Summary
Full Transcript
Welcome to 'Introduction to Operating Systems' course ! This lecture provides an overview of PC hardware, emphasizing the components relevant to operating system functionality. The lecture begins by explaining how devices communicate with the CPU through I/O ports, highlighting the concept of address ranges and the use of memory-mapped I/O. It then discusses different addressing types: memory addressing, I/O addresses, and memory-mapped I/O addresses. The lecture delves into the evolution of memory addressing in Intel systems, tracing the progression from segmented memory models to the flat memory model used in modern 32-bit and 64-bit systems. NPTEL Courses permit certifications that can be used for Course Credits in Indian Universities as per the UGC and AICTE notifications. To understand various certification options for this course, please visit https://nptel.ac.in/courses/106106144 #PCHardware #MemoryAddressing #IOMappedIO #IntelArchitecture
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