Digital technology (Digital technology) is based on the representation of signals of discrete bands of analog levels, and not in the form of a continuous spectrum. Digital technologies that can be used in computers, primarily computers, in various fields of electrical engineering, such as gaming machines, robotics, automation, measuring instruments, radio and telecommunications devices and many other digital devices.

INTERNET (Internet - inter + net) is a worldwide computer network that unites millions of computers into a single information system. The global network links virtually all major scientific and governmental organizations of the world, universities and business centers, news agencies and publishing houses, forming a giant data repository for all branches of human knowledge. Virtual libraries, archives, news feeds contain a huge amount of text, graphics, audio and video information. The Internet has become an inseparable part of modern civilization. The life of modern society is becoming increasingly computerized. The requirements to the efficiency and reliability of information services are growing, and new types of information services are emerging. Already, scientists are developing fundamentally new forms of global information networks.

GPS-navigator is a device that receives signals from the global positioning system in order to determine the current location of the device on the Earth. GPS devices provide information about latitude and longitude, and some can calculate the height. Hardware GPS-navigator there are several important components, which largely depends on the accuracy and quality of the device:GPS-чипсет набор микросхем, в котором процессор самая важная часть.чипсет The GPS antenna is tuned to the frequencies at which the data of the navigation satellites are transmitted. Display for information display. The BIOS memory provides communication between the hardware and software. Built-in Flash-memory is used to store the operating system, software and user data. Other elements of the board - GPRS-module, Bluetooth-module, radio, etc. The presence of these elements depends on the architecture of a particular model of the navigator. Connectors (external interfaces) - external power connector, headphone jack, memory card slots and SIM cards. The set of connectors depends on the specific model of the navigator.

Automobile navigators Modern car navigators are able to make a route taking into account the organization of traffic and carry out targeted search. They can have an extensive infrastructure base. Some models are able to take and take into account when plotting the route information on the situation on the roads, avoiding, if possible, serious traffic congestion. Tourist navigators. Portative tourist navigators are designed for tourism (water, mountain, foot) and outdoor activities. As a rule, such navigators have a waterproof enclosure in accordance with the IPX7 standard, capable of operating and receiving a satellite signal in the most difficult conditions of dense forest and mountainous terrain. They imply the possibility of using special topographic maps of the area. Туристический навигатор Garmin eTrex Legend HCx

Maps in GPS-navigators All electronic GPS-maps can be divided into two main types of vector and raster. 1. Raster maps are the simplest and most accessible type of cards. In fact, this is an image of the terrain to which geographic coordinates are attached. The scale of the raster map directly depends on the original version; or it's a photograph from a satellite, or a scanned paper map. 2.Vector maps represent a database where information about objects, their characteristics and mutual location, geographic coordinates and so on is stored. The maps can store a variety of characteristics of the terrain: mountains, rivers, lakes, hollows, roads, bridges. On the left - a raster map on the screen of the navigator, to the right - a raster map with superimposed over roads and a paved route.

The information age made possible rapid global communications and the existence of information networks, which significantly changed the form of modern society. Information era - means the historical period of human society. It is based on microelectronic information and communication technologies and genetic engineering - the basis of the technological paradigm characterized by this period, it replaces or overlaps the technological paradigm of the industrial era, which is based mainly on production and distribution of energy.