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AFCAT (INDIAN AIR FORCE RECRUITMENT)

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What is the Ethernet • เคˆเคฅเคฐเคจेเคŸ เค•्เคฏा เคนै ?

What is the Ethernet? || เคˆเคฅเคฐเคจेเคŸ เค•्เคฏा เคนै? Ethernet   Ethernet is a family of wired networking technologies commonly used in local area networks (LANs) for connecting devices like computers, printers, and routers. It was invented in the 1970s by Robert Metcalfe and his team at Xerox PARC, and has since become the most widely used LAN technology in the world. The Ethernet standard defines the physical and data link layers of the network stack, specifying how devices communicate with each other over the network. Ethernet uses a variety of physical media for transmission, including twisted-pair copper wiring, coaxial cable, and fiber optic cable. Data is transmitted in packets, with each packet containing a header and a payload. Ethernet operates using a shared medium, meaning that all devices on the network are connected to the same physical network segment and compete for bandwidth. To prevent collisions and ensure that only one device transmits at a time, Ethernet uses a technique ca...
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What is Internet? || How work internet || เค‡ंเคŸเคฐเคจेเคŸ เค•्เคฏा เคนै ? || เค‡ंเคŸเคฐเคจेเคŸ เค•ैเคธे เค•ाเคฎ เค•เคฐเคคा เคนै ||

 What is internet? | เค‡ंเคŸเคฐเคจेเคŸ เค•्เคฏा เคนै ? The internet is a vast network of interconnected devices and computers that enable the exchange of information and data between users worldwide. It is a technology that has revolutionized the way we communicate, learn, work, and entertain ourselves. At its core, the internet is a system of networks that uses standardized communication protocols to connect computers and devices across the world. These networks are managed by internet service providers (ISPs) who provide internet access to users through wired or wireless connections. The internet has its roots in the 1960s when the United States Department of Defense developed a network called ARPANET to link its research institutions. ARPANET was the first packet-switching network, which means that data was broken down into smaller packets and sent across the network to its destination. Over the years, the internet has evolved and grown exponentially, connecting millions of computers and device...
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What is the hard disk drive? || เคนाเคฐ्เคก เคกिเคธ्เค• เคก्เคฐाเค‡เคต เค•्เคฏा เคนै?

WHAT IS THE HARD DISK DRIVE? A hard disk, also known as a hard drive, is a storage device used in computers and other digital devices to store data. It is a non-volatile storage device, which means that data is retained even when the power is turned off. The hard disk consists of one or more metal platters coated with a magnetic material. These platters spin rapidly while a read/write head moves across the surface to read or write data. The read/write head is mounted on an arm that can move in and out, allowing it to access different parts of the platter. The data on a hard disk is stored in binary form as magnetic patterns on the surface of the platters. The read/write head can change the magnetic state of these patterns, which allows it to write data to the disk or read data from the disk. Hard disks are available in various sizes and capacities, ranging from a few gigabytes to several terabytes. They are commonly used in desktop and laptop computers, servers, and other digital devic...
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