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# Changes

→INVESTIGATION 1: NUMBERING CONVERSIONS

# Let's convert the following ''8-bit'' binary number '''10111110''' to a decimal number.<br><br>'''NOTE:''' It is extremely important to learn the correct technique to perform the<br>proper numbering conversion method (i.e. view the method above (drawing the L's).<br><br>

# Write the manual conversion on a sheet of paper.<br><br>

# Use a calculator to check your work. In MS Windows, you can set the calculator to Programming mode by making the selection to '''binary''', enter the binary number '''10111110''' and view the decimal equivalent.<br><br>Did you get the correct answer? If not, retry the method and check to see what you did wrong.<br><br># ~~x~~Perform a manual conversion of the decimal number 55 to an 8-bit binary number. What method (displayed above) will you use? Use a calculator to check your work.<br><br># Perform a manual conversion of the octal number 461 to an 8-bit binary number. What method (displayed above) will you use? Use a calculator to check your work.<br><br># Perform a manual conversion of the 8-bit binary number 11110001 to a hexadecimal number. What method (displayed above) will you use? Use a calculator to check your work.<br><br># Perform a manual conversion of the hexadecimal number ABC to an 8-bit binary number. What method (displayed above) will you use? Use a calculator to check your work.<br><br># Perform a manual conversion of the binary number 10101111 to an octal number. What method (displayed above) will you use? Use a calculator to check your work.<br><br># Perform a manual conversion of the same binary number 10101111 to hexadecimal number. What method (displayed above) will you use? Use a calculator to check your work.<br><br># Perform a manual conversion of the octal number 5636 to a hexadecimal number. What method (displayed above) will you use? Use a calculator to check your work.<br><br># Perform a manual conversion of the hexadecimal number D68 to an octal number. What method (displayed above) will you use? Use a calculator to check your work.<br><br>

=INVESTIGATION 2: FILE PERMISSIONS=