Monday, March 14, 2011

In what ways has computer technology changed in your own lifetime?

In my parents time, way back long ago, they didn't use computers. they used paper and pencil. maybe a calculator, but it was rare for them to get their hands on one. so electronics are out of their database. they did have type writers.
 my parents grew up in the village areas so thee wasn't enough electricity to supply a computer at the time. things got around by letters, notes and even gossip. they obtained knowledge from the library or the book place in a little shed. things have changed dramatically over the 20 years. computer become essential in ever house n cell phones are in almost everyone pocket  

Wednesday, March 2, 2011

Secure Sockets Layer

Transport Layer Security (TLS) and its predecessor, Secure Sockets Layer (SSL), are cryptographic protocols that provide security for communications over networks such as the Internet. TLS and SSL encrypt the segments of network connections at the Transport Layer end-to-end.

Feed

RSS (most commonly expanded as "Really Simple Syndication") is a family of web feed formats used to publish frequently updated works—such as blog entries, news headlines, audio, and video—in a standardized format.

Directories

web directories or catalogs list collected internet addresses on the internet. Each website operator can index his site to be more easily found by interested parties.

Copyright

Copyright is the set of exclusive rights granted to the author or creator of an original work, including the right to copy, distribute and adapt the work. These rights can be licensed, transferred and/or assigned.

boolean Logic

Boolean logic is a complete system for logical operations, used in many systems. It was named after George Boole, who first defined an algebraic system of logic in the mid 19th century.

Blog

A blog (a contraction of the term "web log") is a type of website, 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.

Wiki

A wiki ( ) is a website that allows the easy creation and editing of any number of interlinked web pages via a web browser using a simplified markup language or a WYSIWYG text editor.

webapp

In software engineering, a web application is an application that is accessed via a web browser over a network such as the Internet or an intranet.

Website

A website (also spelled Web site) is a collection of related web pages, images, videos or other digital assets that are addressed relative to a common Uniform Resource Locator (URL), often consisting of only the domain name, or the IP address, and the root path ('/') in an Internet Protocol

Web Cache

Web caching is the caching of web documents (e.g., HTML pages, images) to reduce bandwidth usage, server load, and perceived lag. A web cache stores copies of documents passing through it; subsequent requests may be satisfied from the cache if certain conditions are met.

Web 2.0

The term "Web 2.0" (2004-present) is commonly associated with web applications that facilitate interactive information sharing, interoperability, user-centered design, and collaboration on the World Wide Web.

Uniform Resource Locator (URL)

URL: the address of a web page on the world wide web

Social Networking Site

Any of several websites that provide a virtual community in which people with a shared interest may communicate

Really Simple Syndication(RSS)

A data format for syndicating news and other content. People can subscribe to RSS feeds so they will be notified every time content is updated on a particular site.

Portal

portal site: a site that the owner positions as an entrance to other sites on the internet; "a portal typically has search engines and free email and chat rooms etc."

Podcast

A podcast is a series of digital media files (either audio or video) that are released episodically and often downloaded through web syndication.

Mosaic

a freeware browser

Internet Service Provider (ISP)

An Internet service provider (ISP), also sometimes referred to as an Internet access provider (IAP), is a company that offers its customers access to the Internet.

Internet Protocol (IP) Address

The Internet Protocol (IP) is a protocol used for communicating data across a packet-switched internetwork using the Internet Protocol Suite, also referred to as TCP/IP.

Hypertext Transfer Protocol (HTTP)

The Hypertext Transfer Protocol (HTTP) is an Application Layer protocol for distributed, collaborative, hypermedia information systems.

Hypertext Markup Language (HTML)

HTML, which stands for HyperText Markup Language, is the predominant markup language for web pages. It provides a means to create structured documents by denoting structural semantics for text such as headings, paragraphs, lists etc as well as for links, quotes, and other items.

Home Page

The homepage (often written as home page) is the URL or local file that automatically loads when a web browser starts or when the browser's "home" button is pressed. One can turn this feature off and on, as well as specify a URL for the page to be loaded.

Hit

The number of times a web page file has been accessed.

