Asian Model

In two weeks, I am going to go to Australia to visit my boyfriend who works in Brisbane, at Web Design Brisbane. Actually he works here but the company sent him there for one year. I miss him but I am not dead without him. I can’t wait to see Australia. I wanted to go there since I was a little girl but I never had enough money for the plane ticket. I really hope this will be the best vacation ever.

Random access memory  is the generic name for any type of computer memory can be accessed randomly, providing direct access to any location or address them in any order, even at random, usually is implemented on chips (ICs) and electronic speed without moving parts (and not on devices such as magnetic or optical disks or CDs).

Time access to data in such memory is usually always the same, not depending on the position of the memory address accessed (not as bands or magnetic disks, which requires a variable time).

Most implementations of RAM is volatile (stored data is lost if power supply is interrupted), but there are non-volatile RAM, such as Read-Only Memory type (ROM) and flash memories. RAM advantage over other data storage medium is extremely high speed access, being thousands of times higher than for example that of a hard disk. But the price per gigabyte is about 200 times higher.

There are two main types of RAM:

memory state, static RAM (or SRAM)

dynamic memory, Dynamic RAM (DRAM or)

consisting differences in the stability information. Thus, static memory retains data for an unlimited time, until she is rewritten, similar to storing a magnetic medium. In contrast, dynamic memory requires periodic rewriting permanent every few fractions of a second, otherwise the information is lost. SRAM memory advantages: increased utility due to the operation and high speed; disadvantage: price more than DRAM.

SRAM memory type is used most often as buffer / cache. The DRAM is used in modern PCs, primarily as a main memory (“Work”). Common types of DRAM used throughout computer history, all designed to increase DRAM’s performance standard:

Fast Page Mode DRAM (FPM DRAM),

Extended Data Out DRAM (EDO DRAM),

Burst EDO DRAM (Bedo RAM)

Rambus DRAM (RDRAM),

now established itself Synchronous DRAM (SDRAM), with variants

Double Data Rate SDRAM (DDR SDRAM) and

DDR2 SDRAM.

They also designed several types of memory and graphics cards, including the Video RAM (VRAM), Windows RAM (WRAM), Synchronous Graphics RAM (SGRAM) and GDDR3, which are optimized versions of DRAM memory as video.