1. How many letters?
http://www.sciencebuddies.org/science-fair-
projects/project_ideas/CompSci_p014.shtml
s1230140 Shota Hirata

2. Abstract
• We write an article with PC
• Computer must memories it.

3. Human & Computer
• Computer memorizes big amount of data.
• Human being forgets memory when the time
passed.

4. Method of memory at the
computer
• Computer isn t learning while associating it
• Computer codes information uses a pattern.

5. Binary
• Code of the computer express in intelligible
binary numbers.
• Computer saves code with a file at hard disk.

6. Experiment description
• How does file size change a file by many
letters?
• How do you measure size??

7. Knowledge before
experiment ①
• Letter : write a language.
• Text : data of this latter
• File : Structure that make it treating data

8. Knowledge before
experiment ②
• Memory : Learning it without forgetting.
• KB : Unit to express amount of storage.
• 10 * 10 * 10
• MB : It is amount of storage as like as KB.
• 10 * 10 * 10 * 10 * 10 *10

9. Material of experiment ①
• Computer
• Microsoft word : Text editor

10. Material of experiment ②
• Graph paper : write a figure & graph
• Understanding a tendency from
• experimental result.
• marker.

11. Method ①
• 1:Give a 1000 words of a .
• 2:Copy & paste of it.
• 3:Make 1000 words files.

12. Method ②
• 4:make name 1000.txt
• 5:In a similar manner, I perform it to 4000.txt.
• 6:Check a size of file.

13. Results
• A1000.txt : 1KB
• A2000.txt : 2KB
• A3000.txt : 3KB
• A4000.txt : 4KB

14. Consideration
• Results increased by 1 KB
• 1000 words means 1KB

15. Other methods
• Put a various letters together.
• Changing it into different font type or letter
size
• Trying it at different application.