Resources: IT World Glossary

NAK

Negative AcKnowledgment – An ASCII control character indicating that the check sum received was in error

NAT

Network Address Translation

NEC

National Electrical Code

NEMA

National Electrical Manufacturers Association

NEXT

Near End Cross Talk, measured at the receiver's end, the amount of sending signal that bleeds over to the incoming signal, can cause data corruption

NFPA

National Fire Protection Agency

NIC

Network Interface Card

NIH

National Institutes of Health

Node

A device that uses the network to communicate to other devices A.K.A. workstation, client, host

NOS

Network Operating System such as TCP/IP

NTSC

National Television System Committee – the North and Central American, and Japanese accepted standard for television broadcasting