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• Surround Sound over HDMI • How to hookup surround sound • Surround Sound Glossary • Blu-ray audio surround sound • Blu-ray Basics Columbia ISA home – › Wiring Diagrams – › Network Terms • • • Google Search Google SEARCH Columbia ISA Site • Home Internet connection • Windows LAN configuration Computer Networking Network Terms Network Glossary IP Address : This is a unique address that all computers and other devices require to communicate over the Internet. This address can be set manually or provided automatically by DHCP. Depending on your setup, this IP address might come from Internet Sharing software, a router, or your ISP. An IP address has a 4 position format with each position representing a number of 0 to 255. The binary format is 8 digits for each position or 0 to 255 so an IP address can be up to 255.255.255.255. Routers typically have an IP address of 192.168.0.1 or the like. You can set a specific IP address yourself if your ISP requires a static address. Otherwise you can setup DHCP to acquire an IP address automatically for you. Every internet server has an IP address but we humans cannot remember them so we use something we can remember such as www.google.com. This is translated into the IP address by another server called a DNS server when required because computers use the IP address to communicate. Mac Address : Media Access Control Address - Every Ethernet device or card has this unique hardware address. It is normally printed directly on the Ethernet card. Subnet Mask : This address is a filter that determines what part of the network your computer is on. For example, many routers and Internet Sharing programs use 192.168.0.1 for an IP address and 255.255.255.0 for a subnet mask. Any computer or device on your local network that has an IP address that matches 192.168.0.x will be able to communicate with each other. DNS : Domain Name System , A DNS server translates domain names like www.google.com into their corresponding IP addresses. While names like www.yahoo.com are easy to remember, computers do not actually use them to communicate. Gateway : The gateway address is the IP address of the computer or device on your local network that gives you access to the Internet. If you are using a router, it is the internal (LAN) IP address of the router. If you are using Internet Sharing software, it is the IP address of the Internet Sharing computer. DHCP : Dynamic Host Configuration Protocol - This is the method by which your computers get their IP addresses automatically. Hub : this is a glorified splitter. It turns one port into 4, 8, 16, etc. The hub gives you more physical ports and nothing else. The hub has an uplink port that sometimes can be switched to a standard port. You would normally connect your Cable or DSL modem to the uplink port. Your PCs would plug into the non-uplink ports. Switch : this is a smart hub. If you have a mix of 10 and 100Mbps devices or computers on your network, upgrading from a hub to a switch can greatly improve performance. Also, if you have many devices on your network, the switch will give you better performance than the hub. Router : In order for you computer to communicate to the Internet using broadband it not only requires a physical connection but also an IP address. The router not only lets you share a physical connection (like a hub or switch, it also lets you share a single Internet IP address with more than one computer or device. Instead of needing three IP addresses for the three computers in your home, you can purchase one for the router and the router will allow all three computers in your home to share your Cable, DSL, ISDN, or Satellite connection. NOTE: If you have PPPoE DSL (requires that you use software to login for Internet Access), you need to verify that any router you purchase also supports PPPoE. DSL Router : A DSL router is simply a router that also functions as an external DSL modem. This DSL router would function as a DHCP server. Bridge : A Bridge allows the free flow of data from one type of physical medium to another. For example, you need a bridge to connect a phoneline network to an Ethernet network. Cable Modem : This device is used when you subscribe to broadband internet service from a Cable TV provider. It typically has a port for the coaxial cable to connect for communication to/from the cable company and also has a RJ-45 port for your Ethernet cable connection to your router or computer. Your cable TV provider uses a specific standard for communications and this means the cable modem must be compatible with that standard. Wi-Fi : Wireless Fidelity or Wi-Fi refers to the wireless LAN technologies that utilize the IEEE 802.11 standards for communications. Wi-Fi is an ever evolving tecnology with enhancements coming every few years. Wi-Fi products use radio waves to transmit data to and from devices with Wi-Fi software clients to access points that route the data to the connected wired network. 802.11ax (Wi-Fi 6) 802.11ax, officially marketed by the Wi-Fi Alliance as Wi-Fi 6 and Wi-Fi 6E, is an IEEE standard for wireless local-area networks and the successor of 802.11ac. It is also known as High Efficiency Wi-Fi, for the overall improvements to Wi-Fi 6 clients under dense environments. Wi-Fi 6E Wi-Fi 6E is an extension of Wi-Fi 6 unlicensed wireless technology operating in the 6GHz band, and it provides lower latency and faster data rates than Wi-Fi 6. The spectrum also has a shorter range and supports more channels than bands that were already dedicated to Wi-Fi, making it suitable for deployment in high-density areas. History of Wi-Fi 1999 : 802.11a : 5GHz : 54 Mbps 1999 : 802.11b : 2.4GHz : 11 Mbps 2003 : 802.11g : 2.4GHz : 54 Mbps 2009 : 802.11n : 5GHz : 600 Mbps 2014 : 802.11ac : 5GHz : 1 Gbps 2019 : 802.11ax : 5GHz : 10 Gbps COLUMBIA ISA Audio Video Empowering consumers thru information. |