Personal Computers
There are four main types of personal computers: desktop computers, laptop or notebook computers, tablets and pads. In each generation of computers, desktop computers have the fastest processing speeds and the largest memories. Designed for stationary use in the home or office, they are able to feature larger screens, keyboards and system units, each of which is physically separate form the others and can be arranged on a desk- or tabletop as desired by the user. Desktop computers are normally connected to the Internet through a wired Ethernet connection. The next most powerful type of computer is the laptop or notebook computer. Designed for mobile use in many different locations, they are relatively light and compact, though they vary in size, some having screens nearly as large as those belonging to desktop computers and others having screens nearly as small as those belonging to electronic dictionaries. The components of this type of computer are permanently connected. The keyboard and system unit form the base while the screen folds against the base for carrying and away from the base for use. Laptop or notebook computers can be connected to the Internet through an Ethernet connection or a wireless connection. In some ways as powerful as laptop computers, tablets resemble detached laptop screens which may or may not have a folding cover. The screen and system unit are contained in one housing and the keyboard is displayed on the screen. A physical keyboard may also be connected to the tablet by cable or Bluetooth. Pads resemble pocket-sized tablets the same size as or not much bigger than cell phones. Because of their small size, they are much less powerful than tablets, notebooks and desktop computers, but they are much more portable. It is not uncommon for computer users to own and make regular use of two or more types of computer in order to meet their needs for power and portability. (321)
คอมพิวเตอร์ส่วนบุคคลThere are four main types of personal computers: desktop computers, laptop or notebook computers, tablets and pads. In each generation of computers, desktop computers have the fastest processing speeds and the largest memories. Designed for stationary use in the home or office, they are able to feature larger screens, keyboards and system units, each of which is physically separate form the others and can be arranged on a desk- or tabletop as desired by the user. Desktop computers are normally connected to the Internet through a wired Ethernet connection. The next most powerful type of computer is the laptop or notebook computer. Designed for mobile use in many different locations, they are relatively light and compact, though they vary in size, some having screens nearly as large as those belonging to desktop computers and others having screens nearly as small as those belonging to electronic dictionaries. The components of this type of computer are permanently connected. The keyboard and system unit form the base while the screen folds against the base for carrying and away from the base for use. Laptop or notebook computers can be connected to the Internet through an Ethernet connection or a wireless connection. In some ways as powerful as laptop computers, tablets resemble detached laptop screens which may or may not have a folding cover. The screen and system unit are contained in one housing and the keyboard is displayed on the screen. A physical keyboard may also be connected to the tablet by cable or Bluetooth. Pads resemble pocket-sized tablets the same size as or not much bigger than cell phones. Because of their small size, they are much less powerful than tablets, notebooks and desktop computers, but they are much more portable. It is not uncommon for computer users to own and make regular use of two or more types of computer in order to meet their needs for power and portability. (321)
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