There are different technical implementations of RAM and Best Laptop Brands. The most commonly used today are mainly in computers and they are volatile, that is, the stored data will be lost after switching off the power supply.
However, there are types of RAM that capture their information even without a power supply (not volatile). These are called NVRAM. Static RAM (SRAM), usually refers to smaller electronic memory devices in the range up to several Mibit. As a special feature they retain their memory content, which is stored in bistable multivibrators, without continuous refresh cycles.
The name is derived from and is valid also for historic core memory, which does not change its state even without voltage over the years. SRAM requires significantly more components (and chip area) than DRAM – specifically four to six transistors per bit of memory versus a (plus a storage capacitor) in a DRAM cell – and is therefore too expensive for large amounts of memory.
However, it provides very fast access times and does not require refresh cycles. Dynamic RAM (DRAM) refers to an electronic memory module which is used mainly as a work memory in computers. Its content is volatile, that is the stored information is quick even with maintained operating voltage.
The information is stored in the form of the state of charge of a capacitor. This very simple structure makes the memory cell, although very small (6 to 10 F ²), however, the capacitor discharges through leakage currents occurring quickly, and the information content is lost. Therefore, the memory cells must be refreshed periodically.
Compared to SRAM DRAM is much cheaper per bit , which is why it is used mainly for RAM. DRAM modules with built-in control circuit for refreshing can behave outwardly as SRAM. This is referred to as a pseudo- static RAM .
It should be much faster write accesses and the number of Schreib-/Lese-Zyklen should be higher by a multiple than NOR flash memory. In this case, it occupies less space and is easier to manufacture the Best Laptop Brands.
Resistive RAM (RRAM) is a non- volatile type of memory consisting of an active layer of thin-film metal oxide whose electrical resistance can be greatly changed by means of electrical impulses.
The change in static is reversible, this results in the possibility of using the material as a non-volatile memory. The data rewriting is very good and the energy consumption thus occurs only in writing and reading. ReRAM is a (as of 2013) recent development , which was still, in 2010 the prototype stage in the development of some companies in the semiconductor industry.