physical value

n : cost of reproducing physical property minus various

allowances (especially depreciation) [syn: {reproduction

cost}]

physical layer

Layer one, the lowest layer, in the {OSI} seven

layer model, concerning electrical and mechanical connections

to the network. The physical layer is used by the {data link

layer}. Example physical layer {protocols} are {CSMA/CD},

{token ring} and bus.

(1994-12-23)