Networks+I+keyterms

Types of networks:

 * 1) **LAN**: (Local Area Network) a small network that has a small range e.g. a house or small business
 * 2) **WLAN:** (Wireless Local Area Network) The above + wireless
 * 3) **MAN:** (Metropolitan Area Network) a network with a higher range bigger enough to cover a part of a city
 * 4) **WAN:** (Wide Area Network)

Network related terms:

 * 1) **Client:** A programs which sends requests to a server.
 * 2) **Server:** A program which provides services to the client.
 * 3) **Client / Server:** When a computer program,the server, sends a request to another one, the server, in order to be able to have a service.
 * 4) **Ethernet:** It is formed of 8 copper cables an enables you to connect to the Internet through your PC's port and your ISP
 * 5) **Network:** A group of interconnected computers.
 * 6) **P2P:** (Peer-to-Peer) When information is shared not using a single-sompute server but all of the computers can work as a server
 * 7) **NIC: (**Network Interface Card) It's a card that you connect on your computer to be able to connect to a network.
 * 8) **ATM:** (Automatic Teller Machine) "cajero automático"
 * 9) **EDI : (**Electronic Data Interchange) Is a way to exchange data from businesses
 * 10) **EFT:** (Electronic Funds Transfer) It helps to make an online money deposit or bank transaction
 * 11) **ISP:** (Internet Sevice Provider)
 * 12) **Modem:** It is a device that regulates the signals from
 * 13) **AP:** (Access point)a station or device in a wireless LAN, that plugs into an Ethernet switch or hub.
 * 14) **UPS:** (Uninterruptible Power Supply) provides a battery backup when the electrical power fails to an unacceptable voltage level.​
 * 15) ** WiFi: ** Enables most IT devices to connect wirelessly to the internet.It requires a hotspot or access point
 * 16) ** BlueTooth: ** wireless technology that enables the transfer of data over short distances. It creates PAN´s (Personal Area Networks)
 * 17) **I**** P Address: ** (Internet Protocol address) Its a set of numbers assigned to each device that can connect to a network that uses internet protocol for communication. Used for: local addressing and host or network identification. [[image:webkit-fake-url://677E66D1-003F-476B-86F6-051BDE6B5987/Ipv4_address.svg.png width="225" height="134" caption="Ipv4_address.svg.png"]]
 * 18) ** ** Router:It is part of a network´s switch. It determines the next network point to which information(packet) should be directed to. ** **
 * 19) ** ** Switch: ** **

Security terms:

 * 1) **Firewall:** a part of a computer system or network that is designed to block unauthorized access.
 * 2) **Encryption:** any procedure used to convert text into ciphertext (encrypted message) to prevent anyone but the intended person from reading that data.
 * 3) **SSL:** (Secure Socket Layer) Protocols which are made to provide security for communication over the networks
 * 4) **Login** : Process to enter to a webpage using your password and username
 * 5) **Password:** a secret word-code to serve as a security measure against unauthorized access.
 * 6) **Username:** a name or nickname that someone uses for identification purposes when logging onto a computer,e-mail address or certain webpages.
 * 7) **Access:** To be able to enter to a place you want to enter.
 * 8) **Access permissions:** features that control access to shared resources
 * 9) **Sysadmin:** system administrator
 * 10) **Physhing**
 * 11) **Pharming**
 * 12) **Brute Force Attack**
 * 13) **Rainbow Tables Attack:**

E-Commerce terms:

 * 1) **E-commerce:**
 * 2) **B2B:**
 * 3) **B2C:**
 * 4) **C2C:**
 * 5) **PayPal:**