. The E-go for Bentley laptop is powered by mobile AMD Turion processor, 2 GB RAM, 160 GB Hard Drive, 12.1 inch WXVGA Display, Bluetooth, WiFi, audio DJ and Microsoft Vista Ultimate Operating System.

The Tulip E-Go Diamond Laptop is looking like a ladies handbag. This laptop's name E-Go is short form of easy going. It is the magnificent design and inlaid with solid palladium white gold plates. This laptop has changeable handmade leather skin and chrome carrying handle. The E-Go Diamond laptop has mobile AMD  Turion processor, 2 GB RAM, 12.1 inch WXVGA anti reflection display, 160 GB Hard Drive, WiFi, Bluetooth, DVD+RW, Voice Recognition software and Microsoft Vista Ultimate windows.

Luvaglio One Million Dollar Laptop computer is the most expensive laptop in the world. After spending one million dollar for buying this laptop, the owner can choose any material like diamond, white gold or leather for body. We can upgrade the laptop itself anytime as our required. The feature of this laptop is 17 inch wide screen LED display, 128 GB Solid State Drive (SSD) and there is even present a shining of diamond which takes place of the power button of laptop.

 figure-1 (Luvaglio 1 million dollar Laptop)

 figure -2 (Luvaglio 1 million dollar Laptop)

figure-3 (Luvaglio 1 million dollar Laptop)