September 22, 2026
3.1 Computer Architecture & Fetch-Decode-Execute Cycle
Von Neumann Architecture and Processor Registers The fundamental model of modern digital computers where programs and data reside together in main memory. Registers: Program Counter (PC), Memory Address Register (MAR), Memory Data Register (MDR), Current Instruction Register (CIR), and Accumulator (ACC). Buses: Address Bus (unidirectional, carries memory locations), Data Bus (bidirectional, carries instructions and operands), […]