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Cisco Modules and Memory
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Memory FAQ

What is Memory?
Why buy memory from the IT Help and Support Centre?
Do you offer a warranty on your memory?
What if I don’t see the memory I’m looking for on your site?
What are the main types of memory?
Why should I upgrade my memory?
Memory refers to the components of a device which retain digital data. However the term memory is typically used to refer to ‘main memory’, a type of fast temporary storage which is directly accessible to the device’s CPU. This memory then stores the data required for device to run programs or complete tasks.
We guarantee the compatibility of all of our memory products, and always ensure that they meet or surpass the standards set by the manufacturers of the devices in which they are intended for use. Our customer support operatives are equipped with specialist knowledge of all of our products, and are always happy to advise you on the correct memory to suit your needs. If you need advise on your memory, or would like to find out more please Contact us and one of the team will get back to you shortly.
Yes, we offer a lifetime warranty on all of our memory. In the unlikely event of a fault please contact us and we will assist you in getting your replacement as quickly as possible.
If you can’t find what you’re looking for on our website please let us know. We are able to supply memory products across a wide range of manufacturers, from networking devices to personal computing. We not only supply compatible products, but also manufacturer's originals.
RAM (Random Access Memory) : RAM is the most common form of memory chip; an integrated circuit comprised of transistors and capacitors. The “random access” denotes that the CPU can retrieve and store information in any order required. The RAM chip therefore provides the CPU with a temporary storage medium, where it can process electronic data. The variants SRAM (Static RAM) and DRAM (Dynamic RAM) both hold data but do so in a different ways.

DRAM (Dynamic Random Access Memory) : DRAM is one the most common types of memory, it can hold information for a short period but must refresh regularly. It is used to temporarily store information.

SRAM (Static RAM) : In contrast to DRAM, Static RAM does not need to be refreshed periodically as the transistors inside of the chip continue to hold stored data until the power supply is cut off. This means that data can be written and read more quickly than in a DRAM memory chip.

SDRAM (Synchronous Dynamic Random Access Memory) : synchronizes the input and output signals with the system board. While DRAM responds as quickly as possible to changes in control inputs, SDRAM synchronises with clock signal of the system bus. This enables higher speeds for SDRAM memory chips when compared with standard DRAM.

DDR memory : DDR stands for Double Data Rate, and runs at twice the speed of normal SDRAM.

Flash Memory : Flash memory is a solid-state, non volatile, rewritable memory which acts like a combination of RAM and a hard disk. In the event that the power is lost, the data is retained in the memory. It is high speed, durable, and has low voltage requirements.

Memory is an important part of your device, and the CPU relies heavily on it for normal operations.

The device's CPU loads the command or program into memory, and once the data is loaded into memory the CPU is then able to access this data at a much greater speed. Generally, the more memory a device has the faster it can operate, however this has a limit which will vary between devices.

This increase in performance occurs because the memory is where information is stored until required by the CPU, so more memory gives the CPU access to a greater amount of data. The device's CPU is able to continue processing without interruption so long as all of the information required is stored in the memory. If the device requires information which isn't stored in the memory, the CPU must stop and retrieve the required information from storage. This is then placed into the memory. The more interruptions the device's CPU receives the slower it will operate. A greater amount of memory results in fewer interruptions, and therefore the CPU and device will operate more quickly.

For this reason upgrading your memory can increase the performance of your device, particularly if it has to run new feature sets or an updated operating system.

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