Q1.9 - SI units, Adding

1. Convert

  1. 900 gigameters into ____ terameters

  2. 100012 kilometers into ____ gigameters

  3. 0.002 micrometers into ____ nanometers

  4. 0.032 picometers into ____ nanometers

2. How many

  1. kilolitres in one litre?

  2. megalitres in one kilolitre?

  3. teralitres in one nanolitre?

  4. picolitres in one gigalitre?

  5. centilitres in one teralitre?

  6. microlitres in one millilitre?

3. How many

  1. bits in a byte?

  2. bits in an octet?

  3. bytes in an octet?

  4. bytes in a megabyte?

  5. bits in a megabyte?

  6. octets in a megabyte?

  7. megabytes in a gigabyte?

  8. bytes in a gigabyte?

  9. bits in a gigabyte?

  10. octets in a gigabyte?

4. If you have

  1. 5 bytes, how many bits?

  2. 62 octets, how many bits?

  3. 1.44 MB, how many bits?

  4. 2.56 GB, how many bytes?

  5. 1.2 MB, how many bytes?

  6. 34500 bytes, how many MB?

  7. 560000 bits, how many GB?

5. What is the decimal equivalent of the largest binary number that can be obtained with

  1. 3 bits?

  2. 5 bits?

  3. 8 bits?

  4. 20 bits?

  5. 32 bits?

  6. Derive a formula to determine the decimal equivalent of the largest binary number that can be obtained with n bits.

6. When would the study of computer science require pico-units? (very small units) Be creative.

7. When would the study of computer science require giga-units? (very large units) Be creative.

8. Let us consider the metric system and computers.

  1. Why does the metric system not work well for measuring computer memory?

  2. What system works better than the metric system for measuring computer memory? Why does it work better?

  3. Why don’t computer manufacturers use the better system for measuring computer memory on things like floppy disks? (Make an educated guess)