Evgenii Legotckoi
Evgenii LegotckoiJuly 30, 2015, 9:06 p.m.

AndroidThe file on the Android OS. Read and write operations

write, file, Android, read

Read and write operations to file are standard functionality of any applications that are logging the events, work with files, up to the transfer of data over the network. In this article, we consider methods of recording information in the …

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Evgenii Legotckoi
Evgenii LegotckoiJuly 30, 2015, 3:49 a.m.

Data Transmission TechnologiesCircuit switching and packet data transmission networks

коммутация каналов, составной канал, коммутация пакетов, дейтаграммная передача, виртуальный канал, элементарный канал

Circuit switching and packet - it's methods for solving the generalized problem of switching data in any network technology. Complex technical solutions of the generalized switching tasks in its entirety consists of the particular problems of data transmission networks.

By …

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Evgenii Legotckoi
Evgenii LegotckoiJuly 29, 2015, 4:47 a.m.

Fiber Optic Transmission LinesFOTL - Tutorial 006. Installation of fiber-optic communication lines

fiber, волс, монтаж

Basic concepts and definitions

The most responsible operation in the process of construction of fiber-optic, predetermining the quality and range is the installation of optical fibers. Such a combination of fibers and installation cables are produced in the manufacturing process …

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Evgenii Legotckoi
Evgenii LegotckoiJuly 28, 2015, 3:56 a.m.

Fiber Optic Transmission LinesFOTL - Tutorial 005. Fiber-optic cables. Classification

ВОК, волс, fiber

Classification of fiber optic cables

Fiber-optic cables (FOC) - a cable products, containing a number of optical fibers and the reinforcing member enclosed in a common envelope, on top of which, depending on the operating conditions of the protective cover …

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Evgenii Legotckoi
Evgenii LegotckoiJuly 27, 2015, 3:32 a.m.

Data Transmission TechnologiesСampus network

Кампусные сети, корпоративная сеть, сеть отдела, сеть предприятия, сеть рабочей группы

Introduction

Corporate Network - a network whose primary purpose is to maintain the operation of a particular enterprise that owns this network. Corporate network users are the only employees of the company.

In contrast to the prodier networks, enterprise networks, …

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Evgenii Legotckoi
Evgenii LegotckoiJuly 27, 2015, 3:21 a.m.

Data Transmission TechnologiesStandardize Data Transfer Technology

Стандартизация, ЛВС, ШПД

Standardization and sources of standards

Universal argument about the benefits of standardization, which is valid for all industries, computer networks is of particular importance. The essence of the network - the connection of various equipment, and therefore there is a …

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Evgenii Legotckoi
Evgenii LegotckoiJuly 26, 2015, 10:12 a.m.

AndroidToast - Customization pop-up message on the Android

Android, Toast

Give customization of all applications under OS Android !!!

With the slogan I want to tell today about customization pop-up message (Toast) in the Android OS. In any application that is designed and developed with great care, the question may …

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Evgenii Legotckoi
Evgenii LegotckoiJuly 21, 2015, 9:55 a.m.

AndroidAndroid. Customization ListView

ListView, ListAdapter, Android

Customization ListView is common in developing applications for Android OS. ListView (List) allows you to display the same type of information in your application, for example, show the products with prices and features, if you develop applications for online sales. …

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Evgenii Legotckoi
Evgenii LegotckoiJuly 20, 2015, 2:57 a.m.

Data Transmission TechnologiesTopology data networks

иерархическая звезда, кольцевая топология, топология ЛВС, полносвязная топология, ячеистая топология

Under the topology of the network refers to the configuration of the graph, whose vertices correspond to the end nodes of the network (such as computers) and communications equipment (eg, routers), and the edges of the physical or informational communication …

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Evgenii Legotckoi
Evgenii LegotckoiJuly 20, 2015, 2:38 a.m.

Data Transmission TechnologiesArchitecture of data transmission networks

network, transmission

Decomposition of the tasks of networking

Network architecture - a view of the network as a system of interrelated elements, each of which is assigned a specific private function.

In addition, each of the network elements solves a common problem. …

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Evgenii Legotckoi
Evgenii LegotckoiJune 29, 2015, 3:47 a.m.

Fiber Optic Transmission LinesFOTL - Tutorial 004. Dispersion in the optical fiber

fiber, волс, модовая дисперсия

Distinguish mode dispersion, which is caused by a large number of modes in the optical fiber and the chromatic dispersion associated with the incoherence of light sources actually operating in a certain range of wavelengths.

Consider the propagation of the …

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Evgenii Legotckoi
Evgenii LegotckoiJune 29, 2015, 3:36 a.m.

Fiber Optic Transmission LinesFOTL - Tutorial 003. The attenuation in the optical fiber

fiber, волс, потери

The most important parameters are the optical fiber loss and attenuation of the transmitted energy. These parameters define the range of the FOC and on its effectiveness. Attenuation in optical fibers due to manifestation of the following losses:

α c …

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m

C ++ - Test 004. Pointers, Arrays and Loops

  • Result:80points,
  • Rating points4
m

C ++ - Test 004. Pointers, Arrays and Loops

  • Result:20points,
  • Rating points-10

C++ - Тест 003. Условия и циклы

  • Result:42points,
  • Rating points-8
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