TECH-TADKA

             The KERNAL was initially written for the Commodore PET by John Feagans, who introduced the idea of separating the BASIC routines from the operating system. It was further developed by several people, notably Robert Russell added many of the features for the VIC-20 and the C64.
             In computing Kernal is the main component of most operating system. The kernal also known as the heart of an OS.It is working as a bridge between the application and the actual data processing done at the hardware level.
            As a collection of programs written in 'C language'  that directly interact with hardware and most of manages the task like memory management , task scheduling, process management, Device management and file management, etc ....but the kernal is a program that constitutes the central core of the computer OS.It has complete control over everything that occurs in the system.
           When the system starts, the kernal is being first loaded into the memory during the boot time and it should be remains their for the entire duration of the computer session, because the services of the kernal requires continuously. The kernal is the part of OS which is responsible for all other operations.
           Unix kernal is directly above the hardware kernal manages all hardware  devices and controls programs run on the computer it is loaded into the memory when system is booted.

How Kernal works?

          The kernal itself does not interact  directly with the user but rather interacts with the shell and other programs as well as with the hardware device on the system including the CPU, Memory and Disk drive.
A kernal can be contrasted with a, which is the program that interacts with user commands.
       

                 What is Cloud computing?

Cloud computing is the use of computing resources like hardware and software which are available on the remote location and accessible over a network.
In cloud computing, the word cloud is used for "the internet" and computing  means " a type of internet-based computing".
Here  in cloud computing there is no any local servers or hardware to handle the application.
         


It should be runs through Interface software.All heavy lifting done by the web based services and the third party services holds all information like :
                             - Software       - Saved data       - Security                                                                              
                                                                       The cloud computing is used in online email services, storing online data.Cloud computing networks are large groups of servers and cloud service providers that usually take advantage of low-cost computing technology, with specialized connections to spread data-processing chores across them.  Virtualization techniques are often used to maximize the power of cloud computing.

Their are different types of cloud are their as below....

1) Public Cloud   : A public cloud can be accessed by any subscriber with an internet connection and access to the cloud space.

2) Private Cloud : A private cloud is established for a specific group or organization and limits access to just that group.

3)Community Cloud : A community cloud is stored among two or more organizations that have similar cloud requirements.

4) Hybrid Cloud : It is essentially a combination of at least two clouds, where the cloud included are mixture of public , private and community.

Some of the advantages of the cloud computing

- Unlimited, everywhere access
- Reduction in hardware and software cost.
- No physical space in office or home.
- Increase the computing process.
- Automatic redundancy.

Some of the disadvantages of the cloud computing

-  Change is hard.
-  Security & privacy
     -- User don't physically have data.
     -- Storage cloud be hacked.
-  Services Live and Die by their security reputation.
- Significally harder to infiltrate these system.

 Today I'm gonna talk about USB Drives.
I'll show you a simple trick to lock your USB drive without using any 3rd party software.
Most of the people doesn't like other people checking their personal files and folder on USB, including me. This insecure situation creates a huge space to theft our personal data by someone. If you use password protection to your USB, you can reduce the data theft.

Lots of USB password protect software available in present market, but you want to pay money to use it for lifetime. If you're using Windows you don't need any software.

Classical Smiles

New chat smiles.... 

Just copy past and see the migic....   ;)