Web Technology Terms and Internet Applicationsمصطلحات تقنية الويب وتطبيقات الإنترنت

الشريحة 1 من 26

مقدمة الفصل

تفاصيل المصدرالفصل 1 · الشرائح ⁦2, 24, 27, 32, 36⁩
المصدر
الفصل 1 · الشرائح ⁦2, 24, 27, 32, 36⁩

Client and serverالعميل والخادم

Client, server and web browser

Clientالعميل
The requesting system in a client/server relationship, e.g., the user of an organization system is making client requests for records from the server.
Serverالخادم
In general, a server is a special computer that provides services to other computers in the same or other computers.

Server specifications on the slide:

  • Choose the most powerful processor.
  • Operating systems supported: Windows Server 2008.
  • Make sure to include the appropriate number of licenses.
  • Choose the appropriate memory.
  • UPS with software to perform proper shutdown.
تفاصيل المصدرالفصل 1 · الشرائح ⁦2–3⁩
المصدر
الفصل 1 · الشرائح ⁦2–3⁩

Web browser and HTMLالمتصفح و HTML

Client, server and web browser

Web browser
The web client, called a browser, is the software that allows you to interact with information available on the Internet.

أمثلة من الشريحة

  • Netscape Navigator
  • MS Explorer
  • Firefox
HTML (Hypertext Markup Language)
A tagging language used to compose documents that will be viewed by a web browser. It is a standard adopted so that no matter what computer platform someone is using, the web browser knows how to display the web document.
تفاصيل المصدرالفصل 1 · الشرائح ⁦4–5⁩
المصدر
الفصل 1 · الشرائح ⁦4–5⁩

Web page, web site and hostingالصفحة والموقع والاستضافة

Web pageصفحة الويب
A mixture of text, graphics, sound and animation in the HTML format, to make information accessible and easy to understand using the Internet.
Web siteالموقع
A collection of web pages connected (linked) by hypertext clickable links.
Web site storage/hostingالاستضافة
After a web site is designed it must be stored on a computer that can be accessed through the Internet and the World-Wide Web.
تفاصيل المصدرالفصل 1 · الشريحة ⁦6⁩
المصدر
الفصل 1 · الشريحة ⁦6⁩

سؤال سريع

Client, server and web browser

A nurse opens the hospital system and asks for a patient's records, which are sent back by a central computer. In client/server terms, the nurse's system is the:

تفاصيل المصدرالفصل 1 · الشريحة ⁦2⁩
المصدر
الفصل 1 · الشريحة ⁦2⁩

Protocol and TCP/IPالبروتوكول و TCP/IP

Protocols: TCP/IP, HTTP, HTTPS, SMTP, FTP and Telnet

Protocol
A set of conventions governing the processing and especially the data in an electronic communications system.
TCP/IP (Transmission Control Protocol/Internet Protocol)
A set of protocols developed to allow cooperating computers to share resources across a network. They provide a few basic services that everyone needs (file transfer, electronic mail, remote logon, etc.) across a very large number of client and server systems.
تفاصيل المصدرالفصل 1 · الشريحة ⁦7⁩
المصدر
الفصل 1 · الشريحة ⁦7⁩

Protocols you must knowبروتوكولات مهمة

Protocols: TCP/IP, HTTP, HTTPS, SMTP, FTP and Telnet

TermالمصطلحWhat the slides say it is forوظيفته في الشرائح
ProtocolConventions governing the processing and especially the data in an electronic communications system
TCP/IPLets cooperating computers share resources across a network
HTTPRules for exchanging files (text, images, sound, video, multimedia) on the WWW
HTTPSThe same as HTTP but used securely
SMTPExchanging Internet mail between TCP/IP hosts
FTP
  • Transferring (copying) files over the Internet
  • not platform-specific
TelnetAccessing someone else's computer, with their permission
تفاصيل المصدرالفصل 1 · الشرائح ⁦9, 10, 18, 19, 27⁩
المصدر
الفصل 1 · الشرائح ⁦9, 10, 18, 19, 27⁩

سؤال سريع

Protocols: TCP/IP, HTTP, HTTPS, SMTP, FTP and Telnet

In the URL ftp://files.example.com, which part is the "protocol" in the "protocol://address" form?

