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Write a program to simulate the operation of a hard drive. The hard drive is to be simulated by creating a file called 'HardDrive'. This contains 256 'sectors', each 128 bytes long. This means that the file is 32 kilobytes in size.
To create the HardDrive file, you should write a separate function. Declare an array of 128 characters, fill it up with spaces, open the 'HardDrive' file in write mode, and write the array 256 times to the file. Then close the file.
Next create two data files of your own choice (I suggest you create a short one and a longer one). Open the HardDrive file in O_RDWR mode. Write the files onto the HardDrive, one sector at a time. This requires use of the 'lseek' and 'write' system calls. Make sure to choose their positions within the HardDrive in such a way that they don't overlap, and don't run off the end! Once this has been done (for both files), read them back from the HardDrive, and display their contents on the screen. The result should, of course, be the same as the original files. Please note that the last sector of each file requires special treatment (because it is filled partially).
Note that this whole procedure resembles the way in which a real Operating System uses a real hard drive.
