Keystroke logging, often referred to as keylogging or Keyboard Capturing, is the action of recording (or logging) the keys struck on a keyboard, typically in a covert manner so that the person using the keyboard is unaware that their actions are being monitored.

A word of relatively great significance which is chosen to act as a key to search through digital text.

Keyword Planner is a free AdWords tool provides keyword ideas and traffic estimates to help you build a Search Network campaign. You can search for keyword and ad group ideas, get historical statistics, see how a list of keywords might perform and even create a new keyword list by multiplying several lists of keywords together. Keyword Planner can also help you choose competitive bids and budgets to use with your campaigns.

The practice of inserting a large number of keywords into Web content and meta tags in the attempt to artificially increase a page's ranking in search results and drive more traffic to the site. 

A series of handheld e-readers designed and marketed by Amazon.

The Kindle Paperwhite was released on October 1, 2012 in the United States. It has a 6", 212 ppi display with built-in light and has 2GB of storage. It is available in Wi-Fi and Wi-Fi + 3G models. The light is one of the main features of the Paperwhite, however the light level must be adjusted manually.

Kinect is Microsoft'smotion sensor add-on for the Xbox 360 gaming console. The device provides a Natural User Interface (NUI) that allows users to interact intuitively and without any intermediary device, such as a controller.

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A traditional measure of how large a computer program is or how long or how many people it will take to write it. The code measured is usually source code . 

K-Multimedia Player (also called as KMPlayer or KMP) is a media player developed by Kang Young-Huee for Windows operating system. The player can handles a wide range of audio, video and subtitle formats like VCD, DVD, AVI, MKV, Ogg, OGM, 3GP, MPEG-1/2/4, WMV, RealMedia, FLV and QuickTime. It also allows the users to audio, video and screenshots.

Knockout is a standalone JavaScript implementation of the Model-View-ViewModel pattern with templates.