Function of a arithmetic-logic unit

How do we use the sumif formula (when dealing with different formats) ?

The open systems interconnection (osi) reference model: defines standards for many aspects of computing and communications within a network. is a generic description for how computers use multiple layers of protocol rules to communicate across a network. defines standards for wireless local area network (wlan) communication protocols. details the advantages and disadvantages of various basic network cabling options.

Which is the highest level of the hierarchy of needs model? a. humanity b. intrapersonal c. team d. interpersonal