teachers could provide pictures of lots of input and output devices and some objects that are neither. The children could sort the pictures using a Venn diagram ...

What components make up a full-blown ladder diagram? There are several types of input and output devices. For the purpose of this article, we will focus on conventional electromechanical devices. See ...

teachers could provide pictures of lots of input and output devices and some objects that are neither. The children could sort the pictures using a Venn diagram ...