Identify a system and describe it in terms of
•its function and its aim•what is part of the system and what is part of the environment
•input, output
•components, their attributes and relationship between components and attributes
•the relationship between components (components are interrelated )
•multi-level hierarchy (systems and subsystems)

Under which key category do the page up and page down keys fall? page up and page down keys fall under the keys category.

Dameas communication challenge is due to which factor

Jason is working on a microsoft excel worksheet and he wants to create a print preview shortcut. his teacher asks him to access the customization option to create the new shortcut. which two tabs should jason select to place the print preview shortcut on the worksheet toolbar? a. new tab (custom) and new group (custom) b. new file tab (custom) and new tab (custom) c. new custom group and new command d. new custom tab and new command