Tec11

1-network

A group of interconnected computers, including the hardware and software used to connect them.
-Reliabilty,equality of access
-health,education,business

2-

Local Area Wireless Network

(LAWN). A technology from O'Neill Communications, Inc., for wireless networking using a radio transmitter/receiver.
-reliability, control, equality of access
-health,education, business,intertainment

3-

Ethernet

The most popular type of local area network (LAN), which sends its communications through radio frequency signals carried by a coaxial cable or twisted pair wiring, at 1 or 10 Mbps. Within the OSI model, Ethernet is defined at layer one (physical) and layer two (data link). Based on Carrier Sense Multiple Access/Collision Detection (CSMA/CD), Ethernet works by simply checking the wire before sending data. Each computer checks to see if another computer is transmitting and waits its turn to transmit. If two computers accidentally transmit at the same time and their messages collide, they wait and send again in turn. Software protocols used by Ethernet systems vary, but include Novell Netware and TCP/IP.
-reliability, security,people and machine
-health, eduation, business, ientrtainment

4-

Wi-Fi

Wireless Fidelity -- refers to any type of 802.11 network.
-security,authenticity,reliability
-education, health,business,entertainment

5-

LAN

Local Area Network - A computer communications system limited to no more than a few miles, commonly in the same building, and using high-speed connections (2 to 100 megabits per second). A computer network linking workstations, file servers, printers, and other devices within a local area, such as an office. LANs allow the sharing of resources. A short-haul communications system that connects ADP devices in a building or group of buildings within a few square kilometers, including workstations, front-end processors, controllers, switches, and gateways. Common LAN protocols are Ethernet and Token Ring. A home network is a LAN in the home.
- Reliability,security,people and machines
-health, education, business

6-

MAN

Metropolitan Area Network. A network that serves a metropolitan area.
-reliability,security,people and machines
-health,entertainement, business

7-

WAN - Wide Area Network

Wide Area Network. A physical or logical network that provides capabilities for a number of independent devices to communicate with each other over a common transmission-interconnected topology in geographic areas larger than those served by local area networks. A WAN typically uses common-carrier lines. A LAN doesn't. WANs typically run over leased phone lines--from an analog phone line to T-1 (1.544 Mbps). The jump between a local area network and a WAN is made through a device called a bridge or a router.
-reliability,security,authenticity
-health,education,business,entertainment

8-

Node

A concentration point in a network where numerous trunks come together at the same switch.
-reliability,security,authenticity,people and machines
health,business,education

9-

fiber-optic cable

A cable that carries laser light, encoded with digital signals, rather than electrical energy. Made of thin fibers of glass, fiber-optic cables can transmit large amounts of data per second. Fiber-optic cables cannot be tapped by remote sensing equipment because they do not emit electromagnetic radiation.
-reliability,security,people nd machines
-health,entertinment,business

10-

client

The computer in a client/server architecture that requests files or services. The computer that provides services is called the server. The client may request file transfer, remote logins, printing, or other available services often across a network or the Internet.
-reliability,security
education,business

11-
server
A system that provides network service such as disk storage and file transfer, or a program that provides such a service. A kind of daemon which performs a service for the requester, which often runs on a computer other than the one which the server runs. A single server machine could have several

-reliability,control,people and machines

-Education, Politics abd government, health,education

12- access permissions : permition granted to access a sucure sight by the owner. These sites are usually protected by pas codes and by some antivirus softwares

-Reliability, securtiy, authenticity

-Politics and gorvernement, Business and emplyment

13-
spam, mail spam, e-mail spam
The electronic equivalent of junk mail often in the form of commercial announcements. The act of sending a spam is called, naturally, "spamming." To crash a program by overrunning a fixed-site buffer with excessively large input data. Also, to cause a person or newsgroup to be flooded with irrelevant or inappropriate messages.

-reliability,people and machine,privacy

-education,entertainemt,authenticity

10.) Password: The most common security tools used to restrict access to computer systems.

S/E: Privacy: You only have access to your password

Security

14“tunnels” through the public Internet or between intranets; a method an organization can use to set up an extranet.

S/E: Private and Security

AOI: Business

15.) Sysadmin: A system administrator, s a person employed to maintain and operate a computer system and/or network.

S/E: People & machines

AOI: Business

16.) Nodes: Each computer and shared peripheral on a local-area network.

S/E: Equality of access

AOI: Business and Education

17.) UPS (uninterruptible power supply): A hardware device that protects computers from data loss during power failures.

S/E: Reliability

AOI: Business and Education

18.) EDI: (electronic data interchange): A set of specifications for conducting basic business transactions over private networks.

S/E: Privacy and Security

AOI: Business and Education