Have you ever wondered what a search engine is? When surfing the Internet, reading the news or accessing the mail, you use the services of a browser installed on your personal computer. However, he does not search the Internet on his own, but with the help of special search engines.
Definition
So what is a search engine from a system administrator's point of view? In general terms, this is a system designed to search for information. In more official terms, it is a software and hardware system designed to search for data on the Internet. There are enough interfaces for this purpose for every taste. Usually the user chooses the most convenient interface and uses it all his life.
The search engine itself consists of a search robot that searches for information on sites; an indexer that provides the fastest search and output of the highest quality result; and a graphical user interface. Consider some popular information systems and their interfaces.
Search engine
As a graphical user interface, browsers enable interactionuser with search engines. The very first browser that any user who buys a computer on their own gets acquainted with is Internet Explorer. However, usually no one lingers on it for a long time, since very often there are failures in its work, delays in processing information, and the search results do not always satisfy the interests of the user. Therefore, people usually start using search engines with a more user-friendly interface.
If you want to change your browser, be sure to consider using FireFox. It is convenient and fast in operation, rarely anyone changes it to other interfaces. Introduced in 2004, the free browser has quickly gained popularity, but it has never been compared to Google, which produces a browser and its own search engine. The only advantage is that FireFox rarely writes viruses.
The Google search engine is rightfully considered the leader among browsers. The most convenient interface, its own built-in search engine and friendly user interface allow you to win the heart of the consumer from the first minute of using this browser.
For mobile devices, Opera or OperaMini is the best choice. The convenience of bookmarking allows the user to work much faster in this browser on the phone than with any other graphical interface.
IPS
Before we start looking at search engines on the Internet, let's understand the concept of what informationsearch system. In general, such a system can be called any application or interface that gives the user a search result in information storage systems and databases. There are 2 types of IPS.
- Documentary. The search in these systems is carried out not by the information itself, but by special indexed codes like libraries, when they first look at the card of the book, and only then they find the book itself.
- Factual. Here the search is carried out in the same way, not by a specific file, but by some facts about it.
Leader
When talking about information systems, it is impossible not to mention the leader among them. It is, without a doubt, the Google search engine. According to 2014 data, more than 68% of users prefer to use this particular search engine. Based on page indexing, this search engine contains over 60 trillion documents.
The history of Google began in 1996 at Stanford University as a teaching project by Larry Page and Sergey Brin. Their system is based on the OCR method, the so-called transparent management method, which became the basis for the development of the company for many years.
What is "Google" from the point of view of the average user? This is a convenient, and most importantly - a clean interface, without a bunch of ads on the main search page. An account system that allows you to store browsing data and bookmarks in the virtual space, no matter what device you used. After Googlebought the Android company, with the help of the account system it became possible to unite all their devices into a single network.
Yandex
How do people in Russia answer the question, what is a search engine? In our country, the development of Internet technologies also did not stand still. This can be seen in the development of users of a variety of browsers. So what is the Yandex search engine? In Russia, there is its own search engine with many integrated functions, such as an Internet wallet (by the way, not supported by most popular online stores and services), a fairly good map service, though not comparable to Google. There is even an app that is supposed to show traffic jams, but, as is often the case, a good idea turned into a farce, as traffic information takes too long to update.
On top of that, the main search box is stuffed with news, weather and other gadgets that are absolutely unnecessary for a person who has gone online to find, for example, his favorite song.
Beware of the virus
It would seem, what harm can a search engine do? However, there is one IPS that is nothing more than a pest. It's called Web alta. Here are some of its features, and you yourself decide what the Web alta search engine is.
Its main feature is that it does not ask the user for permission to install. If the browser andsearch "Amigo" often comes with downloaded applications from the Internet, and during installation you can simply uncheck the box (the main thing is to notice in time that you are offered to install something other than what you downloaded), then this system itself registers as a start page in your browser. Moreover, removing it from there is a problem even for advanced users.
What is the Web alta start page? This is a lot of "useful" news worthy of the first pages of the yellow press - all the "true" stories from the world of stars and the like. Advertising on Web alta also deserves special mention. All kinds of means for weight loss, pumping muscles and men's he alth, medicines for all diseases, female breast enlargement are undoubtedly useful links for every person. Do not under any circumstances follow these links. You can easily catch a virus. And if you're lucky enough to avoid it and manage to order some "drugs and drugs", then be prepared to say goodbye to your he alth.
