- A special memory subsystem in which frequently used data values are
duplicated for quick access. Cache memory is always faster than RAM.
- Card Services
- Under Windows 95, a protected-mode system component that is a VxD
linked with the PCMCIA bus driver. Card Services passes the event notification
from socket services to the PCMCIA bus driver, provides information from the
computer's cards to the PCMCIA bus driver, and sets up the configuration for
cards in the adapter sockets.
- Comite Consultatif Internationale de Telegraphie et Telephonie
(Consultative Committee for International Telephone and Telegraph). An
international standards organization dedicated to creating communications
protocols that will enable global compatibility for the transmission of voice,
data, and video across all computing and telecommunications equipment.
- Compact disc file system. Controls access to the contents of CD-ROM
- Compact Disc Interactive. A compact disc format (developed by NV Philips
and Sony Corporation) that provides audio, digital data, still graphics, and
- Compact disc read-only memory. A 4.75-inch laser-encoded optical memory
storage medium (developed by NV Philips and Sony Corporation) with the same
constant linear velocity (CLV) spiral format as compact audio discs and some
videodiscs. CD-ROMs can hold about 550 MB of data.
- chroma, chrominance
- 1. The color portion of the video signal that includes hue and
saturation information. Requires luminance, or light intensity, to make it
visible. 2. Hue is defined as tint. Saturation indicates the degree to
which the color is diluted by luminance (or by white light). Compare
- Component Instrumentation. A specification for DMI related to the service
- Commission International de l'Eclairage. The international commission on
illumination. Developer of color matching systems.
- Card information structure.
- For hardware, the manner in which devices and buses are grouped for
purposes of installing and managing device drivers and allocating resources.
The hardware tree is organized by device class, and Windows 95 uses class
installers to install drivers for all hardware classes.
- class driver
- A driver that provides system-required, hardware-independent support for
a given class of physical devices. Such a driver communicates with a
corresponding hardware-dependent port driver, using a set of system-defined
device control requests, possibly with additional driver-defined device
control requests. Under WDM, the class driver creates a device object to
represent each adapter registered by minidrivers. The class driver is
responsible for multiprocessor and interrupt synchronization.
- Cyan-magenta-yellow-black. A mixing model or method of describing colors
used with many printing systems. Uses subtractive primaries, starting with
white and subtracting percentages of cyan (blue), magenta (red), and yellow to
yield desired colors.
- Coder-decoder. A filter for data that manipulates it in some form, usually
by compressing or decompressing the data stream.
- color keying
- To superimpose one image over another for special effects.
- 1) Component Object Model; the core of OLE. Defines how OLE objects
and their clients interact within processes or across process boundaries.
2) Legacy serial port.
- compatibility mode
- An asynchronous, host-to-peripheral parallel port channel defined in the
IEEE 1284–1944 standard. Compatible with existing peripherals that attach to
the Centronics-style PC parallel port.
- composite video
- A signal that combines the luminance, chrominance, and synchronized video
information onto a single line. This has been the most prevalent NTSC video
- compressed video
- A digital video image or segment that has been processed using a variety
of computer algorithms and other techniques to reduce the amount of data
required to accurately represent the content and thus the space required to
store the content.
- The translation of data (video, audio, digital, or a combination) to a
more compact form for storage or transmission.
- To join sequentially.
- Configuration Manager
- The Windows 95 Plug and Play system component that drives the process
of locating devices, setting up their nodes in the hardware tree, and running
the resource allocation process. Each of the three phases of configuration
management—boot time (BIOS), real mode, and protected mode—have their own
- A negotiated method of communication between devices, whether implemented
in hardware or software.
- The range of light and dark values in a picture; or a measure of
brightness content in an image. The range between the lightest tones and the
darkest tones in an image.
- controllerless modem
- Also host-based controller. A modem that consists of a DSP without
the usual microcontroller. The host CPU provides the AT command interpreter,
modem-control functions, and v.42bis implementation. Compare with
- control method
- A definition of how an ACPI-compatible operating system can perform a
simple hardware task. For example, the operating system invokes control
methods to read the temperature of a thermal zone. Control methods are written
in an encoded language called AML. An ACPI-compatible system must provide a
minimal set of control methods in the ACPI tables. The operating system
provides a set of well-defined control methods that ACPI table developers can
reference in their control methods.
- In an RGB monitor, where red, green, and blue signals all converge in one
pixel. At full convergence, the RGB pixel would be white.
- Central processing unit. The computational and control unit of a computer;
the device that interprets and executes instructions. By definition, the CPU
is the chip that functions as the "brain" of the computer.
- Connection and Streaming Architecture. Kernel-mode streaming in WDM.
- Card Select Number. The handle created by the system BIOS or the operating
system through the isolation process and assigned as a unique identifier to
each Plug and Play card on the ISA bus.