تفاصيل المصدرالفصل 1 · الشرائح ⁦10, 18, 19, 27⁩
المصدر
الفصل 1 · الشرائح ⁦10, 18, 19, 27⁩

URL and DNSURL و DNS

URL, DNS and domains

URL (Uniform Resource Locator)
A "standard" way of easily expressing the location and data type of a resource. URLs in general take the form "protocol://address", where protocol is something like HTTP, FTP or telnet, and the address is the server name of a given resource or page.
DNS (Domain Name Services)
A network service that associates host names (alphanumeric) with their equivalent TCP/IP address, by means of a standard look-up table.

من الشرائح

  • http://www.afterzed.com/ → 65.108.17.93
تفاصيل المصدرالفصل 1 · الشرائح ⁦8–9⁩
المصدر
الفصل 1 · الشرائح ⁦8–9⁩

Domainsالنطاقات

Domain
On the Internet, a domain is basically a registration category identifying geographic or purpose commonality. There are seven top-level domains currently in use.
Top-level domainالنطاقMeaning on the slideمعناه في الشريحة
comA commercial organization. The largest domain extension currently used.
eduAn educational establishment such as a school or university.
govA branch of the U.S government that is strictly reserved for that purpose.
intAn international organization such as the United Nations.
netA network organization.
orgA non-profit organization.
milA branch of the U.S military that is strictly reserved for that purpose.
  • In other parts of the world the final part of the domain name represents the country in which the server is located, like sd for Sudan.
تفاصيل المصدرالفصل 1 · الشرائح ⁦11–12⁩
المصدر
الفصل 1 · الشرائح ⁦11–12⁩

The Internet and the World-Wide Webالإنترنت والويب

The Internet, the World-Wide Web and the history of the Internet

Internet
At its most basic level, a utility connecting localized computer networks (in a lab, a building, a department, or a campus) with computer networks that extend across a wider area, like a region or a continent.
  • Technically, what distinguishes the Internet is its use of a set of protocols called TCP/IP.
  • Two recent adaptations of the Internet technology are the Intranet and the Extranet.
  • The term "Internet" comes out of the concept of "internetworking".
World-Wide Web (WWW)
A pair of software applications which allow both distribution of and access to information on the Internet. The web is not the Internet but a means of distributing and accessing the information that is on it.
تفاصيل المصدرالفصل 1 · الشرائح ⁦13–14⁩
المصدر
الفصل 1 · الشرائح ⁦13–14⁩

سؤال سريع

The Internet, the World-Wide Web and the history of the Internet

A student says: "The World-Wide Web and the Internet are two names for the same thing." Which reply is correct?

تفاصيل المصدرالفصل 1 · الشريحة ⁦14⁩
المصدر
الفصل 1 · الشريحة ⁦14⁩

History of the Internetتاريخ الإنترنت

In the order the slides giveبترتيب الشرائح

  1. Early 1960s

    Early projects by the US military (known as DARPAnet): a dozen networked computer systems of universities and institutions, sharing computers and fast communication between researchers through e-mails.

  2. Access

    Only people in the government, military and academic had access to the network.

  3. 1991

    The National Science Foundation gradually backed off from its subsidy of the backbone network, then allowed commercial access to the Internet.

  4. ISPs

    A host of businesses called Internet Service Providers (ISPs) sprang up, providing dial-up access to the Internet.

تفاصيل المصدرالفصل 1 · الشرائح ⁦24–26⁩
المصدر
الفصل 1 · الشرائح ⁦24–26⁩
ملاحظات حول المصدر (1)
  • تكتب الشريحة 25 اختصار المؤسسة الوطنية للعلوم «NFS».

Web server and ISPخادم الويب ومزود الخدمة

Web server, ISP and firewall

Web server
Stores and transmits web documents (files). It uses the HTTP protocol to connect to other computers and distribute information.

أمثلة من الشريحة

  • IIS
  • Apache
  • Sun Java System Web Server
ISP (Internet Service Provider)
A company that provides individuals and other companies access to the Internet and other related services such as web site development and hosting (web site storage).
  • The larger ISPs have their own high-speed leased lines so that they are less dependent on the telecommunication providers and can provide better service to their customers.
تفاصيل المصدرالفصل 1 · الشرائح ⁦19–20⁩
المصدر
الفصل 1 · الشرائح ⁦19–20⁩

Firewallالجدار الناري

Firewall
A program, usually an Internet gateway server, that protects the resources of one network from users from other networks. Any enterprise will want a firewall to prevent outsiders from accessing its own private data resources.

