Glossary - Index H

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Half Duplex: Data transfer that only sends or receives data to a node. Hubs commonly perform in half duplex mode.

Hard Code: The actual text used to create a computer program.

Hard Wired: This term is used to refer to actual pieces of your PC that are connected directly to the motherboard you can also hard wire your internet connection which will always be faster that wireless!

HDD: Hard Disk Drive - Also known as hard drive, it is a mechanical device used to store information on your computer. Information is stored on spinning discs magnetically. Usually your main hard drive is known as your "C" drive in Windows Explorer or My Computer.

HDMI cable: (High-Definition Multimedia Interface) is a compact audio/video interface for transmitting uncompressed digital data. It is a digital alternative to consumer analog standards, such as radio frequency (RF) coaxial cable, composite video, S-Video, SCART, component video, D-Terminal, or VGA. HDMI connects digital audio/video sources (such as set-top boxes, DVD players, Blu-ray Disc players, AVCHD camcorders, personal computers (PCs), video game consoles (such as the PlayStation 3, and Xbox 360), AV receivers, tablet computers, and mobile phones) to compatible digital audio devices, computer monitors, video projectors, and digital televisions.

Heatsink: Metal device used to cool processors and other components by means of convection or forced air.

Honeycomb: Honeycomb is an android based operating system originally released for tablets it is android tablets 3.0 version.3.0 Honeycomb was a tablet-oriented release which supports larger screen devices and introduces many new user interface features, and supports multi-core processors and hardware acceleration for graphics. The first device featuring this version, the Motorola Xoom tablet, went on sale in February 2011.
3.1 Honeycomb, released in May 2011, added support for extra input devices, USB host mode for transferring information directly from cameras and other devices, and the Google Movies and Books apps.
3.2 Honeycomb, released in July 2011, added optimization for a broader range of screen sizes, new "zoom-to-fill" screen compatibility mode, loading media files directly from SD card, and an extended screen support API. Huawei MediaPad is the first 7 inch tablet to use this version.

Hop: When accessing a WAN or Internet, data packets often have to travel through several places to reach it's destination, each place the packet lands on is called a hop.

Hot Plugging: The ability to add and remove devices to a computer while the computer is running and have the operating system automatically recognize the change. Two external bus standards -- Universal Serial Bus (USB ) and IEEE 1394 -- support hot plugging. This is also a feature of PCMCIA.

Hot Swapping: A method in which devices are plugged and unplugged into a computer, usually referring to USB, IEEE, 1394, and similar devices.

HSF: Heatsink and Fan combination.

HTML: HyperText Markup Language - The authoring language used to create documents on the World Wide Web. HTML defines the structure and layout of a Web document by using a variety of tags and attributes. This allows the HTML to be read as your reading this now, as a web page.

HTTPS: Hypertext Transfer Protocol Secure is a combination of the Hypertext Transfer Protocol (HTTP) with SSL/TLS protocol to provide encrypted communication and secure identification of a network web server. HTTPS connections are often used for payment transactions on the World Wide Web and for sensitive transactions in corporate information systems.

Hub: Network device that joins all the network devices centrally in a star configuration.

HyperTransport: An industry standard serial connection method pioneered by AMD for the internal connection of different buses inside of a PC or network device. It initially allows for connection speeds of up to 6.4GB/second. The first main consumer product using HyperTransport was the NVIDIA nForce2 chipset. AMD’s Opteron has up to three HyperTransport links, while the Athlon 64 has one.



Hz: Hertz - unit of measurement for Frequency.