Ukuba uyila iimveliso ezinjengesixhobo sasekhaya, indawo yokhuseleko, inkqubo yokungena emnyango okanye iperipheral yekhompyuter, usenokukhetha ukufaka i-buzzer njengendlela ekukuphela kwayo yokunxibelelana nabasebenzisi okanye njengenxalenye yojongano olunzulu lomsebenzisi.NguBruce Rose, iNjineli yeZicelo eziPhambili, iCU...
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