Data from a paper-based form are being entered into the computer by a data clerk. List TWO types of data entry errors which could occur. [2 marks]

Acetylene is a gas which burns rapidly on its own, and is considered highly explosive. a) true b) false

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.

How would you categorize the software that runs on mobile devices? break down these apps into at least three basic categories and give an example of each.