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DESIGN PRINCIPLES OF MODERN SYSTEM. Karuna Rai Roll no:16 Computer ‘B’.

Introduction. Modern computer systems are designed to achieve high performance, efficiency, and reliability. Some important design principles are: Efficient memory utilization Use of cache, different levels Improvement in input and output mechanism Pipelining Parallel processing Multi-core systems.

Efficient memory utilization. Memory resources are used effectively to reduce wastage. Techniques such as virtual memory and memory management help optimize performance. Efficient memory use allows more programs and data to be handled simultaneously..

Use of cache, different levels. Cache is a small, high-speed memory located between the CPU and main memory. Frequently used data and instructions are stored in the cache for faster access. L1 Cache: Smallest and fastest, located inside the CPU core. L2 Cache: Larger than L1 but slightly slower. L3 Cache: Shared among multiple CPU cores and larger in size. Multiple cache levels help balance speed and storage capacity..

Modern systems use advanced I/O techniques such as DMA (Direct Memory Access), buffering, and interrupt-driven I/O. These methods increase data transfer speed and reduce CPU workload..

Pipelining divides instruction execution into several stages. Multiple instructions are processed simultaneously at different stages. This increases CPU throughput and overall performance..

Parallel processing. Multiple processors or processing units work on different tasks at the same time. It reduces execution time and improves efficiency for large computations..

Multi-core systems. A single processor chip contains two or more processing cores. Each core can execute tasks independently. Multi-core processors improve multitasking and application performance while reducing power consumption..

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