Example 8.2 Assume the following values for the system of Figure 8.14: Length of the virtual address field =32 bits Length of the segment number field = 12 bits Length of the page number field = 8 bits Length of the displacement field = 12 bits Now, determine the value of the physical address using […]
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Memory
Cache Memory Organization
Cache Memory Organization The performance of a microcomputer system can be significantly improved by introducing a small, expensive, but fast memory between the microprocessor and main memory. This memory is called "cache memory" and this idea was first introduced in the IBM 360/85 computer. Later on, this concept was also implemented in minicomputers such as […]
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Virtual Memory and Memory Management concepts
8.1.3 Virtual Memory and Memory Management concepts Due to the massive amount of information that must be saved in most systems, the mass storage device is often a disk. If each access is to a disk (even a hard disk), then system throughput will be reduced to unacceptable levels. An obvious solution is to use […]
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Memory, I/O, and parallel processing : memory organization , introduction and main memory array design
8.1 Memory Organization 8.1.1 Introduction A memory unit is an integral part of any microcomputer system, and its primary purpose is to hold instructions and data. The major design goal of a memory unit is to allow it to operate at a speed close to that of the processor. However, the cost of a memory […]
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