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| the parts you can actually touch |
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| the box that contains the central electronic components of the computer |
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| devices such as monitor and printers that are connected to the computer |
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| enables you to enter data (text, images,and sounds) and instructions (user responses and commands) into the computer |
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keyboards: to enter typed data and commamds
mouse: to enter user responses and commands |
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| regular (straight) keyboard |
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| a different set up for the keys for quicker typing (not as common as the QWERTY keyboard) |
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| allows you to enter numbers quickly |
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| act as shortcut keys you press to preform special tasks |
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| is used in combination with other keys to preform shortcuts and special tasks |
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| with other keys for additional shortcuts and special tasks |
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| is specific to the Windows operating system. Used alone, it brings up the start menu; however, it's used most often in combination with other keys as shortcuts. For ex. pressing the Windows key plus the E key starts Windows Explorer |
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| is optimized for playing specific video games |
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| the flashing I symbol on the monitor that indicates where the next character will be inserted |
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| will change the function each time you press it (some keys have multi functions) |
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| is basically a traditional mouse that has been turned on its back |
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| has instead of a roller-ball it uses an internal sensor or laser to detect the mouse's movement |
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| a small, joystick-like nub that allows you you to move the cursor with the tip of your fingers |
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| a touch sensitive screen at the base of the keyboard |
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| enable you to send processed data out of your computer. (can be the form of text, pictures, sounds, and video) |
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| monitor sometimes called display screen |
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| which displays text, graphics, and video |
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| which creates tangible or hard copies (copies you can touch) of text and graphics |
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| old standard (big) monitor |
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| liquid crystal display (LCD) |
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| flat monitor, such as found in notebooks (also flat-panel monitors) |
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| CRT monitors screens is a grid made up of millions of PIXELS (or tiny dots). Simply put, illuminated pixels are what create the images you see on your monitor. Pixel colors: red, green, and blue |
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| (sometimes referred to as vertical refresh rate) is the number of times per second the electron beam scans the monitor and recharges the illumination of each pixel. |
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| is controlled be the number of pixels displayed on the screen.the higher the resolution, thee sharper and clearer the image. A high end monitor may have a max. resolution of 1,600 x 1,200 meaning it contains 1,600 vertical columns with 1,200 pixels in each column. |
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| is the diagonal distance, measured in millimeters, between pixels of the same color on the screen. A smaller dot pitch means that there is less blank space between pixels and thus a sharper, clearer image. |
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| less expensive LCD monitors use passive-matrix displays. This technology uses an electrical current passed through the liquid crystal solution to charge groups of pixels, either in a row or a column. |
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| more expensive monitor use active-matrix displays. Each is charged individually, as needed. The result is that an active matrix display produces a clearer, brighter image with better viewing angles. |
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| are devices that are used to project images from your computer onto a wall or viewing screen |
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| have tiny hammer like keys that strike the paper through an inked ribbon, thus making a mark on the paper. The most common impact printer is the dot-matrix printer. |
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| don't have mechanisms that strike the paper. Instead, they spray ink or use laser beams to transfer marks onto the paper. the most common non-impact printers are ink jet printers. |
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| the first computer printers |
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| are quieter, faster, and offer higher-quality printouts. |
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| puts the monitor and computer in idle mode |
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