www.cryer.co.uk
Brian Cryer's Web Resources

Glossary of IT Terms beginning with "H"

Brian Cryer's Glossary of IT Terms with Links. Definitions and links to further information on IT related terms ...

H1
Header 1 / First half of the year, details ...
H2
Header 2 / Second half of the year, details ...
HAGD
Have a good day, details ...
HAGW
Have a good week, details ...
HAL
Hardware Abstraction Layer / The computer in "2001: A Space Odyssey", details ...
Half Duplex
Simultaneous send and receive of data but at different speeds, details ...
HASP
Hardware Against Software Piracy / Health And Safety Plan, details ...
HD
Hard Disk / High Density / High Definition, details ...
HDD
Hard disk drive / Hybrid Disk Drive, details ...
HDLC
High-level Data Link Control, details ...
HDMI
High-Definition Multimedia Interface, details ...
HDTV
High Definition Television, details ...
HEC
Header Error Control / Harsh Environment Computer, details ...
Hectare
Metric unit of area, details ...
Heuristic
A rule of thumb for solving a problem, details ...
Hex
Hexadecimal / Hexagon, details ...
HGP
Human Genome Project, details ...
HIDS
Host based Intrusion Detection System, details ...
Hipaa
Health Insurance Portability and Accountability Act, details ...
Hive
Windows registry sub-tree, details ...
HKCR
HKEY_CLASSES_ROOT, details ...
HKLM
HKEY_LOCAL_MACHINE, details ...
HMI
Human Machine Interface, details ...
HOLAP
Hybrid OLAP, details ...
Hot Standby Server
Second server ready to take over from a primary, details ...
HPC
High Performance Computing / Handheld PC, details ...
HPFS
High Performance File System, details ...
HPGL
Hewlett Packard Graphics Language, details ...
HPGL/2
Newer version of HPLG, details ...
HR
Human resources / Hour, details ...
Hrs
Hours, details ...
HSB
Hue, Saturation, Brightness, details ...
HSDPA
High-Speed Downlink Packet Access, details ...
HSV
Hue, Saturation, Value, details ...
HT
Abbreviation for Hyper-Threading, details ...
HTH
Hope This Helps, details ...
HTML
Hyper Text Mark-up Language, details ...
HTTP
Hypertext Transfer Protocol, details ...
HTTP Proxy
A proxy that serves up web pages from an external network (such as the internet), details ...
HTTP-R
Reliable HTTP, details ...
HTTPS
Hypertext Transmission Protocol Secure, details ...
Hub
Device for connecting multiple computers on a network, details ...
Hungarian Notation
Naming convention where variable names indicate their data type, details ...
HVA
High Value Asset, details ...
HVAC
Heating Ventilation and Air Conditioning, details ...
HW
Hardware / Hand written, details ...
Hyper-Threading
Intel technology for executing parallel threads on a single processor, details ...
HyperThreading
Same as Hyper-Threading, details ...
Hz
Hertz (complete cycle), details ...