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Chapter 2 Pacs
Digital Radiography & PACS
| Question | Answer |
|---|---|
| Aspect Ratio | a ratio of the width of the monitor to the height of the monitor |
| Binary Code | machine language of 1s and 0s |
| Basic Input/Output System (BIOS) | contains a simple set of insructions for the computer to perform several basic function, sucj as boot up, run hardware diagnostics, interpret keyboard singal, and so on |
| Bit | Single Unit of Data |
| Bus | series of connections, controllers, and chips that creates the information highway of the computer |
| Byte | made of 8 bits and is the amount of memory needed to store one alphanumeric character |
| Central Processing Unit (CPU) | Small Chip found on the motherboard that manipulates data sent from a program, brains of the computer |
| Complementary Metal Oxide Semiconductor (CMOS) | Speical type of memory chip that uses a small rechargable or lithium battery to retan informatin about the PC's hardware while the computer is turned off |
| Computer | programmable electronic device that can store, retrieve, and process data |
| Dot Pitch | measurement of how close the dots are located to one another within a pixel |
| Hard Drive | main repository for programs and documents on the computer |
| Matrix | rectangular or square table of numbers that represent the pixel intensity to be displayed on the montior |
| Memory | used to store information being currently processed within the central processing unit |
| Motherboard | large circuitry board inside the computer, it contains many important small components to make the computer function properly |
| Operating System (OS)` | Software that controlthe computer hardware and acts as a bridge between applications and the hardware |
| Pixel | baic picture element on a display |
| Port | Collection of connectors sticking out of the back of the computer that links adapter cars, drive, printer, etc |
| Power Supply | delivers all electricity and provides connection to power devices in the computer |
| Refresh Rate | measure of how fast the monitor rewrites the screen or the number of times that the image is redrawn on the display each second |
| Resolution | number of pixels contained on a display |
| Viewablw Area | measures from one corner of the display to the opposite corner diagonally |
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