| A | B |
|---|
| Ergonomics | Itis the study of the relationship between humans and the objects that we use. |
| Ergonomists | They are people who study human anatomy in order to determine how the objects that we use can be made safer, more comfortable, and more efficient. |
| Mainframe | It is large enough to fill several rooms. These computers are used by thousands of people at the same time in organizations such as government agencies. |
| Minicomputer | It can be used by several people, even up to hundreds of people at once. |
| Laptop | This computer is designed to be carried from place to place. |
| PDA | It is a computer that is small enough to hold in ones hand. |
| PDAs | With ____________, people can track appointments, store addresses, and keep notes. |
| Peripheral | Anything connected to your computer is considered a_____________. |
| PC | Computer is used by one person at a time. |
| Input devices | Used to put information into a computer. |
| Keyboard | It is used to enter information in the form of words, numbers, and punctuation. |
| Mouse | You use it to control objects you see on a computer screen. |
| Mouse | By using it you can point to objects, select objects, and move objects. |
| Mouse | It allows you to open programs, delete files, and create new folders. |
| A scanner | It collects information in the form of pictures. |
| A joystick | It is an input device that usually has buttons that can be pressed to send instructions to the computer. |
| A microphone | It can be used to input audio such as music into a computer. |
| A digital camera | It captures photographs as digital files that can be uploaded directly to a computer. |
| A port | It allows users to connect external input devices to the computer system. |
| An output | This device carries information out of a computer. |
| Monitor | It is also called a computer screen. |
| Monitor | It displays information visually, just like a television set. |
| Printer | You can use it to transfer images from a monitor to paper. |
| A speaker | It carries information in the form of sound. |
| Speakers | They can output music, speech, and noises. |
| The microprocessor | It is the brain of a computer. |
| A processors clock speed | It is the number of calculations the processor can do each second. |
| CPU | Central Processing Unit |
| Memory | It is where computers keep their information and it comes in the form of computer chips. |
| RAM | It holds information temporarily. |
| RAM | Random Access Memory |
| Hard drive | It is the most widely used secondary storage device. |
| ZIP disk | It has a portable disk inside a plastic case and holds 100 to 750 megabytes. |
| Flash | The memory which uses chips to hold information. |
| CD-ROM | A ___________ is an optical disk that can hold up to 1 gigabyte of information. |
| DVD-ROM | It can hold up to 17 gigabytes of information. |
| CD-R | A _________, which stands for Compact Disk-Recordable, is a CD-ROM that does not yet contain any information. |
| CD-RW | A ________ is an optical disk that can record information many times. |
| A network | A group of computers that are connected to each other. |
| Local Area Network | It is a connected group of computers that are close to one another. |
| Wide Area Network | It is a connected group of computers that are not close to each other. |
| NIC | Network Interface Card |
| Router | It connects multiple computers to each other as well as to a WAN like the Internet. |
| Server | It manages the flow of information on a network. |
| Topology | A network ___________ is the actual arrangement of computers in a network. |
