Laptops typically use _____ that are typically located outside the system unit.

5-1Chapter 5The System UnitStudent Learning Objectives•Learning ObjectivesoDifferentiate between the five basic types of system units.oDescribe system boards, including sockets, slots, and bus lines.oRecognize different microprocessors, including microprocessor chips andspecialty processors.oCompare different types of computer memory, including RAM, ROM, and flashmemory.oExplain expansion cards and slots.oDescribe bus lines, bus widths, and expansion buses.oDescribe ports including standard and specialized ports.oIdentify power supplies for cell phones, tablets, laptops, and desktops.oExplain how a computer can represent numbers and encode characterselectronically.Chapter Outline•System UnitoAlso known as the system chassis, is a container that houses most of theelectronic components that make up a computer systemoA personal computer is the most widely used type of computer.▪Most affordable▪Designed to be operated directly by an end useroThere are five most common types of personal computers:▪Smartphones- Almost every cell phone is a smartphone, most populartype of personal computer.•They are effectively a thin slab that is almost all monitor, with thesystem unit, secondary storage, and all electronic componentslocated behind the monitor.▪Tablets, tablet computer -very similar to cell phones, although tabletsare larger, heavier, and generally more powerful•Not designed to be used as a phone and, typically, cannot beconnected to phone networks•Mini tablets - type of tablet with a smaller screen, operate like atraditional tablet but may not have all the functionality of thebigger tablets▪Laptops- like cell phones and tablets, laptops have their system unitshoused with selected secondary storage and input devices. Laptops,however, are larger and more powerful.•Larger monitor separate from the rest of the computer, attached tothe system unit with a hinge.•Specialized laptopsoTwo-In- laptops- touch screen and folds flat like a tabletoGaming laptops- high-end graphics hardware and veryfast processors

System UnitThe system unit, also known as the system chassis, is a container that houses most of theelectronic components that make up a computer system. Some system units are located in aseparate case, whereas others share a case with other parts of the computer system.As we have previously discussed, a personal computer is the most widely used type ofcomputer. It is the most affordable and designed to be operated directly by an end user. The fivemost common types are desktops, laptops, tablets, smartphones, and wearable computers.Each has a unique type of system unit.DesktopsThis is the most powerful type of personal computer. Most desktops have their system unit in aseparate case. This case contains the system’s electronic components and selected secondarystorage devices. Input and output devices, such as a mouse, keyboard, and monitor, are locatedoutside the system unit. This type of system unit is designed to be placed either horizontally orvertically. Desktop system units that are placed vertically are sometimes referred to as a towerunit or tower computer. (See Figure 5-1.)LaptopsAlthough typically not as powerful as desktops, laptops are portable and much smaller. Theirsystem units are housed with selected secondary storage devices and input devices (keyboardand pointing device). Located outside the system unit, the monitor is attached by hinges.There are several specialized laptops with features that make them unique. Some of them areTwo-in-one laptops, which include a touch screen and the ability to fold flat like a tabletcomputer. These laptops offer the advantages of a laptop with the convenience of a tablet. (SeeFigure 5-3.)Gaming laptops, which include high-end graphics hardware and very fast processors. At onetime, most gamers preferred desktop computers. As laptops have become more powerful,gaming laptops have become a favorite, primarily due to their portability. To learn more aboutspecialized gaming computers, see the Making IT Work for You: Gaming on pages 110 and 111.Ultrabooks, also known as ultraportables or mini notebooks, which are lighter and thinner withlonger battery life than most laptops. They accomplish these advantages by leaving outcomponents such as optical drives and using energy-efficient microprocessors. (See Figure 5-4.)TabletsTablets, also known as tablet computers, are the newest and one of the most popular types ofcomputers. They are effectively a thin slab that is almost all monitor with the system unit locatedbehind the monitor.Tablets are smaller, lighter, and generally less powerful than laptop computers. Like a laptop,tablets have a flat screen, but typically do not have a standard keyboard. Instead, most tabletsuse a virtual keyboard that appears on the screen and is touch sensitive. Although tablets arevery convenient for watching videos or surfing the web, inputting information can be difficultusing their virtual keyboard. Some ways to overcome this limitation are withKeyboard attachments. Several manufacturers are offering keyboard options. For example,Apple and Logitech offer wireless keyboards for tablets.

Which of the following is located outside the system unit?

Which of the following can be used to connect several devices to the system unit?

Which of the following ports is the port found on most laptops and desktops?

Which are commonly used units of measurement to describe memory capacity except?