Describe the duty cycle of a printer and how it relates to operating cost.
What will be an ideal response?
The duty cycle of a printer is specified in pages per month and indicates how many pages you can expect your printer to produce without breaking down. A personal laser printer has a duty cycle of about 2,500 pages per month-that means about 100 pages a day.
On average, you can expect to pay about three cents per page for black-and-white laser printing. This per-page cost includes periodically replacing the toner cartridge and drum. A toner cartridge and a drum unit each cost about $70, though prices vary by manufacturer and model.
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To prevent class objects from being copied:
a. Make the overloaded assignment operator private. b. Make the copy constructor private. c. Both (a) and (b). d. None of the above.
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?
The black boxes around the image in the accompanying figure show that the image has been ____.
A. copied B. selected C. placed D. moved
What is the term used for the level of performance you can expect during typical usage and workloads?
A. performance peak B. performance index C. performance baseline D. performance limit