Choosing a 256 MB Memory RAM
A random access memory is a temporary storage device in a computer. It serves to keep the data in current use so that it can be accessed as fast as possible by the processor. Data is retained in the device for as long as the system is powered on. Once it is no longer running, the computer depends on other storage devices such as the hard drives. You can now upgrade your computer to the Kingston PC100 256MB RAM available on eBay.
What are the different types of RAM?
The main types of RAMs that run today's computers include the static RAM (SRAM), dynamic RAM (DRAM), synchronous dynamic RAM (SDRAM), and the double data rate (DDR)
- SRAM - SRAM functions with consistent power flow. This means it does not require to be refreshed to keep the data intact. It consumes relatively low power and features quick access speeds. It is commonly used in hard drive buffers, digital-to-analog-converters (DAC) on video cards, and CPU cache.
- DRAM - This type of memory requires a periodic refresh to remember the data being stored. The capacitors in this memory discharge energy with time and the data becomes lost when the energy is completely drained. It is typically used in video graphic and system memories.
- SDRAM - SDRAM falls under the DRAM and is more commonly used. It responds to the data input upon the CPU's clock signal. The benefit of using this kind of synchronous operation is what is known as pipelining. This is the ability to read new instructions before previous ones have been resolved completely. The SDRAM ships data at 133 MHz bus-speeds.
- DDR - Under this category, there are the DDR SDRAM, DDR2 SDRAM, DDR3 SDRAM, and DDR4 SDRAM which represent four generations. There is a double increase in data transfer rate with every generation.
What should I consider when upgrading my computer's RAM?
Other than the type, other factors to consider when upgrading your computer's memory include the form factor, the capacity, and the speed rating:
- Form factor - The compatibility of the RAM with your computer's motherboard is crucial. RAMs come in two form factors, which are the dual in-line memory module (DIMM) and small outline DIMM (SO-DIMM). These differ in size, shape, and number of pins. You should confirm the factor before purchasing one.
- Capacity - The amount of space determines how much data can be stored on your desktop or laptop when you are using it. The Kingston PC100 with the 256 Mbps capacity will work with most notebooks that accept PC100. It will allow you to keep a few basic files.
- Speed Rating - The module's speed rating is the rate at which it transfers data. The higher the rate, then the faster your device will store and locate the information kept locally.