Internet, Software, and Communication Technologies

Internet Connection Types

• Phone line
• Cable
• ADSL
• Satellite
• Mobile telephony

Wi-Fi

A Wi-Fi is a type of Internet connection that allows multiple computers to connect to the Internet without wires.

Killer Apps

In computer jargon, killer apps (killer applications) are software that exploit a technology, developing its potential and increasing the sales of hardware that supports it. Examples include PC, Macintosh, and the Boy.

Google

Google is probably the best-known and largest search engine in the world. It also has many useful programs, web applications, and tools.

Wikipedia

Wikipedia is a multilingual, free-content encyclopedia written by thousands of volunteers worldwide and sponsored by a nonprofit foundation. It includes a topical encyclopedia, almanac, and current events.

Computer Software

Computer software provides the instructions to convert a problem or task into simple math, which is then calculated at high speed.

Computer Hardware

Computer hardware includes the hard drive, microprocessor, graphics card, DVD recorder, and RAM.

Firmware

Firmware is a small computer program that controls motors and electronic devices and peripherals, often tied to electronics.

Bits and Bytes

A bit is the minimum amount of information, but it is rarely seen alone. Bytes are groups of 8 bits.

MP3

MP3 is a compression format for CD-quality audio files. It allows high-quality music storage while occupying minimal space.

Satellites

Satellites are communication systems in orbit around the Earth, using technology to gather information and relay it to and from different parts of the planet. Artificial satellites transmit signals such as images, television, and telephone.

GPS

GPS (Global Positioning System) was created in 1995 as a satellite network to support maritime navigation. It allows users to know their three coordinates (latitude, longitude, and altitude) at all times and in all weather conditions.

Mobile Phones

Mobile phones are objects that fit into any pocket. Mobile telephony consists of two parts: a communications network (or mobile network) and terminals (or phones) that allow access to that network.

Electronic ID

Electronic IDs began being issued in March 2006. They contain an electronic chip with two certificates: one that proves the identity of the person and one that contains a signature with legal force. With electronic IDs, communications and electronic shopping have the same guarantees as in the real world. The microchip stores personal data, a scanned image of the photograph, a digital image of the handwritten signature, a fingerprint, a digital personal e-certificate of identity and signature, an electronic certificate of the issuing entity, and a key pair for the electronic certificate.

Cryptography

Cryptography is the science that protects information from modification and unauthorized use by using complex mathematical algorithms to transform information.