
Section 11. Glossary
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FLOAT
Four‐bytefloating‐pointdatatype.DefaultCR1000datatypeforPublic
orDimvariables.SameformatasIEEE4.IEEE4isthenameusedwhen
declaringdatatypeforstoreddatatabledata.
FP2
Two‐bytefloating‐pointdatatype.DefaultCR1000datatypeforstored
data.WhileIEEEfour‐bytefloatingpointisusedforvariablesand
internalcalculations,FP2isadequateformoststoreddata.FP2provides
threeorfoursignificantdigitsofresolution,andrequireshalfthe
memoryasIEEE4.
FTP
FileTransferProtocol.ATCP/IPapplicationprotocol.
fullduplex
Systemsallowcommunicationssimultaneouslyinbothdirections.
garbage
Therefuseofthedatacommunicationworld.Whendataaresentor
receivedincorrectly(therearenumerousreasonswhythishappens),a
stringofinvalid,meaninglesscharacters(garbage)oftenresults.Two
commoncausesare:1)abaud‐ratemismatchand2)synchronousdata
beingsenttoanasynchronousdeviceandvi
ceversa.
globalvariable
AvariableavailableforusethroughoutaCRBasicprogram.Thetermis
usuallyusedinconnectionwithsubroutines,differentiatingglobal
variables(thosedeclaredusingPublicorDim)fromlocalvariables,
whicharedeclaredintheSub()andFunction()instructions.
ground
Beingorrelatedtoanelectricalpotentialof0Volts.
halfduplex
Systemsallowbi‐directionalcommunications,butnotsimultaneously.
handshake,handshaking
Theexchangeofpredeterminedinformationbetweentwodevicesto
assureeachthatitisconnectedtotheother.Whennotusedasaclock
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