Notes with worthy tutorials
Interfacing the Microprocessor with Analog World: As computer used digital binary values whereas we have physical variables, a step by step process is used to convert the physical variable to binary data and again to physical variable. The figure is given below, (i) Transducer: A transducer is a device that … Read more
Pin-Out Diagram of 82C55A: I/O Ports: It has three I/O ports, A, B and C. Each of these has 8 pins. CS : This is used to select the 82C55A for programming and reading or writing. A0 & A1: Register selection is done using the A0 and A1, which select … Read more
Memory Mapped I/O and Isolated I/O are two methods of performing input-output operations between CPU and installed peripherals in the system. Memory mapped I/O uses the same address bus to connect both primary memory and memory of hardware devices. Thus the instruction to address a section or portion or segment of RAM can also be used to address … Read more
Hamming Technique (7,4) : In this case, we will have 4 bits of data and we will add 3 bits of redundant with the data by calculating the 4-bit data. For example, taking a 4-bit data as, The encoder will encode the data as follows , Thus the decoder will receive, 0 1 1 0 … Read more
Comparing Different Types of Memory Devices in Terms of Cost & Performance: The best way to measure the cost of a memory device is the purchase price of a complete unit of its. Let C be the price in dollars of a complete memory system with S bits of storage capacity. The cost c of … Read more
Working Principles of Intel 8086 Microprocessor Execution of instructions can be used to explain the working principles of the microprocessor. This is given below, The BIU outputs the contents of the instruction pointer register (IP) onto the address bus, causing the selected byte or word to be read into the BIU. Register IP is incremented by … Read more
Flag Registers of 8086 Processor: Intel 8086 has 16 flag registers among which 9 are active. The purposes of the FLAG registers are to indicate the various statuses of the processor. It is done by setting the individual bits called flags. There are two kinds of FLAGS; Status FLAG and Control FLAG. Status FLAG reflect … Read more
In computer architecture, a processor register is a quickly accessible location available to a computer’s central processing unit (CPU). Registers usually consist of a small amount of fast storage, although some registers have specific hardware functions, and may be read-only or write-only. Registers are normally measured by the number of bits they can hold, for example, an “8-bit register”, “32-bit register” or a “64-bit register” (or even with more bits).
The Intel 8086, also called the iAPX 86, is a 16-bit microprocessor designed by Intel corporation between 1976-1978. This Intel 8086 microprocessor gave rise to the x86 architecture or 16-bit architecture. The figure given below is the internal architecture of Intel 8086 microprocessor
Problem: Binary Tree is Sum tree or Not. [Problem Link] Explanation: Write a function which returns True if the given binary tree is a Sum Tree, else False. A sum tree a is a binary tree where the value of a node is the summation of the subtree at both its left and right. An … Read more