GLOSSARY OF TERMS
Term | Explanation |
Cross Cable | The Ethernet cable designed to directly connect one PC to another PC with- |
| out using Ethernet hubs or routers. |
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DDNS | The service which assigns the fixed domain name to the dynamic global IP |
(Dynamic Domain Name Service) | addresses on the Internet. |
| For example, when an IP address is given by the DHCP server, the IP |
| address is replaced by a new one with every access on the network. This |
| may cause user’s having the difficulty in remote access. DDNS reconfigures |
| the linkage between the host name and the IP address so that users can |
| access with the fixed domain name. |
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Default Gateway | Hardware such as a PC or a router, which is the gateway, to access a PC |
| outside the network. |
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DHCP | DHCP automatically assigns IP addresses to clients on a network. |
(Dynamic Host Configuration Protocol) The DHCP server manages information such as IP addresses, gateway | |
| addresses, domain names, subnet masks, and assigns IP addresses to |
| clients. |
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DNS (Domain Name System) | This system links domain names to IP addresses on the Internet. Since it is |
| difficult to remember IP addresses consisting of a long string of numbers, |
| DNS translates domain names consisting of alphanumeric characters into IP |
| addresses. |
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Download | Transferring data from a remote computer to the local computer. |
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Ethernet | A communication medium for LAN, which was developed by Xerox |
| Corporation. |
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Ethernet Switching Hub | A concentrator device used in a |
| several types with various numbers of ports: 8 ports, 4 ports, etc. |
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Frame Rate | The number of frames per second displayed during playback. |
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FTP (File Transfer Protocol) | The protocol used to transfer files over TCP/ IP networks such as the Internet |
| or an intranet. This protocol is used as frequently as HTTP and SMTP / POP3 |
| on the Internet. |
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Installation | Adding hardware or software to the system. |
| This is the term used to indicate when an expansion card is added to the |
| hardware or new software is added to the system. |
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IP Address | The address information used in IP protocol. Every piece of hardware on a |
| network such as the Internet or an intranet must be assigned a unique |
| address. |
JPEG (Joint Photographic Experts Group)
The standard file format for color still images defined by
LAN (Local Area Network) | A network of a comparatively small area such as the same floor, the same |
| building, or the same campus. |
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