Surfing the Internet's key

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10 Basic Internet Terms: Encryption Web Page Cache DNS SPAM Cracker Server PING W3C Hacker

  Encryption is the process in which data is converted into an unrecognizable or "encrypted" form. It is used in order to protect sensitive information which is only shown by authorized users. This includes files and storage devices, as well as data transferred over wireless networks and the Internet. When an encrypted file is opened it will appear scrambled. It must be decrypted in order to be recognized. This files require a pasword or private key to unlock.

  Web pages are what make up the World Wide Web. These documents are written in HTML (hypertext markup language) and are translated by your browsers. Web pages are not the same thing as Web sites. A Web site is a collection of pages. A Web page is an individual document.

  Cache is the storation of recently used information with the aim of being accesible quickly at a later time. Computers have several different types of caching in order to run more efficiently, thereby improving performance. Common types of caches include browser cache, disk cache, memory cache, and processor cache.

  Stands for "Domain Name System." Domain names serves as names for websites and other services on the Internet. However, computers access Internet devices by their IP addresses. DNS translates domain names into IP addresses, giving you access to an Internet location by its domain name. Thanks to DNS, you can visit any website by typing the domain name, which is easier than the IP address.

When a junk e-mail is sent, it is called SPAM . All these e-mails mesages are unsolicited. Spamming is one of the most notorious violations of Internet etiquette (or "netiquette"), but not illegal.

Person who breaks into a computer system without authorization, with a harmful purpose (destroy files, steal credit card numbers, plant viruses, etc.). Usually, a cracker uses low-level hacker skills to do the cracking.

  A computer that transmits data to other computers is called server . It may serve data to: Systems on a local area network (LAN) Systems on a wide area network (WAN) There are several types of servers: web servers, mail servers, and file servers.

Ping is the signal sent when a host requests a response. It has two primary purposes: 1) to check if the host is available 2) to measure how long the response takes Ping requests can be performed using a ping command, which is a standard one in most command line interfaces.  

W3C stands for "World Wide Web Consortium." The W3C is an international community that includes a full-time staff, industry experts, and several member organizations. All this people work together in order to improve WWW. W3C aim is to develop the Web to its full potential by developing relevant protocols and guidelines.

  This term defines someone who is an expert programmer. Nowadays people say that hackers are people that can gain unauthorized access to other computers, getting over the security levels of a computer system or network to obtain private data.