BasketBall

Baketball is a game that is of great popularity in USA.But unfortunatly this game has not found any
fame in India.This mind-game can be one of the greatest past time and can also be a greatest sport for a player.
Basketball was intially played with a football. But later this game gained popularity that a seperate ball has been found for this game.
Dribbling is the most basic of a basketball game.You cannot move in the court without dribbling.
Dribbling means bouncing the ball back and forth between the ground and the hand.
Most importantly this is a team game.
When you work as a team then you are sure to win this game easily.
Michael Jordan is one of the finest basketball player of all times.
He is known for his great leaps and he has been called as Air Jordan.
This game needs good physical fitness.
This game also gives good fitness.
So , Just try a game of basketball at any point in your life.
YOURS
SHYAM.

Chetan Bhagat's "five point someone".

five point someone
CHETAN BHAGAT's
This Indian Novel found shape frm the hands of an Indian Author.This book actually does not laud about IIT. Neither it tells what to do at IIT. It conveys the life around certain characters those who studied in IIT.It's a real life incident.
So it is centered around three characters Alok, Ryan and Hari.

I will add more to it...when I finish reading this book.

SPOOLING-OS SPOOFING-Internet

E-mail spoofing is a term used to describe fraudulent e-mail activity in which the sender address and other parts of the e-mail header are altered to appear as though the e-mail originated from a different source.




In Operating Systems,, spooling refers to a process of transferring data by placing it in a temporary working area where another program may access it for processing at a later point in time.


The most common spooling application is print spooling: documents formatted for printing are stored onto a buffer (usually an area on a disk) by a fast processor and retrieved and printed by a relatively slower printer at its own rate. As soon as the fast processor has written the document to the spool device it has finished with the job and is fully available for other processes.

The OS way

Operating System is one of the most interesting part of computer Technology.
Without an operating System there is no question for software development or any of the user interface.

The Big Boss lying under all this operating functions is the KERNEL.

Kernal is nothing but a set of programs lying in the disc the execution of these programs make the operating systems work.
Program Execution
Execution of a program from memory involves the creation of a process(assigning memory to program code and executing it).
Interrupts
The hardware or the application gives the indication about which part of the code has to be executed in the kernel.
Suppose, when we press the "A" key in keyboard then the operating system that is the kernel will receive an interrupt that would allow that to execute the code responsible for displaying "A".
This can be taken as an example for a hardware interrupt.

Memory Management:
It is process managing and allocating memory for various programs that is being executed by the kernel.
Virtual memory: Some application may want the program to always execute at a particular space in the memory.This work is being taken care of virtual memory.
What if the program is not loaded into the memory where it has to be loaded.It is nothing but a Page Fault.
Swapping can be used to overcome this page fault.

Scheduler is a small software program that can control the amount of time a program is executed in a particular memory.
The Scheduler swaps the control between the Kernel and the Program to make sure all the Programs are executed for a considerable amount of time and along with its own priority.
This action is called Context Switching.

Some scheduling techniques

1.FCFS(First come first first serve)
2.Shortest job first done
-Preemptive(Gives way for another)
-Non-preemptive(No way)
3.Priority Scheduling(based on Priority)
Starvation of low priority process
4.Round Robin Scheduling
w.r.t Timer
5.Multilevel Queue Scheduling
Round Robin with Multilevel Queues
6.Mutilevel Feedback Queue Schduling.
Mutilevel queue with Priority for each queue.

So let's learn "What is Caching"?
Cache contains all the frequently accessed data . Such data's are retrieved from the main memory and stored in the cache. The processer checks for the needed data in the cache. If the needed data is not present then the processer gets it from the main memory and stores it in the cache for future use.

Dining Philosopher's problem:


Consider the case where some philosophers had to dine together.
But the problem they have one fork on left and one fork on right.
But the food cannot be eaten with a single fork.So if all the phil's
are going to take the left fork at the same time then no one can eat.


The lack of available forks is an analogy to the lacking of shared resources in real computer programming, a situation known as Concurrency.

That is the shared resources are getting locked with no use for anyone.This results in a deadlock.

Semaphore is a variable count used in the method that controls and restricts access to shared resources for ex:as in the case of dining philosophers problem.

So this dining philosophers problem introduces to three technical Jargons.
CDS
Concurrency
Deadlock
Semaphores
This article will be updated.

Find the Origin of Origin

Get into this server

http://www.etymonline.com/

And explore the world of words.

Disaster Story

Aster means Star in Greek.

Disaster:
In Roman mythology it was believed that something bad happens because of the fault in their
zodiac stars.
And so came the word disASTER , which means something worst has happened.

Asterisk:
Asterisk * Doesn't that look like a star....and hence came the word ASTERisk.

Asteroids:
Star like objects in space.
so came the word....ASTERoids.

All People seem to need data processing.

The OSI (Open Syestem Interconnection) reference model was proposed by ISO (InternetionalStandard Organisation) in 1984.
The standard protocols make use of any of those layers of OSI reference model to establish connection between computers.
The reference layers are
Application layer- Presentation Layer- Session layer- Transport layer-
Network Layer-Data Layer- Physical Layer.
So the Mnemonic is "All People Seem To Need Data Processing".
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Please visit other interesting labels like English and Evolving Etymology.Please do comment to make this blog a better one.
With regards ,
Shyam.