Answer the following statements true (T) or false (F)

1. Because different brands of computers often imply different hardware, application
software written for one brand on computer cannot run on another.
2. The advantage of using layers of abstraction is that you can focus on the details of any
given layer without losing sight of the other layers.
3. The idea behind viewing a system as a set of layers of abstraction is derived from an old
architectural concept called layering.
4. The contents of a black box are unknown to the other black boxes, so each layer is
functionally independent.
5. Two black boxes communicate with each other only through a shared interface or point
of linkage.

1. False
2. True
3. True
4. True
5. True