• Explain the parts of an information system. What part do people play in this system?
•Describe the different types of
computers. What is the most common type? What are the types of personal
computers?
•What is connectivity? What is a computer
network? What are the Internet and the Web? What is cloud computing, the
wireless revolution and loT?​

the information on wikis belongs to the ".info (tdls)" domain.

credit to ace:  

batradivjyot25.  

a software engineer i believe

answerpanning and scanning;

only #2 represents an object at rest on a table.

in #1, there is no normal force due to the table; the object is accelerating downward.

in #3, the vertical forces are not balanced; the object is accelerating downward.

in #4, neither the vertical nor the horizontal forces are balanced. the object is accelerating upwards and to the right.