COMPUTER SYSTEM ORGANISATION

Computer Basics and CPU Von Neumann model, Various subsystems, CPU, Memory, I/O system bus, System bus, CPU and Memory registers, Program counter, Accumulator, Instruction register, Micro-operations, Register transfer language, Instruction fetch, Decode and execution, Data movement and manipulation, Instruction formats and addressing modes of basic computer. 8085 microprocessor organization. Control Unit Organization Hardwired control unit, Micro and nano programmed control unit, Control memory, Address sequencing, Microinstruction formats, Microprogram sequencer, Microprogramming, Arithmetic and logic unit : Arithmetic processor, Addition, Subtraction, Multiplication and division, Floating point and decimal arithmetic and arithmetic units, Design of arithmetic unit. Input Output Organization Modes of data transfer - Program controlled, Interrupt driven and direct memory access, Interrupt structures, I/O interface, Asynchronous data transfer, I/O processor, 8085 I/O structure, 8085 instruction set and basic programming. Data transfer - serial/parallel, synchronous/asynchronous, Simple/half duplex and full duplex. Memory Organization Memory maps, Memory hierarchy, Cache memory - organization and mappings. Associative memory, Virtual memory, Memory management hardware. Multiprocessor Pipeline and vector processing, Instruction and arithmetic pipelines, Vector and array processors, Interconnection structure and inter-processor communication.