The amount of time, measured in in milliseconds that a power supply unit (PSU) can maintain output within the specified voltage range after a loss of input power. The hold-up time is thje amount of time that the system can continue to run without resetting or rebooting during a power interruption. Some power supplies may also includes a battery to maintain power in the event of a power outage. These are called an uninterruptible power supply.
In security terminology, a hole refers to a software or operating system vulnerability that could be exploited to compromise the overall security of the computer system or network on which the hole resides.
- holographic data storage
Holographic storage is a mass storage technology that uses three-dimensional holographic images to enable more information to be stored in a much smaller space. The technology uses holograms which are created when a light from a single laser beam is split into two beams; the signal beam (which carries the data) and the reference beam. […]
- home computer
A personal computer specially configured for use in a home rather than an office. Typically, home computers have only medium -power microprocessors, but are equipped with a full complement of multimedia devices. In addition, manufacturers often bundle recreational and educational software with home computers.
- home page
The main page of a Web site. Typically, the home page serves as an index or table of contents to other documents stored at the site.
- homogeneous register architecture
In homogeneous register architectures, the selection of an instruction has no connection whatsoever with the types of registers that the instruction uses. Selecting instructions for non-homogeneous register architectures usually requires allocating register types for the operands and resulting data. As a consequence, the IR patterns associated with instructions in this kind of processor should carry […]