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→Main Objectives of this Practice Tutorial
===Main Objectives of this Practice Tutorial===
:* xUnderstand the importance of how computers store data (i.e. data representation)
:* xUnderstand the purpose of '''decimal''', '''binary''', '''octal''' and '''hexadecimal''' numbers
:* xPerform various numbering conversions between the decimal, binary, octal and hexadecimal numbering systems by hand without the use of a computer or calculator
:* xIdentify which numbering system conversion method to use based on test question
:* xUnderstand directory and regular file permissions
:* xLearn how to set directory and regular file permissions with the '''chmod''' command (symbolic and octal methods)
:* Learn how to use the umask command to have permissions for directories and files automatically set upon their creation
===Tutorial Reference Material===