Screening methods on the slide:

  • Screen requests to make sure they come from acceptable domain names and IP addresses.
  • Do not allow Telnet access into your network except for your own users.
تفاصيل المصدرالفصل 1 · الشرائح ⁦16–17⁩
المصدر
الفصل 1 · الشرائح ⁦16–17⁩

سؤال سريع

Web server, ISP and firewall

A company wants to stop outsiders from reaching its private data, and to allow Telnet access only for its own users. What does it need?

تفاصيل المصدرالفصل 1 · الشريحة ⁦16⁩
المصدر
الفصل 1 · الشريحة ⁦16⁩

E-commerce and Java appletsالتجارة الإلكترونية والبريمجات

E-commerce, Java applets and XML

E-Commerce
The buying and selling of goods and services on the Internet, especially on the World-Wide Web.

من الشرائح

  • Blooming-Online Florist
  • Amazon.com
Java applet
A small program run on the Web, using Java, the object-oriented programming language. It can be sent along with a web page to a user, and can perform interactive animations and immediate calculations without having to send a user's request back to the server.

من الشرائح

  • Football game
  • Traffic simulation
  • Inner solar system model
تفاصيل المصدرالفصل 1 · الشرائح ⁦15, 21⁩
المصدر
الفصل 1 · الشرائح ⁦15, 21⁩

XMLلغة XML

  • A standard way of describing data would enable a user to send an intelligent agent (a program) to each computer maker's web site, gather data, and then make a valid comparison.
  • XML can be used by any individual or group of individuals or companies that wants to share information in a consistent way.
  • XML is currently a formal recommendation from the World-Wide Web Consortium (W3C).

XML and HTML (both)المشترك

  • Contain markup symbols to describe the contents of a page or file.

HTMLHTML

  • Describes the content of a web page (mainly text and graphic images) only in terms of how it is to be displayed and interacted with, e.g., <P> starts a new paragraph.
تفاصيل المصدرالفصل 1 · الشرائح ⁦22–23⁩
المصدر
الفصل 1 · الشرائح ⁦22–23⁩
ملاحظات حول المصدر (1)
  • الشريحة التي تعرّف XML غير موجودة في الملف، والشريحة 23 لا تكمل وصف XML في المقارنة، فاكتفينا بالمطبوع.

E-mailالبريد الإلكتروني

E-mail (Electronic Mail)
The exchange of computer-stored messages by telecommunication. You can send messages (text, graphic images and sound files) as attachments.
  • E-mail was one of the first uses of the Internet. Probably it is still the most widely used Internet application.
  • A large percentage of the total traffic over the Internet is e-mail.
  • It uses Simple Mail Transfer Protocol (SMTP).
تفاصيل المصدرالفصل 1 · الشرائح ⁦28–29⁩
المصدر
الفصل 1 · الشرائح ⁦28–29⁩

Search engines and meta-search enginesمحركات البحث

Internet applications: e-mail and search engines

Search engines are web sites that sort through by keywords and categories.

Search enginesمحركات البحثMeta-search enginesمحركات البحث الفوقية
DatabaseStore information in databasesNo database maintenance
ResultsReturn a list of sites as hyperlinksCombine results from multiple search engines
Examples on the slidesGoogle, Yahoo, Lycos, Altavista
  • Microsoft MSN
  • IE5.5 built-in meta-search
تفاصيل المصدرالفصل 1 · الشرائح ⁦30–31⁩
المصدر
الفصل 1 · الشرائح ⁦30–31⁩

Intranetsالإنترانت

Intranet
Intranets are private corporate information and collaboration systems that use Internet software and standards.

Why an intranet (slide 32):

  • Can increase market share, profitability, and efficiency.
  • Ideal place for publishing continuously updated corporate information.
  • Powerful, not expensive communications alternative that can provide information anywhere at anytime.
  • Can be used across wide area networks; web server software inter-operates well; web servers do not need large capital expenditures in hardware.
  • Intranets can be relatively easy to install, and inexpensive to administer. They also eliminate printing and out-of-date information.
تفاصيل المصدرالفصل 1 · الشرائح ⁦32–33⁩
المصدر
الفصل 1 · الشرائح ⁦32–33⁩

How an intranet helps a companyاستخدامات الإنترانت

Intranets

استخدامات من الشرائح

  • Procedures manuals
  • Company practices
  • Company phone book
  • Catalog and inventory lists
  • Employee benefits information
  • Bulletin boards
  • Job postings
  • In-house newsletters
  • Training
  • Presentations
  • Order processing
  • Expense report
  • Sales force automation
  • Help-desk and technical support
  • Company suppliers information
  • Video conferencing
  • Access, search and sort database records dynamically by converting databases to HTML on the fly.
  • Putting such applications on an intranet can serve a large group of users at a substantially low cost.
تفاصيل المصدرالفصل 1 · الشرائح ⁦33–35⁩
المصدر
الفصل 1 · الشرائح ⁦33–35⁩

سؤال سريع

Intranets

A company builds a private system, using Internet software and standards, where only its employees read the phone book, procedures manuals and job postings. Which term fits best?

