Hewlett-Packard was one of the first companies to produce a laser printer for PCs, and most software products include drivers for HP printers. The drivers control the printers through a language called PCL (printer control language ). Other manufacturers of laser printers design their printers so that they, too, understand PCL, making them able to emulate HP printers. In this way, their printers are HP-compatible and are thus automatically supported by many software products.
No non-HP printer, however, is 100 percent HP-compatible. Manufacturers claim HP compatibility even if their printers only recognize a subset of PCL commands. Note also that there are different versions of PCL. A printer may be able to emulate an HP LaserJet Plus but not a LaserJet II. Finally, HP laser printers support font cartridges, and not all HP-compatible printers can accept the same cartridges.
Short for High-quality Video Compact Disc, HQ-VCD is enhancement to Video CD developed by a Chinese government-backed committee of manufacturers and researchers. This format was superseded by the SVCD specification.
Short for Human Resources Information System HRIS is a system used by human resources departments to track employees and information about them. A HRIS is often a database system or a series of inter-related databases.
Acronym for High Speed Downlink Packet Access. High Speed Downlink Packet Access, or HSDPA, is a packet based data service feature of the in WCDMA standard which provides a downlink with data transmission up to 8-10 Mbps (and 20 Mbps for MIMO systems) over a 5MHz bandwidth in WCDMA downlink. The high speeds of HSDPA […]
Short for Hierarchical Storage Management, a data storage system that automatically moves data between high-cost and low-cost storage media. HSM systems exist because high-speed storage devices, such as hard disk drives, are more expensive (per byte stored) than slower devices, such as optical discs and magnetic tape drives. While it would be ideal to have […]
Short for Hot Standby Routing Protocol, a proprietary protocol from Cisco. HSRP is a routing protocol that provides backup to a router in the event of failure. Using HSRP, several routers are connected to the same segment of an Ethernet, FDDI or token-ring network and work together to present the appearance of a single virtual […]