Geographic Imaging

A geographic information system (GIS), geographical information system, or geospatial information system is any system that captures, stores, analyzes, manages, and presents data that are linked to location(s).

File Transfer Protocol (FTP)

File Transfer Protocol (FTP) is a standard network protocol used to exchange and manipulate files over a TCP/IP-based network, such as the Internet. FTP is built on a client-server architecture and utilizes separate control and data connections between the client and server applications.

Domain

The computer that actually "remembers" all the names of the other machines and their IP Addresses. These are remembered as numbers.

Digital Certificate

A data file that is issued by a Certification Authority to an individual or organisation to identify them to online services.

Cookie

a short line of text that a web site puts on your computer's hard drive when you access the web site

ActiveX

ActiveX is a framework for defining reusable software components that perform a particular function or a set of functions in Microsoft Windows in a way that is independent of the programming language used to implement them.

Worm

A computer worm is a self-replicating Malware computer program. It uses a computer network to send copies of itself to other nodes (computers on the network) and it may do so without any user intervention. This is due to security shortcomings on the target computer

Virus

a software program capable of reproducing itself and usually capable of causing great harm to files or other programs on the same computer; "a true virus cannot spread to another computer without human assistance"

Urban Legend

a story that appears mysteriously and spreads spontaneously in various forms and is usually false; contains elements of humor or horror and is popularly believed to be true

Trojan Horse

A Trojan, sometimes refered to as a Trojan horse, is non-self-replicating malware that appears to perform a desirable function for the user but instead facilitates unauthorized access to the user's computer system. The term is derived from the Trojan Horse story in Greek mythology.

Time Bomb

In computer software, a time bomb refers to a computer program that has been written so that it will stop functioning after a predetermined date or time is reached.

teleconferencing

a conference of people who are in different locations that is made possible by the use of such telecommunications equipment as closed-circuit television

Tagging

a label associated with something for the purpose of identification; "semantic tags were attached in order to identify different meanings of the word"

RDF Summary

Resource Description Framework, used in artificial intelligence programs to define relations; radio direction finding; reality distortion field, used for describing how exposure to a charismatic person can change people's behavior; Random Dopant Fluctuation, used in semiconductor process

Pyramid Schemes

Such activities as the transfer of information or solicitation of persons via the Internet in an attempt to extort money or other valuables or the use of pyramid/chain letters are all illegal and all are prohibited.

Netiquette

Netiquette is network etiquette — that is, the etiquette of cyberspace. Cyberspace has its own culture and not knowing the rules for behaving properly online might result in unintentionally offending or misunderstanding what others say or taking offense when it's not intended.

Logic Bomb

A logic bomb is a piece of code intentionally inserted into a software system that will set off a malicious function when specified conditions are met.

hoax

fraud: something intended to deceive; deliberate trickery intended to gain an advantage

Fraud

imposter: a person who makes deceitful pretenses

Filtering

A filter is a computer program to process a data stream. Some operating systems such as Unix are rich with filter programs

Windows Mail

Windows Mail is an e-mail and newsgroup client included in Windows Vista, that was superseded by Windows Live Mail. It is the successor to Outlook Express. Microsoft previewed Windows Mail on Channel 9 on October 10, 2005.

User Agent

A user agent is a client application implementing a network protocol used in communications within a client-server distributed computing system.

Text Messaging

Text messaging, also known as "texting", refers to the exchange of brief written messages between mobile phones over cellular networks.

Spam

Spam is the abuse of electronic messaging systems (including most broadcast media, digital delivery systems) to send unsolicited bulk messages indiscriminately. ...

Signature

your name written in your own handwriting

Packets

a packet is a formatted unit of data carried by a packet mode computer network. Computer communications links that do not support packets, such as traditional point-to-point telecommunications links, simply transmit data as a series of bytes, characters, or bits alone. ...

Mailing List

A mailing list is a collection of names and addresses used by an individual or an organization to send material to multiple recipients. The term is often extended to include the people subscribed to such a list, so the group of subscribers is referred to as "the mailing list", or simply "the list".