Disadvantages Of Computer Memory

Memory, in general means ‘remembering’. There are so many different types of memory inside a single PC. Computer memory supposed to help the computer to keep the data when it had not been processed yet. It is also responsible to store the data or applications on a permanent or temporary basis. There are two types of memory that can be classified as primary memory and secondary memory.

Primary memory or also a main memory used by the computer to access the data first or directly. Even though it is costly, it is not largely used for data but it demonstrates faster processing ability. Primary memory is use by most computer systems around the world for related purposes, and as for personal data storage purpose, it uses secondary memory devices.

RAM can access data in computer in order if it has been loaded. If the RAM performance is high, normally it will translate to a higher performance of the computer system. Dynamic RAM (DRAM) and Static RAM (SRAM) are two types of RAM and both have differing constructions and characteristics. These characteristics include speed, complexity, and cost. SRAM is a digital device that uses the same logic elements used in the processor. It is more reliable but expensive. Due to its high cost, SRAM is normally found in small memories and is easy to use from a designer’s point of view. If power is supplied to SRAM, only then it will hold its data. Static memory has a high cost, consumes more power (than dynamic RAM), has a low storage density and is used mainly for small (cache)

Furthermore, it is also can set a quick access to the data. Hard disk is a non-volatile memory, that means it is a permanent memory which is even though the power is switched off, the data is permanently stored.

Pen drive is often considered to be an improvement on both the older floppy drive disks and the more modern compact disks. It is smaller in size that we can put it in our pocket. A pen drive is called as a portable universal serial bus. It is shaped like a pen and can be connected to computer using USB port. Because of that, it should be easy to move the data from one device to other.

Then we have external hard drive. We can attach external hard drive to a computer through a USB or FireWire connection, also can be connected wirelessly because an external hard drive is a portable storage device. External hard drives typically have high storage capacities and are often used to back up computers or serves as a network