Explain the touch metaphor in detail, and explain what changed about computing.
What will be an ideal response?
The touch metaphor refers to an
illusion that the user is touching the
content of the display; the change was
required because it is inconvenient for
mobile devices to use a pointing
device like a mouse.
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The on-going debate between proponents of the relational data model and proponents of the object-oriented data model (if one truly exists), resembles that between the proponents of network/hierarchic systems and relational systems a couple of decades ago. However, another system is evolving that may have a significant impact on what the database management system of the future may be and that is the Object-Relational Database Management System (ORDBMS).
What will be an ideal response?
To use VDI, your physical computer is first converted to a virtual machine.
Answer the following statement true (T) or false (F)
Use the table to find ordered-pair solutions for the equation. 
0__3____-2__0
A. 
0 0
3 3
-2 -2
0 0
B. 
0 0
3 -3
2 -2
0 0
C. 
0 0
3 3
2 -2
0 0
D. 
0 8
3 3
-2 -2
0 0
E. 
0 -8
3 -11
10 -2
8 0
A computer ___________________ is merely a command for the computer to perform on of the operations that it knows how to do.
Fill in the blank(s) with the appropriate word(s).