A dominant theme of the ________ is the embedding of short-range mobile transceivers into a wide array of gadgets and everyday items, enabling new forms of communication between people and things, and between things themselves.

When a subclass constructor calls its superclass constructor, what happens if the superclass’s constructor does not assign a value to an instance variable?

a. A syntax error occurs. b. A compile-time error occurs. c. A run-time error occurs. d. The program compiles and runs because the instance variables are initialized to their default values.

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

1. The act of transferring a unit of data between memory and a peripheral device is called logical I/O. 2. Logical I/O is performed by software and physical I/O is performed by hardware. 3. A relative record number indicates a record’s position relative to the beginning of a file. 4. On many mainframes, the process of translating a logical I/O request to physical form is performed by an access method. 5. Although they can all be plugged into the parallel port, laser printers, ink jet printers, color printers, and even functionally similar printers manufactured by different companies are different. The responsibility for performing unique, device-specific tasks is assigned to a software routine called an access method board.