Choose all of the items that accurately describe an operating system. manages a computer’s hardware

implements essential features like file and folder management

is managed by the microprocessor (CPU)

provides the platform that application software runs on

is not necessary on a smartphone

The ieee 802.11: defines standards for wireless local area network (wlan) communication protocols. identifies various computers or devices connected to a network. verifies any resource attached to another computer on a network that is different from the computer to which the user is logged on. connects multiple local area networks (lans) and wide area networks (wans).