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Li-Fi vs Wi-Fi: A Battle of Light and Waves

Li-Fi vs Wi-Fi: A Battle of Light and Waves Li-fi is a light fidelity device that supports only the infrared and other lighting systems to transfer the data to the device which is used to receive from the sender device. Wifi is a wireless fidelity device that supports the radio waves to transfer the data to the wifi device which is used to receive the wifi signals at the limited ranges due to the device version capacity. Introduction to the computer system and computer applications related topics are listed following below here: Li-Fi vs Wi-Fi: A Battle of Light and Waves Let’s discuss the computer system related topic and questions above listed and their answers are following below here: Li-Fi vs Wi-Fi: A Battle of Light and Waves There are some points on the computer system and data communication related to the topic of “Li-Fi vs Wi-Fi: A Battle of Light and Waves” following below here: Lifi based data communication system:- Li-Fi is a light based signal data transmission ...
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about the CPU and its units io unit, control unit and ALU

"Hi everyone, I'm Rudra, a CS engineer and passionate blogger. Welcome to my post on [about the CPU and its units io unit, control unit and ALU ], where I'll share insights on Information Technology and Computer Science education. My goal is to provide helpful information and answer your questions. Feel free to ask me anything in the comments below. Let's dive into today's topic…” 🙂

Central processing unit (CPU)and its units input unit, storage unit, control unit and ALU

The CPU is a main part of the computer. It control all the peripheral device of the mother board.

The primary function of a CPU is to execute instruction or programs. Besides it also controls the operation of all other components, such as memory, input and output devices. Under the processing unit control, Programs and data are accepted from the input devices and stored in the memory. Outputs are displayed on the video screen or printed on paper once the processing of a program is complete.
The processing unit of a small computer normally has a single processor, Whereas the one for a bigger computer may contain a number of processors. Each processor, in a large processing unit, performs a specific task assigned to it.


CPU working


In this figure the solid lines are shows us to indicate the flow of data and also flow of the instruction.
 The dotted lines represents the control exercised by the control unit.
 The figure shows the basic arrangement of different units of a computer.


CPU: The figure shows the Central Processing unit is the combination of the Control unit and Arithmetic logic unit that are connected to each other permanent line as shown in the above figure.

Input Unit: The input unit works with Control Unit, Storage Unit and Arithmetic Logic Unit in the execution of the instructions.

Storage Unit: The storage unit stores the instruction of the input signal or instruction which is controlled by the control unit and calculated by the arithmetic and logic unit in the CPU processing system for making to prepare the output signals or the instructions.

Controls Unit: The control unit controls the instruction of the input signals are where that transfers the in the storage unit and also to set timing of the execution to execute to output signals or instructions.

Arithmetic Logic Unit: In this unit the coming instructions in the storage unit the A.L.U. calculates the instructions in the form of Arithmetic and logical to prepare output form results and after prepare the result the control unit is decides to sends the results to output unit to the resources.


Can a CPU use a cache memory on a computer?

Yes, it is true that the cpu can access the cache memory as their schedule to access the primary memory to process the held program which is ready to be executed on the computer after processing through the cpu.

The cache memory approx in 4mb of storage space increases the fast processing and reduces the cpu processing speed to reduce the loads of many programs.

The programs can be stored depending on their schedule of the cpu to store the program into the cache memory and when the cpu is ready to process then access cache memory on the computer to execute the program on the operating system.



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