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Category Archives: Computer Organization & Architecture

In this article, we will discuss the Return from Subroutine and Return from Interrupt and will explain in detail and finally conclude with Difference between… Read More
Introduction :If in microprocessor chip, new circuitry can be added with special purpose to perform special tasks or to perform operations on numbers in order… Read More
Introduction :In a computer, all the instructions and data are stored in main or primary memory.  During execution, they have to be transferred to the… Read More
Prerequisite : Random Access Memory (RAM), Introduction of Embedded Systems Introduction :Unlike application programs in computers, software in embedded systems do not execute from RAM.… Read More
Optical Disks :An disk that is optical basically a memory gadget that stores information permanently. For putting away information optical plate utilizes LASER innovation. A… Read More
DATA processing instructions :We use data processing instructions to manipulate data within the registers.  Types for data processing instructions –  Arithmetic instructions Logical instructions Multiply… Read More
RISC processors :They are processors that use a small instruction set and simple addressing mode so that their instructions can be executed much faster within… Read More
Introduction :As instructions are a part of the program which are stored inside the memory, so every time the processor requires to execute an instruction,… Read More
Command word of 8259 is divided into two parts : Initialization command words(ICW) Operating command words(OCW) Initialization command words(ICW) : ICW is given during the… Read More
Stack Frame :Stack is one of the segments of application memory that is used to store the local variables, function calls of the function. Whenever… Read More
Global Descriptor Table : The Global Descriptor Table is a data structure which is used by Intel x86-family processors starting with the 80286 for the… Read More
Prerequisites: 8259 PIC8259 PIC is designed for the 8085 and 8086 microprocessor’s series.  Need For PIC in 8085 and 8086 : In 8086 we have… Read More
Prerequisites : Hardwired control unit Here the control signals are generated using hardware.   There are three types of Hardwired Control Units.1. State table method : State… Read More
Prerequisite : Detailed study about the Time Shared Bus, Crossbar Switch & Multiport Memory interconnection structure. Introduction :Interconnection structure can decide the overall system’s performance… Read More
Prerequisite –  Cache Coherence Cache Coherence :In multi-processor systems, each processor can have its own cache & when processors are allowed to update data of… Read More

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