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(WiFi) Wireless Networking - Advantages and Disadvantages

(WiFi) Wireless Networking - Advantages and Disadvantages The popularity of wireless LANs is a testament primarily to their convenience, cost efficiency, and ease of integration with other networks and network components. The majority of computers sold to consumers today come equipped with all necessary wireless LAN technology. Advantages of Wifi : Convenience The wireless nature of such networks allow users to access network resources from nearly any convenient location within their primary networking environment (a home or office). With the increasing saturation of laptop-style computers, this is particularly relevant. Mobility With the emergence of public wireless networks, users can access the internet even outside the...

Diode: Definition, Symbol, and Types of Diodes

What is a Diode? A diode is defined as a two-terminal electronic component that only conducts current in one direction (so long as it is operated within a specified voltage level). An ideal diode will have zero resistance in one direction, and infinite resistance in the reverse direction. Although in the real world, diodes can not achieve zero or infinite resistance. Instead, a diode will have negligible resistance in one direction (to allow current flow), and very high resistance in the reverse direction (to prevent current flow). A diode is effectively like a valve for an electrical circuit. Semiconductor diodes are the most common type of diode. These diodes begin conducting electricity only if a certain threshold voltage is present in the forward direction (i.e. the “low resistance” direction). The diode is said to be “ forward biased ” when conducting cu...