Discuss the variety of shapes and sizes in which cases come for desktops, laptops, tablets, smartphones, portable media devices, and game consoles.
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Student responses will vary, but should be drawn from the following information from the text.
• The term, system unit or chassis, refers to the case on a desktop that contains and protects the motherboard, hard disk drive, memory, and other electronic components. Some desktops have a tower system unit that is a device separate from the monitor. Others that house the monitor and the system unit in the same case are called an all-in-one desktop. Peripheral devices normally occupy space outside the system unit and communicate with the system unit using wired or wireless technology.
• On most laptops, including ultrathin laptops, the keyboard and pointing device often occupy the area on top of the case, and the display attaches to the case by hinges.
• With a slate tablet, which typically does not include a physical keyboard, the case is behind the display. Keyboard options for slate tablets include an on-screen keyboard, a wireless keyboard, or a keyboard that attaches to the slate via a clip or other mechanism. On a convertible tablet, by contrast, the case is positioned below a keyboard, providing functionality similar to a laptop. The difference is that the display attaches to the case with a swivel-type hinge, enabling the user to rotate the display and fold it down over the keyboard to look like a slate tablet.
• Like a slate tablet, the case on a smartphone often is behind the display.
• The case on portable media players, digital cameras, and handheld game devices typically consumes the entire device and houses the display and input devices.
• With game consoles, the input and output devices, such as controllers and a television, reside outside the case.
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