Many early computer systems do not have any form of hardware abstraction.

The hardware abstraction layer is written in C++ and runs in protected mode.

Much of the stability was gained by the use of protected memory and the hardware abstraction layer.

They provide a small set of simple hardware abstractions and use applications called servers to provide more functionality.

Windows has been designed from the ground up around a hardware abstraction layer intended to allow it to work on different hardware architectures.

Mach provides basic hardware abstraction, memory allocation, process management (including threads), and interprocess communication.

With hardware abstraction, the program instead tells the operating system what the device should do, and the operating system gives the instruction.

TinyOS programs are built out of software components, some of which present hardware abstractions.

In particular hardware abstraction does not involve abstracting the instruction set, which generally falls under the wider concept of portability.

HAL (software), an implementation of a hardware abstraction layer for Unix-like systems.

- Defines the Hardware Abstraction Layer that is loaded at startup.

Driver support was lacking due to the increased programming difficulty in dealing with NT's superior hardware abstraction model.

The first implementations of Cg were rather restrictive, due to the hardware abstraction, but they were innovative when compared to previous methods.

HAL (hardware abstraction layer) device: For devices supporting hardware acceleration.

A concrete example comes from HAL, a hardware abstraction layer for Unix-like operating systems.

This interface is normally done by a Device Driver or Hardware Abstraction Layer.

Hardware abstractions are sets of routines in software that emulate some platform-specific details, giving programs direct access to the hardware resources.

Other architectures based on Hardware Abstraction Layer or exokernels could move the drivers out of the microkernel.

DirectSound and therefore, DirectMusic lack hardware abstraction and are emulated in software.

They provide both higher hardware abstraction and a more flexible programming model than previous paradigms which hardcoded transformation and shading equations.

The NetBSD operating system is widely known as having a clean hardware abstraction layer which allows it to be highly portable.

Remember the old Hardware Abstraction Layer (HAL)?

The BSD kernel manages its own memory and processes and does its own hardware abstraction.

RAVE was a thin hardware abstraction layer similar to DirectX's Direct3D.

The idea was to have a common code base with a custom Hardware Abstraction Layer (HAL) for each platform.