LAN, WAN and Other Area Networks

КУРС ΙІІ СЕМЕСТР VI

Практичне занятття № 55

Тема: Переклад тексту за фахом Типи комп'ютерних мереж

Текст:"Types of computer networks"

Граматика:Неозначені часи. Пасивний стан дієслова.

ФМК.: Мовленнєві зразки з'ясування необхідної інформації у межах сфери спілкування

С.Р.№ 13: Переклад та переказ тексту за фахом “Computer network classification”

http://compnetworking.about.com/od/basicnetworkingconcepts/a/network_types.htm

Вправа 1Прочитайте текст. Випишіть незнайомі слова та словосполучення з тексту та перекладіть їх. Перекладіть текст українською мовою.

Introduction to Network Types

LAN, WAN and Other Area Networks

By Bradley Mitchell, About.com Guide

One way to categorize the different types of computer network designs is by their scope or scale. For historical reasons, the networking industry refers to nearly every type of design as some kind of area network. Common examples of area network types are:

LAN - Local Area Network

WLAN - Wireless Local Area Network

WAN - Wide Area Network

MAN - Metropolitan Area Network

SAN - Storage Area Network, System Area Network, Server Area Network, or sometimes Small Area Network

CAN - Campus Area Network, Controller Area Network, or sometimes Cluster Area Network

PAN - Personal Area Network

DAN - Desk Area Network

LAN and WAN were the original categories of area networks, while the others have gradually emerged over many years of technology evolution.

Note that these network types are a separate concept from network topologies such as bus, ring and star.

LAN - Local Area Network

A LAN connects network devices over a relatively short distance. A networked office building, school, or home usually contains a single LAN, though sometimes one building will contain a few small LANs (perhaps one per room), and occasionally a LAN will span a group of nearby buildings. In TCP/IP networking, a LAN is often but not always implemented as a single IP subnet.

In addition to operating in a limited space, LANs are also typically owned, controlled, and managed by a single person or organization. They also tend to use certain connectivity technologies, primarily Ethernet and Token Ring.

WAN - Wide Area Network

As the term implies, a WAN spans a large physical distance. The Internet is the largest WAN, spanning the Earth.

A WAN is a geographically-dispersed collection of LANs. A network device called a router connects LANs to a WAN. In IP networking, the router maintains both a LAN address and a WAN address.

A WAN differs from a LAN in several important ways. Most WANs (like the Internet) are not owned by any one organization but rather exist under collective or distributed ownership and management. WANs tend to use technology like ATM, Frame Relay and X.25 for connectivity over the longer distances.

LAN, WAN and Home Networking

Residences typically employ one LAN and connect to the Internet WAN via an Internet Service Provider (ISP) using a broadband modem. The ISP provides a WAN IP address to the modem, and all of the computers on the home network use LAN (so-called private) IP addresses. All computers on the home LAN can communicate directly with each other but must go through a central gateway, typically a broadband router, to reach the ISP.

Other Types of Area Networks

While LAN and WAN are by far the most popular network types mentioned, you may also commonly see references to these others:

Wireless Local Area Network - a LAN based on WiFi wireless network technology

Metropolitan Area Network - a network spanning a physical area larger than a LAN but smaller than a WAN, such as a city. A MAN is typically owned an operated by a single entity such as a government body or large corporation.

Campus Area Network - a network spanning multiple LANs but smaller than a MAN, such as on a university or local business campus.

Storage Area Network - connects servers to data storage devices through a technology like Fibre Channel.

System Area Network - links high-performance computers with high-speed connections in a cluster configuration. Also known as Cluster Area Network.

Вправа 2Дайте визначення скороченням англійською мовою та перекладіть їх українською мовою:

CAN, DAN, LAN, MAN, PAN, SAN, WAN, WLAN

Вправа 3Поставте 4 питання до тексту. Дайте відповіді на питання вашого товариша.

Вправа 4Визначте часові форми підкреслених речень з вправи 1.

Вправа 5Змініть подані нижче речення таким чином, щоб змінився стан дієслова.

1. A networked office building, school, or home usually contains a single LAN

2. LANs are also typically owned, controlled, and managed by a single person or organization.

3. A MAN is typically owned an operated by a single entity such as a government body or large corporation.

4. Storage Area Network - connects servers to data storage devices through a technology like Fibre Channel.

Практичне занятття № 56

Тема:Переклад тексту за фахомЛокальні мережі

Текст:"Local networks"

Граматика:Неозначені часи. Пасивний стан дієслова.

ФМК: Мовленнєві зразки з'ясування необхідної інформації у межах сфери спілкування

С.Р.№ 14: Переклад та переказ тексту за фахом "Metropolitan area network "

«Local networks»

Вправа 1.Прочитайте та перекладіть текст усно. Випишіть незнайому лексику з тексту та вивчіть її.

Definition:A local area network (LAN) supplies networking capability to a group of computers in close proximity to each other such as in an office building, a school, or a home. A LAN is useful for sharing resources like files, printers, games or other applications. A LAN in turn often connects to other LANs, and to the Internet or other WAN.

Most local area networks are built with relatively inexpensive hardware such as Ethernet cables, network adapters, and hubs. Wireless LAN and other more advanced LAN hardware options also exist.

Specialized operating system software may be used to configure a local area network. For example, most flavors of Microsoft Windows provide a software package called Internet Connection Sharing (ICS) that supports controlled access to LAN resources.

The term LAN party refers to a multiplayer gaming event where participants bring their own computers and build a temporary LAN.

LAN, WAN and Other Area Networks - student2.ru

A local area network (LAN) is a computer network that connects computers and devices in a limited geographical area such as home, school, computer laboratory or office building. The defining characteristics of LANs, in contrast to wide area networks (WANs), include their usually higher data-transfer rates, smaller geographic area, and lack of a need for leased telecommunication lines.

Вправа 2.Прочитайте текст ще раз. Складіть до нього план. Перекажіть текст згідно до плану.

Вправа 3.Складіть діалоги за ситуаціями:

· Ви з товаришем готуєтесь до іспиту. Зараз ви розглядаєте питання «Локальні мережі»

· Викладач дав тему на самостійне опрацювання тему «Локальні мережі». Студенти паралельної групи вже виконували це завдання. Поспілкуйтеся з одним з них за цією темою.

Вправа 4.Визначте та випишіть іменники з поданого нижче речення:

A local area network (LAN) is a computer network that connects computers and devices in a limited geographical area such as home, school, computer laboratory or office building.

Вправа 5.Визначте та підкресліть члени речення:

1. A LAN supplies networking capability to a group of computers.

2. A local area network is useful for sharing resources.

3. Most local area networks are built with relatively inexpensive hardware.

4. Wireless local area networks also exist.

5. Specialized operating system software may be used to configure a LAN.

Вправа 6.Доповніть речення згідно до тексту:

1. Most flavors of Microsoft Windows provide a …. called …. that supports controlled access to…… .

2. The term …. refers to a multiplayer gaming event where …... bring their own ….. and build a…… .

3. The defining characteristics of LANs, in contrast to …. , include their usually higher …. , smaller geographic area, and lack of a need for leased….. .

ПІДКАЗКА:

computers

data-transfer rates

internet connection sharing

LAN party

LAN resources

participants

software package

telecommunication lines

temporary LAN

wide area networks

http://creativemind-khaleeq.blogspot.com/2011/05/lan-local-area-network.html