1) Active cavity radiometer 2) Clue dir 3) Crossword answer dir 4) Crossword-puzzle dir 5) Horiz 6) NATO or CARE 7) Unlike this ans Found on https://www.crosswordclues.com/clue/acr
Audio Communications Riser - a slot that is only used by large OEMs to add cheap devices to their computers. Since ACR devices are software based, they often times sap a lot of CPU resources. Found on https://www.encyclo.co.uk/local/22026
Allows cell rate. Parameter defined by the ATM Forum for ATM traffic management. ACR varies between the MCR and the PCR, and is dynamically controlled using congestion control mechanisms. Found on https://www.encyclo.co.uk/local/22803