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Jumat, 10 Agustus 2012

Memory RAM

Internal random access memory (RAM) is computer memory that is built directly into the chip microcontroller, such as computer central processing unit (CPU). Internal RAM is used by programmers to increase the speed of programs that directly addressed the function of internal RAM, and ensure that the process of data queued to be processed more quickly Internal RAM can speed up processor performance for frequently used instructions can be sent to the CPU faster than pulling them from the external RAM.

Know Your Shape Memory RAM Module

Type of RAM module to a computer system (desktop):
  • DIMM (Dual In-Line Memory Module): is the most common type used today. The form of small circuit board containing memory chips RAM. DIMM memory is standard in desktop computers today.
  • SIMM (Single In-Line Memory Module): is a type of memory module that contains a computer chip RAM used the early 1980s to the 1990s. This differs from the DIMM. SIMM modules must be installed in pairs in the slot on the motherboard. Now it is not used anymore.
  • RIMM (Rambus In-Line Memory Module): This module uses artificial Rambus.Inc RAM chip, used at the beginning of Pentium4 (1999), the module is called RDRAM (Rambus DRAM-). Performance is very good, but because it is expensive, eventually displaced by the DDR until now. Some console-game using this module to obtain the performance of high performance.
  •  CRIMM (Continuity RIMM): this is not a memory module, CRIMM (Figure-4) is only a module on "connection (channel)" for the motherboard that uses the memory type of RIMM. It's cheap. CRIMM RDRAM must be installed on an empty slot, otherwise the computer will not work.
 DIMM - Memory Module for Desktop :
  •  SDRAM - Synchronous Dynamic Random Access Memory, this is the type of DRAM is to synchronize itself with the CPU bus. SDRAM modules, up to date, is the memory standard for modern PCs. When looking at SDRAM, the numbers after the letters "PC" indicates the speed FSB (Front Side Bus) system. Example: SDRAM PC-100, is designed for systems with 100 MHz FSB.
  •  DDR SDRAM - Double Data Rate Synchronous Dynamic Random Access Memory, a type of SDRAM that supports data transfers on a "positive and negative slope" of each cycle (clock)-voltage block (basic digital techniques). DDR-SDRAM consumes less power, making it suitable for notebook computers. DDR-SDRAM is also called SDRAM II or DDRAM. DDR SDRAM (DD2 and DD3 and the next), and RDRAM SDRAM is a replacement technology.
  • DDR2 SDRAM - Double Data Rate Two (2) Synchronous Dynamic Random Access Memory, is the development of DDR SDRAM. DDR2 SDRAM modules provide new features and functions of the higher clock. DDR2 transfers 64 bits of data as much as two times in each clock cycle. DDR2 SDRAM memory is not compatible with DDR SDRAM memory slots.
  •  DDR3 SDRAM - Double Data Rate Three (3) Synchronous Dynamic Random Access Memory, the third generation of DDR SDRAM, DDR2 SDRAM with the promotion of less power consumption, double the pre-fetch buffer, and greater bandwidth for high clock.
  •  RDRAM - Rambus Dynamic Random Access Memory, a memory subsystem that is capable of transferring data at up to 1.6 GB per second. This subsystem consists of RAM, the RAM controller, and bus (path) connection between the microprocessor RAM (cache memory) and other devices in the computer. Direct Rambus (DRDRAM), used with the P4 processor 1999. High-speed interface is expected to accelerate the data-intensive visual such as 3-D, interactive gaming, and streaming multimedia. Rambus uses pipelining to move data from RAM to the cache memory is "closer" to the central processor (CPU) or processor-graphics (GPU).
Note: RIMM is a type of memory developed by Rambus, Inc.. RIMMs similar to DIMMs but have the technology and the number of pins are different.
 
 

SODIMM - Module Memory for Notebook / Laptop
What distinguishes RAM notebook / laptop of desktop RAM is its form factor, the physical size and pin configuration (feet). A normal size DIMM has 100, 168, 184, or 240 pins and a length of 4.5 to 5 inches. In contrast, SODIMM has 72, 100, 144, or 200 pins and small lukurannya 2.5 to 3 inches.
  • SODIMM - Small Outline DIMM, SODIMM memory module is (DIMM), the most widely used in laptops, SODIMM is smaller than DIMM modules used in the desktop. But there are some laptop manufacturers that use the shape and size of the different modules.
  • SORIMM - Small Outline RIMM, SODIMM similar to, but has a different pin number, and using technology Rambus.Inc as in RDRAM (desktop).
 
The more RAM installed in your computer, then access to the storage / memory-secondary (ex, hard disk or CD-ROM) will be increasingly rare. So the computer will be able to work more quickly. This is the advantage of having a large amount of RAM in the computer.

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