If you select a multitasking, object oriented language that supports multiple inheritance and has a built-in GUI, writing the program will be a snap. An Intel 80386 with 8MB of memory, a 30MB hard disk and a VGA monitor should be sufficient.
#COMPUTER PROGRAM TOAST SOFTWARE#
Having made the wise decision of specifying the software first in the design phase, all that remains is to pick an adequate hardware platform for the implementation phase. (UNIX 8.3 should be out by the time the product gets to the market.) Users can pull down a menu and click on the foods they want to cook. Users click on it and the message 'Booting UNIX v. When the breakfast cooker is plugged in, users should see a cowboy boot on the screen. Users won't buy the product unless it has a user-friendly, graphical interface.
The lever that lowers the food lacks versatility and the darkness knob is confusing. Of course, users don't want the eggs to get cold while the bacon is frying, so concurrent processing is required, too. Specifically, we need an object-oriented language with multiple inheritance. In the design phase, we have discovered some derived requirements. Reviewing the process so far, we see that the analysis phase has revealed that the primary requirement is to cook any kind of breakfast food.
The semantics of this message depend, of course, on the kind of object, so they have a different meaning to a piece of toast than to scrambled eggs. At run time, the program must create the proper object and send a message to the object that says, 'Cook yourself'. Thus, we see that the problem cannot be properly solved without multiple inheritance. The ham and cheese omelet class is worth special attention because it must inherit characteristics from the pork, dairy and poultry classes. The specialization process should be repeated with grains divided into toast, muffins, pancakes and waffles pork divided into sausage, links and bacon and poultry divided into scrambled eggs, hard-boiled eggs, poached eggs, fried eggs, and various omelet classes. Specialize this class into subclasses: grains, pork and poultry. First, create a class of breakfast foods. With this in mind, we can formulate a more intelligent solution to the problem. If we don't look to the future, we will have to completely redesign the toaster in just a few years. A toaster that only makes toast will soon be obsolete. They will need a breakfast food cooker that can also cook sausage, fry bacon, and make scrambled eggs. As the subjects of your kingdom become more sophisticated, they will demand more capabilities. What you see before you is really a breakfast food cooker. He said, "Toasters don't just turn bread into toast, they are also used to warm frozen waffles. The second advisor, a computer scientist, immediately recognized the danger of such short-sighted thinking. Come back next week, and I'll show you a working prototype." At the end of the time delay, it would turn off the heat and pop up the toast. Then it would turn on the heating elements and start the timer with the initial value selected from the table. The program would use that darkness level as the index to a 16-element table of initial timer values. The engineer replied, "Using a four-bit microcontroller, I would write a simple program that reads the darkness knob and quantizes its position to one of 16 shades of darkness, from snow white to coal black. The king asked, "How would you design an embedded computer for it?" One advisor, an engineer, answered first. He showed them both a shiny metal box with two slots in the top, a control knob and a lever.
Once upon a time, in a kingdom not far from here, a king summoned two of his advisors for a test.
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