EntityQ1362921· pop 14· linked from 81 articlespollingSign in to saveactively sampling the status of an external device by a client program as a synchronous activityConnectionscomputerEntityoperating systemEntitycentral processing unitEntityprinterEntitybitEntitybyteEntitymachine codeEntityperipheralEntityflip-flopEntityinput/outputEntitynetwork switchEntityethernet hubEntityclientEntityprocessor registerEntityinterruptEntitymultitaskingEntitystar networkEntityinteger data typeEntityparallel portEntityabstractionEntityCategoriesEvents (computing)Input/output