22-12-2014, 09:55 AM
request / requirement about operating system for 7th sem ece vtu lecturer notes pdf
request / requirement / comment about operating system for 7th sem ece vtu lecturer notes pdf
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operating system for 7th sem ece vtu lecturer notes pdf
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request / requirement about operating system for 7th sem ece vtu lecturer notes pdf
request / requirement / comment about operating system for 7th sem ece vtu lecturer notes pdf
05-04-2017, 03:18 PM
An operating system (OS) is system software that manages the hardware and software resources of the computer and provides common services for computer programs. All computer programs, excluding firmware, require an operating system to operate. Time sharing operating systems plan tasks for efficient system use and may also include accounting software for allocating processor time, mass storage, printing, and other resources.
For hardware functions such as input and output and memory allocation, the operating system acts as an intermediary between the programs and the hardware of the computer, although the application code is usually executed directly by the hardware and often makes calls from the computer. System to an OS function or is interrupted by that. Operating systems are found on many devices that contain a computer - from cell phones and video game consoles to web servers and supercomputers.
The dominant desktop operating system is Microsoft Windows with a market share of around 83.3%. MacOS of Apple Inc. occupies the second place (11.2%) and the varieties of Linux occupy the third position (1,55%). In the mobile sector (smartphones and combined tablets), according to data for the third quarter of 2016, Google Android dominates with 87.5 percent and a growth rate of 10.3 percent a year, followed by iOS by Apple with 12 , 1 percent and a decrease per year in the market of 5.2 percent, while other operating systems amounted to only 0.3 percent. Linux distributions are dominant in the server and supercomputer sectors. There are other specialized classes of operating systems, such as embedded and real-time systems, for many applications.
For hardware functions such as input and output and memory allocation, the operating system acts as an intermediary between the programs and the hardware of the computer, although the application code is usually executed directly by the hardware and often makes calls from the computer. System to an OS function or is interrupted by that. Operating systems are found on many devices that contain a computer - from cell phones and video game consoles to web servers and supercomputers.
The dominant desktop operating system is Microsoft Windows with a market share of around 83.3%. MacOS of Apple Inc. occupies the second place (11.2%) and the varieties of Linux occupy the third position (1,55%). In the mobile sector (smartphones and combined tablets), according to data for the third quarter of 2016, Google Android dominates with 87.5 percent and a growth rate of 10.3 percent a year, followed by iOS by Apple with 12 , 1 percent and a decrease per year in the market of 5.2 percent, while other operating systems amounted to only 0.3 percent. Linux distributions are dominant in the server and supercomputer sectors. There are other specialized classes of operating systems, such as embedded and real-time systems, for many applications.
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