Intro To Infromation Technology: April 2011

Saturday, 30 April 2011

The Internet, The Web and Electronic Commerece

URL

URL a.k.a Uniform Resource Locator.

Is in popular usage and in many technical documents and verbal discussions it is often incorrectly used as a synonym for URI. The best-known example of the use of URLs is for the addresses of web pages on the World Wide Web, such as http://www.example.com/.

HTML

HTML a.k.a Hyper Text Markup Language.

HTML is written in the form of HTML elements consisting of tags, enclosed in angle brackets(like <html>), within the web page content.The first tag in a pair is the start tag, the second tag is the end tag (they are also called opening tags and closing tags). In between these tags web designers can add text, tables, images, etc.

JAVASCRIPT

JAVASCRIPT a.k.a ECMAScript.

is a prototype-based, object-oriented scripting language that is dynamic, weakly typed and has first-class functions. It is also considered a functional programming language like Scheme and OCaml because it has closures and supports higher-order functions.

APPLETS

APPLETS a.k.a Java Applets.

Is an application that can be embedded in a web page and require just a little of memory space.

Function : To make a website in a more creative and easy way.

BLOGS

Blog a.k.a weblog

Blogs are usually maintained by an individual with regular entries of commentary, descriptions of events, or other material such as graphics or video. Entries are commonly displayed in reverse-chronological order. Blog can also be used as a verb, meaning to maintain or add content to a blog.

WIKIS

Is a website that allows the creation and editing of any number of interlinked web pages via a web browser using a simplified markup language.

FTP

FTP a.k.a File Transfer Protocol.

Is a standard network protocol used to copy a file from one host to another over a based network.

The FTP is commonly use to download or upload files from/to the sources/server.

Plug-In

In computing, a plug-in (or plugin) is a set of software components that adds specific abilities to a larger software application. If supported, plug-ins enable customizing the functionality of an application.For example, plug-ins are commonly used in web browsers to play video, scan for viruses, and display new file types.

Filter

A filter is a computer program to process a data stream. Some operating systems such as Unix are rich with filter programs. Even Windows has some simple filters built into its command shell, most of which have significant enhancements relative to the similar filter commands that were available in MS-DOS.

INTERNET SECURITY SUITE

Internet security is a branch of computer security specifically related to the Internet. Its objective is to establish rules and measures to use against attacks over the Internet. The Internet represents an insecure channel for exchanging information leading to a high risk of intrusion or fraud, such as phishing. Different methods have been used to protect the transfer of data, including encryption.

Wednesday, 20 April 2011

Carrers In IT

Webmasters

are also called as web archweb architect web developer, site author, website administrator, or webmistress for femalesitect, web developer site author, website administrator, or webmistress for females, they are the person to be responsible for maintaining one or many websites.

Computer Support Specialist

Computer support specialists help people use computers. When something goes wrong, support specialists figure out why. Then, they try to fix it. Many support specialists answer questions over the phone or by e-mail. Others also help people face-to-face. To answer a problem over the phone, the specialist takes the person through the necessary steps to fix the problem using their own computer.

Technical Writer

are also called as technical communicater and they are professional writer who designs, creates, and maintains technical documentation. This documentation includes online help, user guides, white papers, design specifications, system manuals, and other documents.

Sofeware engineer

A software engineer is an engineer who applies the principles of software engineering to the design, development, testing, and evaluation of the software and systems that make computers or anything containing software, such as computer chips, work.

Network Administrator

A network administrator is a person responsible for the maintenance of computer hardware and software that comprises a computer network. This normally includes deploying, configuring, maintaining and monitoring active network equipment. A related role is that of the network specialist, or network analyst, who concentrates on network design and security.

Database Administrator

A database administrator (DBA) is a person responsible for the design, implementation, maintenance and repair of an organization's database. They are also known by the titles Database Coordinator or Database Programmer, and is closely related to the Database Analyst, Database Modeler, Programmer Analyst, and Systems Manager.

System Analyst

A systems analyst may:

Plan a system flow from the ground up.
Write technical requirements from a critical phase.
Interact with designers to understand software limitations.
Perform system testing.
Deploy the completed system.
Document requirements or contribute to user manuals.

Programmer

A programmer, computer programmer or coder is someone who writes computer software. The term computer programmer can refer to a specialist in one area of computer programming or to a generalist who writes code for many kinds of software. One who practices or professes a formal approach to programming may also be known as a programmer analyst.