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K
Kerberos V5 authentication
protocol
An authentication
mechanism used to verify user or host identity. The Kerberos V5
authentication protocol is the default authentication service for
Windows 2000. Internet Protocol security (IPSec) and the QoS
Admission Control Service use the Kerberos protocol for
authentication.
kernel
The core of layered
architecture that manages the most basic operations of the operating
system and the computer's processor. The kernel schedules different blocks
of executing code, called threads, for the processor to keep it as busy as
possible and coordinates multiple processors to optimize performance. The
kernel also synchronizes activities among Executive-level subcomponents,
such as I/O Manager and Process Manager, and handles hardware exceptions
and other hardware-dependent functions. The kernel works closely with the
hardware abstraction layer.
key
In Registry Editor, a
folder that appears in the left pane of the Registry Editor window. A key
can contain subkeys and value entries. For example, Environment is a key
of HKEY_CURRENT_USER.
In IP security (IPSec), a
value used in combination with an algorithm to encrypt or decrypt data.
Key settings for IP security are configurable to provide greater
security.
Key Distribution Center
(KDC)
A network service that
supplies session tickets and temporary session keys used in the Kerberos
V5 authentication protocol. In Windows 2000 and Windows XP, the KDC runs
as a privileged process on all domain controllers.
keyboard
language
The language you want to
use when you type. Some programs that are designed for the Windows
platform recognize this setting. When you add a new keyboard language, a
keyboard layout for that language is also added.
keyboard
layout
The arrangement that
accommodates the special characters and symbols used in different
languages. Keyboard layouts affect which characters appear when you press
the keys on your keyboard. After you change your keyboard layout, the
characters that appear on your screen may no longer correspond to the
characters that are printed on your keyboard
keys.
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