Embedded System Terminology - H
| Half Duplex - An I/O communications scheme in which a data stream can be transmitted and received in either direction, but in only one direction at any one time. |
| Handshaking - The process in which protocols are adhered to by components on a board or devices over a network that want to initiate and/or terminate communication. |
| Hard Real Time - Describes a situation in which timing deadlines are always met. |
| Hardware - All of the physical components of an embedded system. |
| Harvard Architecture - A variation of the von Neumann model of computer systems, which differs from von Neumann in that it defines separate memory spaces for data and instructions. |
| Heap - A portion of memory used by software for dynamic allocation of memory space. |
| Heat Sink - A component on a board that extracts and dissipates heat generated by other board components. |
| Henry - The unit of measurement for inductance. |
| Hertz - The unit of measurement for frequency in terms of cycles per second. |
| High-Level Language - A programming language that is semantically further away from machine language, more resembles human language, and is typically independent of the hardware. |
| Hit Rate - A cache memory term indicating how often desired data is located in cache relative to the total number of times cache is searched for data. |
| Host - The computer system used by embedded developers to design and develop embedded software; it can be connected to the embedded device and/or other intermediary devices for downloading and debugging the embedded system. |
| Hysteresis - The amount of delay in a device’s response to some change in input. |
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Related topics:
Embedded System Architecture | Embedded Hardware Architecture | Embedded Software Architecture | Embedded Software Definition | Embedded System Acronyms | Embedded System Symbols
List of topics: Embedded System
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