Excuse

As you know, computer's response will be really bad as you get more files, software, photos and data on your computer. 

What is happening to me is just like my slow computer.  I'm working so slowly nowadays because I have more than enough files, books, photos and videos to work for everyday.  In addition, I have too many things to collect such as plants, empty boxes, plastic cups, newspaper and so on. 

But I started to realize this should be the high time to reduce my things.  Otherwise, I am spending too much time just to find what I need.   In a sense, I'm really stack with too many things.

I'm so sorry this is the reason why my response is slow.  

From my curiosity, I put all external memories and hard desks on the table and then I calculated total number of the data.  It was over 12TB!!!

When I started using my first digital camera, Terabyte was like Universe for me.  Size of a photo was as small as 0.3 MB.  Then size of the memory went higher and higher... 2MB, 8MB, 16 MB....2GB, 4GB, 8GB, 16GB, 32GB, 64 GB and 128 GB.

I never thought the age of terabyte would come.  But it has come.   As you may know, after Terabyte, it comes Petabyte, Exabyte, Zettabyte and Yottabyte....I wonder when do we need petabyte computer in the future?