explain the following
(a) switch & Hub (b) web page (c) search engine (d) protocol computer ka question hai
Answers
Answer:
(a)A Hub is a networking device that allows you to connect multiple PCs to a single network. It is used to connect segments of a LAN. A hub stores various ports, so when a packet arrives at one port, it is copied to various other ports.
A switch is something that changes the flow of an electrical circuit. The most common kind of switch is something (for example a railroad switch) which can be taken off of one course and put onto another. The term "switch" usually means electrical power.
(b)Web page. A web page is a simple document displayable by a browser. Such documents are written in the HTML language (which we look into in more detail in other articles). A web page can embed a variety of different types of resources such as: style information — controlling a page's look-and-feel.
(c)computer software used to search data (such as text or a database) for specified information also : a site on the World Wide Web that uses such software to locate key words in other sites.
(d)A protocol is a set of rules and guidelines for communicating data. Rules are defined for each step and process during communication between two or more computers. Networks have to follow these rules to successfully transmit data.
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