Siemens SIMATIC IPC647D Operating Instructions Manual page 207

HORM
Hibernate once, resume many is a method for fast booting from a single Hibernate file that
only needs to be created once. HORM ensures restoration of a uniform, saved system state
when booting. This reduces the writing to a CompactFlash medium to a minimum, for
example, when starting up and shutting down Windows Embedded Standard 2009.
Hot swap
The SATA interface gives the device's hard drive system hot swapping capability.
Prerequisite for this configuration is a RAID1 system with SATA RAID controller (onboard, or
slot module), and at least two SATA removable drive bays. Advantages of hot swap:
defective hard drives can be replaced without reboot.
Hub
A term in network technology. In a network, a device joining communication lines at a central
location, providing a common connection to all devices on the network.
Hyper Threading
HT technology (multi-threading) enables the parallel computing of processes. HT is only
effective when all relevant system components, such as processors, operating systems and
applications are supported.
IGD
Integrated Graphics Device. Graphics interface integrated in the chipset.
Image
This refers to the image, for example, of hard disk partitions saved to a file in order to restore
them when necessary.
Intel Active Management Technology
This technology permits the diagnostics, management and remote control of PCs. It is only
effective when all relevant system components, such as processors, operating systems and
applications are supported.
Intel VT
The Intel Virtualization Technology (IVT) is the implementation of a secure closed
environment for applications. Special (visualization) software an a VT-capable processor is
required for its use.
SIMATIC IPC647D
Operating Instructions, 01/2014, A5E32996306-AA
Glossary
207