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A Glossary of Windows Terms – “J” and “K”

written by: Joli Ballew•edited by: Rebecca Scudder•updated: 12/31/2008

Windows terms that start with the letter “J” and “K” and are used often in the Bright Hub Windows channel.

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    Java – a high level programming language developed by Sun Microsystems. Small Java applications are called Java applets and are great for use on the Web.

    Java Server Page – JSP. Used as an alternative to Microsoft’s Active Server Pages (ASP). useful for creating dynamic web pages and storing those pages on a web server.

    Joystick – An input device often used to control video games. Joysticks can also be used as alternative input methods for the disabled. Joysticks generally connect to a PC through a USB or serial port.

    JPEG – A file format for digital images including photographs. JPEG files are generally smaller than other file type options, and thus take up less space on a hard drive.

    Jumper – a component on a motherboard that closes an electrical circuit.

    Junk Mail – Unwanted email. Junk email filters help reduce the amount of junk mail by deleting the mail before it enters the Inbox.

    Kerberos – The most widely used security authentication method used on computer networks. Kerberos is used to authenticate users.

    Kernel – A part of the operating system that is mainly responsible for memory management, disk management, and communicating with internal hardware.

    Keygen – Key Generator. An application that automatically generates product ID number, or registration or serial numbers for hardware and software.

    KeyLogger – A program that can record the keystrokes made on a computer. These programs are often deemed spyware, as the results are often used to spy on the user and find out what they are typing.

    Keystroke – The process of hitting one key on the keyboard.

    Keywords – Words or phrases that define or describe content. They are often used in metadata when organizing photos, videos, and similar digital content.

    Kilobit – 1,024 bits. Kilobits are often designated as kilobits per second, and represent data transfer rate.

    Kilobyte – 1,024 bytes, and a measurement of how fast data can be transferred.

    KVM – Keyboard, Video, Mouse switch. Hardware that allows you to purchase one keyboard, one mouse, and one monitor, and share this hardware among two to four computers. By flipping a switch, you can designate what computer has access to the hardware.