Random Access Memory (RAM) – It is also called as read write memory or the main memory or the primary memory . It is used for storing both instructions to be executed and data. RAM speed is quite high. Random-access memory, or RAM, is an essential component in all devices, from PCs to smartphones to game consoles. DDR RAM is the computer’s primary working memory, storing program instructions and data for use by the central processing unit through the bus controller. Laptop RAM is about half the length of desktop RAM. The data can be erased now and often. Unless documentation specifically states that a global or local function should be used, new applications should use the corresponding heap function with the handle returned by GetProcessHeap . The primary memory which is mounted on the same board as central processing unit performs the following broad functions apart from what has been briefly described in the previous section. Secondary memory refers to storage devices , such as hard drives and solid state drives . Hard Disk vs RAM . Primary Memory is nature volatile. Primary memory holds only those data and instructions on which the computer is currently working. It makes special arrangements for different products according to their nature. Although both the hard drive and RAM are memory, it's more appropriate to refer to RAM as "memory" or "primary memory" and a hard drive as "storage" or "secondary storage." A part of the primary memory is used as working storage. Protection of goods A warehouse provides protection of goods from loss or damage due to heat, dust, wind and moisture, etc. It is slower and cheaper than static RAM. Data is stored in the input area, where it is held till it is required for used in processing. It has a limited capacity and data is lost when power is switched off. You can think of it like reusable scratch paper that you would write notes, numbers, or drawings on with a pencil. The data and instruction required to be processed resides in the main memory. Memory is the most essential part of a computer. A computer stores data using several different methods. As far as teachers are concerned, a teacher is found wherever you are when you’re ready for that teacher. DDR memory belongs to the dual in-line memory module architectural family and is a faster form of SDRAM. CPU, on the other hand, is the hardware within the computer that carries out the instructions of a computer program. As soon as a computer starts, primary memory loads all running applications, including the base operating system (OS), user interface and any user-installed and running software utility. It links all the individual parts of a computer together and also, allows the CPU to access and control these separate parts. These goods are stored from the time of their production or purchase till their consumption or use. Primary memory can be divided into two types of memory that are RAM (Random Access Memory) and ROM (Read Only Memory). The contents on ROM are meant to be stored on a permanent basis. One major reason: computers have far less RAM than drive space. Further explanation of differences Storage capabilities of ROM and RAM. Two types of Ram are normally used, STATIC and DYNAMIC RAM. They both are important and serve different functions within the system. It is used as a cache memory for the computer. From the functional table, we can conclude that the unit is in operation only when CS1 = 1 and CS2 = 0. Static RAM is one which requires the constant flow of the power to retain the data inside it. Primary memory is computer memory that is accessed directly by the CPU . RAM is available in two primary sizes, whether used in a desktop computer or a laptop. Combined, they represent a single memory cell. ii. 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