Open Source Operating Systems

David Meador
Published on 19-Aug-2018 19:34:26
Open Source operating systems are released under a license where the copyright holder allows others to study, change as well as distribute the software to other people. This can be done for any reason. The different open source operating system available in the market are: Cosmos This is an open ... Read More

Real-Time Embedded Systems

Kristi Castro
Published on 17-Aug-2018 18:25:25
Real time systems are those systems that work within strict time constraints and provide a worst case time estimate for critical situations. Embedded systems provide a specific function in a much larger system. When there is an embedded component in a real time system, it is known as a real ... Read More

Dual-Mode and Multi-Mode Operation in Operating System

David Meador
Published on 17-Aug-2018 18:17:09
There are two modes of operation in the operating system to make sure it works correctly. These are user mode and kernel mode. A diagram that illustrates the transition from user mode to kernel mode and back again is as follows: The following are the modes: User Mode: ... Read More

Supervisor Mode (Privileged Mode)

Ricky Barnes
Published on 17-Aug-2018 18:11:38
Supervisor mode or privileged mode is a computer system mode in which all instructions such as privileged instructions can be performed by the processor. Some of these privileged instructions are interrupt instructions, input output management etc The privilege levels of different components in a system is given as follows: ... Read More

User Mode vs Kernel Mode

Alex Onsman
Published on 17-Aug-2018 17:07:02
There are two modes of operation in the operating system to make sure it works correctly. These are user mode and kernel mode. They are explained as follows: User Mode The system is in user mode when the operating system is running a user application such as handling a ... Read More

Operating System Structure

Kristi Castro
Published on 17-Aug-2018 16:58:48
An operating system is a construct that allows the user application programs to interact with the system hardware. Since the operating system is such a complex structure, it should be created with utmost care so it can be used and modified easily. An easy way to do this is to ... Read More

Beowulf Clusters

David Meador
Published on 17-Aug-2018 16:48:40
A beowulf cluster is formed using normal computers that are identical. These are arranged into a small local area network (LAN). There are programs that allow these computers to share processing among them.So beowulf clusters form a parallel processing unit using common personal computers.An image that displays the first beowulf ... Read More

Symmetric Multiprocessing Architecture

Ricky Barnes
Published on 16-Aug-2018 18:03:33
In symmetric multiprocessing, multiple processors work in parallel and share resources like system bus and memory. It is a type of multiprocessing system and much more complex than asymmetric multiprocessing system. Symmetric Multiprocessing Architecture The image depicting symmetric multiprocessing architecture is as follows: Some points explaining the above figure ... Read More

Storage Area Networks

Kristi Castro
Published on 16-Aug-2018 17:55:20
Storage Area Networks are typically used to provide access to data storage. These make sure that storage devices such as disks, tape drives etc. can be accessed by an operating system as system storage devices. Storage Area Networks are quite cheap and so are used both by large conglomerates and ... Read More

What is the difference between jQuery.animate() and jQuery.hide()?

David Meador
Published on 16-Aug-2018 17:47:51
jQuery animate() The animate( ) method performs a custom animation of a set of CSS properties. Here is the description of all the parameters used by this method: params − A map of CSS properties that the animation will move toward. duration − This is optional parameter representing how ... Read More