CLB Lesson 5: Computer Hardware

3. Understanding only two states--off and on, represented by 0 and 1.
4. Technology that manipulates light within a layer of liquid crystal cells to produce an image.
9. An input device that scans the codes stored in an RFID tag.
10. Storage device that uses lasers to read and write data on plastic platters.
11. Smallest surface area that can contain color in a display device; short for picture element.
12. Physical materials used to store data, such as disks and DVDs.
13. Sequence of electronic circuitry used to transfer data among computer components.
15. Common type of bus that you can connect 127 different device to a single USB port.
16. Number of pixels displayed on the screen.
17. Measurement that determines how much data the storage device can move per second from the storage media to the computer.
20. Hardware that records and retrieves data from storage media.
21. Average number of milliseconds it takes a computer to retrieve data from the storage device.
22. Connector located in the system case that you use to plug peripheral devices into the computer.

1. Main storage device in a computer, also called the hard disk drive.
2. Smallest unit of data a computer can process; short for binary digit.
5. Circuit board that can be plugged into an expansion slot on the motherboard.
6. Security technique using automated methods of recognizing a person based on a physical characteristic.
7. Hardware or other product designed to provide comfort and avoid stress to the human body during usage.
8. Storage method that allows a data retrieval mechanism to quickly find data.
14. Ratio of width to height on a computer display.
18. Type of hard drive that uses flash memory technology to store data rather as electrical than magnetic charges.
19. Bus standard developed by Apple as a high-speed method for connecting multimedia devices such as video cameras to the computer.