GPS: Global positioning system
- A specialized netowork developed by US Department of Defense.
-A network interface card (NIC) permits direct network connection.
--> adds an additional serial port to the computer.
-Modem: a hardware device that connects a computers serial port to a telephone line,,,
-the modem converts the digital signals to analog so that the message can transmitted through telephone.
Broadband Connection: a connection with much greater bandwidth than modems have.
DSL uses standard phone lines.
DSL and cable modems have nowhere near the bandwidth of the fiber optic cables that are replacing copper wires.
the fastest growing wirelss LAN technology is know as Wi-Fi.
Bluetooth: named by a danish king.
-overcomes differencs between mobile phines handheld computers.
-with bluetooth its possible to create a personal area network (PAN)
Network operating system(NOS)
system handles communications among many workstations.
Networks are used to share information and is more efficient.
Enables people to workd togethers in ways which are not difficult or expensive.
No comments:
Post a Comment