There are mainly 5 types of DRAM: Asynchronous DRAM (ADRAM): The DRAM described above is the asynchronous type DRAM. It is a hardware device that assembled on the motherboard for storing data and instructions for performing a task on the system. It is used for storing both instructions to be executed and data. RAM(Random Access Memory) is a part of computer’s Main Memory which is directly accessible by CPU. Architecture and components of Computer System. Memory Memory Basics This chapter discusses memory from both a physical and logical point of view. Modern computer would come with 2GB or more of main memory. What are the types of DRAM packages? stream RAM (Random Access Memory) is the hardware location in a computer where the operating system, application programs, and data in current use are kept so that they can be quickly reached by the computer's processor. Similarly, computer memory also works. Two types of memory are used by the computer, one for storing data permanently and second for operating. § It can quickly store and retrieve large amounts of data. �Ҁ��L����mtw��3i*ImSŗ��{���s�;8?�d?s��� Such devices are a good substitute for floppy disks and CD – ROMs as they are smaller, faster, have thousands of times more capacity, and are more durable and reliable. 1. Personal computers: - This is the most common type found in homes, schools, Business offices etc., It is the most common type of desk top computers with processing and storage units along with various input and output devices. Primary Memory / Volatile Memory: Primary Memory is internal memory of the computer. Memory . They The programs and data that the CPU requires during execution of a program are stored in this memory. The secondary memory stores the data and keeps it even when the power fails. Primary Memory / Volatile Memory– Primary memory is internal memory of the computer. 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