Extended System Configuration Data (ESCD) is a memory on a computer motherboard that stores information about ISA PnP devices and is used by BIOS to allocate resources for expansion cards. Whenever the hardware configuration changes, the BIOS updates ESCD, and this does not have to be repeated until the next change, resulting in faster start-up without conflicts. An ISA configuration utility can be used to update ESCD through PnP BIOS interfaces, and Microsoft Windows operating system device manager is an example of such a utility. The ICU configuration allows users to disable any hardware expansion card of the PC motherboard.
FAQ About ESCD
If you are wondering what ESCD is, you are not alone. Here are the most frequently asked questions about this aspect of nonvolatile BIOS memory:
What is Extended System Configuration Data or ESCD?
ESCD is a part of the nonvolatile BIOS memory on the motherboard of a personal computer that stores information about ISA PnP devices. It is used by the BIOS to allocate resources for devices such as expansion cards.
What are the benefits of using ESCD?
By using ESCD, the BIOS can make faster decisions about resource allocation for devices based on the hardware configuration. Updating the ESCD each time hardware configurations change, allows devices to start up faster without conflicts.
How can I update ESCD?
It is possible to update ESCD through PnP BIOS interfaces and an ISA configuration utility. The Microsoft Windows operating system device manager is an example of such a utility, and it allows changes to the configurations.
What is ESCD Used For?
ESCD is used by the BIOS to allocate resources for devices such as expansion cards. When a hardware configuration changes, such as the installation of a new expansion card, the processor determines how to find enough resources, such as interrupt request lines (IRQ) and memory allocation areas. Once the processor makes its determination, it updates the ESCD, and it can then allocate resources quickly and without conflict on subsequent starts.
The net result
In The net result, ESCD or Extended System Configuration Data is an essential part of the nonvolatile BIOS memory of a personal computer. It helps make faster decisions about resource allocation for devices based on hardware configurations, resulting in faster startup without conflicts. Updating ESCD through PnP BIOS interfaces and an ISA configuration utility provides quick and efficient solutions. By understanding the benefits, users can make informed decisions to keep their devices running effectively.
