host operating system


Also found in: Acronyms.

host operating system

The first OS installed in a computer. In a virtual machine environment, there may be a host operating system that interacts with the virtual machine monitor, which manages the virtual machines. Contrast with a "bare metal" hypervisor, in which the virtual machine monitor is the base operating system in the computer. For details, see virtual machine monitor.
References in periodicals archive ?
The typical solution of the problems is the use of the firewall and antivirus software installed in the host operating system (see Fig.
In a hosted environment, a type 2 hypervisor manages the virtual machines and interfaces with the host operating system to access resources (IBM Corp.
However, running tightly coupled applications on the native hardware host operating system (without virtual machines or other processes) should eliminate all but the communications latencies--at least as well as the current technology.
New features in Workstation 5 include the ability to connect multiple virtual machines together with configurable network segments to simulate and test complex multi-tier applications, cloning virtual machines so multiple users can share its base installation, and new 64-bit host operating system and processor support.
AppRadar also monitors for attackers trying to gain access to the host operating system through the database.
Much of Gilkes' confidence in SavaJe's software lies in the inherent security of Java, which provides the entire basis of the platform, allowing SavaJe-based devices to run without need of an underlying host operating system such as Windows Mobile or Symbian OS.
Unlike RAID-based systems, JBOD recorders are not limited by a host operating system.
The USB stack also enumerates USB devices and simulates a plug and play environment with the host operating system when the USB supports external devices.
Unlike other redundancy schemes for Gigabit Ethernet, the SysKonnect solution is completely independent of the host operating system, protocols used, or the brand of server.
Applications make use of the host operating system services as before and can now access remote resources through calls to the NOs System Services.
The new exclusive technology from Liquidware Labs solves the issue with layering regarding how applications within the layers interact with each other and the host operating system.