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Define how operating system is a control program?
operating system is a control program as it allow multiple task to performed on same window.
What is General characteristics of optimal operating system?
What exactly do you mean by 'optimal operating system'? If you don't define the term there is no way to answer the question.
Can you define dos briefly?
DOS is short for disk operating system.
What are policies that define specific operating system functions?
User Rights
What is the difference between mode and state?
States define an exact operating condition of a system, where modes define the set of capabilities or functions which are valid for the current operating condition. (Source: http://themanagersguide.blogspot.com.au/2011/01/6322-define-life-cycle-system-modes.html)
Define the relationship between operating system software and utility software?
Operating system software .....OPERATES !! and utility software....UTILIZES !! ..now go do your research .
What does POSIX real time Thread specification define?
"Portable Operating System Inferance (for Unix)
Define NFS in operating system?
NFS is the Network File System, and allows directories from systems to be used in other systems in a sharing arrangement.
How does an operating system affect the look and feel of an application software?
An operating system typically provides user interface tools, such as menus and toolbar buttons that define the "LOOK AND FEEL" for all of its compatible software.
Define the role of C programming in the development of software?
All operating system are made using c-based language.
Define RAW file system?
Raw file system is a situation where the extension of your file system files has been deleted and the operating system can't recognize the particular volume and access the data from it.
Define the essential properties what types of operating system Batch?
Jobs with similar needs are batched together and run through the computer as a group.