تفاصيل المصدرالفصل 1 · الشرائح ⁦32–33⁩
المصدر
الفصل 1 · الشرائح ⁦32–33⁩

Extranetsالإكسترانت

Extranet
A collaborative network that uses Internet technology to link businesses with their suppliers, customers or other businesses that share common goals.
  • It can be viewed either as part of a company's intranet that is made accessible to other companies, or as a collaborative Internet connection with other companies.
  • The shared information can be accessible only to the collaborating parties or can be publicly accessible.
  • An extranet usually requires a degree of security and privacy from competitors.

من الشرائح

  • Private newsgroups that cooperating companies use to share valuable experiences and ideas.
  • Training programs or other educational material that companies develop and share.
  • Shared product catalogs accessible only to wholesalers or those "in the trade".
  • Project management and control for companies that are part of a common work project.
تفاصيل المصدرالفصل 1 · الشرائح ⁦36–37⁩
المصدر
الفصل 1 · الشرائح ⁦36–37⁩

سؤال سريع

Extranets

Two manufacturers share a product catalog that only their wholesalers can see, over Internet technology, with protection from competitors. Which term fits best?

تفاصيل المصدرالفصل 1 · الشرائح ⁦36–37⁩
المصدر
الفصل 1 · الشرائح ⁦36–37⁩

الخلاصة

تفاصيل المصدر
المصدر
الفصل 1

خريطة الفصل

    1. 1مقدمة الفصل
  1. Client, server and web browserالعميل والخادم ومتصفح الويب

    1. 2Client and serverالعميل والخادم
    2. 3Web browser and HTMLالمتصفح و HTML
  2. HTML, web page, web site and hostingHTML وصفحة الويب والموقع والاستضافة

    1. 4Web page, web site and hostingالصفحة والموقع والاستضافة
  3. Client, server and web browserالعميل والخادم ومتصفح الويب

    1. 5سؤال سريع: العميل
  4. Protocols: TCP/IP, HTTP, HTTPS, SMTP, FTP and Telnetالبروتوكولات

    1. 6Protocol and TCP/IPالبروتوكول و TCP/IP
    2. 7Protocols you must knowبروتوكولات مهمة
    3. 8سؤال سريع: البروتوكولات
  5. URL, DNS and domainsعنوان URL ونظام DNS والنطاقات

    1. 9URL and DNSURL و DNS
    2. 10Domainsالنطاقات
  6. The Internet, the World-Wide Web and the history of the Internetالإنترنت والويب وتاريخ الإنترنت

    1. 11The Internet and the World-Wide Webالإنترنت والويب
    2. 12سؤال سريع: الويب
    3. 13History of the Internetتاريخ الإنترنت
  7. Web server, ISP and firewallخادم الويب ومزود خدمة الإنترنت والجدار الناري

    1. 14Web server and ISPخادم الويب ومزود الخدمة
    2. 15Firewallالجدار الناري
    3. 16سؤال سريع: الجدار الناري
  8. E-commerce, Java applets and XMLالتجارة الإلكترونية وبريمجات جافا و XML

    1. 17E-commerce and Java appletsالتجارة الإلكترونية والبريمجات
    2. 18XMLلغة XML
  9. Internet applications: e-mail and search enginesتطبيقات الإنترنت: البريد ومحركات البحث

    1. 19E-mailالبريد الإلكتروني
    2. 20Search engines and meta-search enginesمحركات البحث
  10. Intranetsالإنترانت

    1. 21Intranetsالإنترانت
    2. 22How an intranet helps a companyاستخدامات الإنترانت
    3. 23سؤال سريع: الإنترانت
  11. Extranetsالإكسترانت

    1. 24Extranetsالإكسترانت
    2. 25سؤال سريع: الإكسترانت
    1. 26الخلاصة