Digital Computer Fundamentals


This subject deals with the Structure, Architecture and Organisation of Computers. It includes topics like I/O modules, Overview of an Operating System, External Memory, Internal memory etc. It deals with the basic fundamentals of the Computers. There is an FTP which provides a summary of many chapters that can be helpful in preparing the notes. This subject also includes a part called "Introduction to 8085 Microprocessor" that includes theory related to 8085 Microprocessor along with Assembly level programming.

Reference: "Computer Organization & Architecture" - By William stallings.

For, 8085 Microprocessor, refer to any XIIth standard text book (Vocational Science: Computer Science). You may also refer to a book written by Ramesh Gaonkar. For,those having a computer at home, can download a software (8085 Stimulator V1.64) with the help of which, one can practise Assembly Level Programming.


8085 Microprocessor:


Introduction to 8085 microprocessor:
- Organization of Microprocessor based
system, 8085 Address Decoding and Memory Interfacing, 8085 Programming Model, InstructionClassification, Instruction Format, Stack and Subroutines, Developing Basic 8085 programs.

Introduction Modern day Computer Systems:
Organization and Architecture,Structure and function.

System Buses:
Computer Components, Computer function, PCI: - Features of PCI bus, Why PCI bus is needed? Concept of PCI Arbitration.

Internal Memory: Concept of Cache Memory, Methods of Cache Mapping, Concept and need for Cache coherency. External Memory: - RAID.

Input / Output
I/O Modules (What are I/O modules? Why do we require them? Etc.),Concept of Programmed I/O, Concept of Interrupt Driver I/O, DMA

Operating System Support:
Basic Concepts, Batch, Multiprogramming and Time- Sharing, scheduling , Scheduling, Memory Management. CPU Organization - Register Organization (Classification of registers), Instruction Cycle, Instruction Pipelining.

Concept of Parallel processing:
Multiprocessing: - Organization, Time-Shared Bus,
Multiport memory, Central Control unit, Multi processors.


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