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Currently stuck on some coursework, i have to explain these common terms/components and these are the ones im stuck on, i have a few ideas about them, but i dont know how to explain them, and also not 100% sure what they do:

Scan frequency
Colour mode (bits)
RJ series (a type of connector?)
DB series (a type of connector?)
DIP, DIL switches
BNC
Coaxial

thanks for any help.

Coax is television aerial wire.

BNC is a type of network interconnect - you usually put it on coax but you can make a BNC network from just about anything.

Colour mode is how many colours you're displaying, in bits. It kinda goes like this:

2bit is 2 to the power 2, eg. 4 colours (white, black, green, red usually).
16bit is 2 to the power 16, eg. 65,536 colours.
24bit (which is what most monitors run at) is 2 to the power 24, eg. 16,777,216 colours.

Incidentally, at 24bit there are 256 levels for each channel of red/green/blue - 0-255. 255 is bright, 0 is off. You know about this right?
It's 256 because 2^8 is 256, and 24/3 (3 channels) is 8.

There's also 32bit, which is red, green, blue and "alpha". Alpha is transparency - a transparency level. Windows make us think monitors run at 32bit but they lie.

www.webopaedia.com

Every computer term ever lister there.

sorry, just found out that the COAXIAL is a type of lead made with a solid central conductor surrounded by insulator and the BNC is the type of connector for the COAXIAL cable.

Currently stuck on some coursework, i have to explain these common terms/components and these are the ones im stuck on, i have a few ideas about them, but i dont know how to explain them, and also not 100% sure what they do:

Scan frequency
Colour mode (bits)
RJ series (a type of connector?)
DB series (a type of connector?)
DIP, DIL switches
BNC
Coaxial

thanks for any help.