About parallel processing

As I said at the earlier letter, I'm majoring in computer science. There is a concept(theory?) which is very powerful and get interests today. It is called 'Parallel processing'. This means that a computer having multi cores would process some tasks at the same time. If you are not familiar with computer, you would get confused when the word 'multi core' came out. To make it easy, just consider 'multi core' as same with human's brain. The most newest personal computers have at least two cores.

Anyway, the reason why I brought it in this diary is that I realize I only have one brain. I'm more appropriate at focusing on one task at one time. Truth to be told, I just failed attempting parallel processing with two trivial task. These tasks are very easy to be done and usually take less than five minutes when I deal with those separately. One of them was signing up Uber(call taxi service). The other one is payment of my room charge money. The payment process has several step on web and sign up of Uber also do. In addition, between the steps of payment take quite long network communication time in each step. I guess it is because of complexity of secure banking transaction process.

So, my strategy was filling the network communication time gap. While I had steps of payment mainly, I would use the network delay time to sign up uber. However, this turned out to be just optimistic soon after. When I filled out promotion code in network time gap, Uber couldn't understand my friend promotion code. I had have to ask the promotion code again to correct number. Therefore, I forgot that I was in the step of payment process for a while. After finishing asking promotion code from my friend, I returned web page of room charge payment. The webpage session was just expired. Even worse, the promotion code was not incorrect. I just made typo error under the anxious condition.

The lesson of today was that "Just focus on only one thing when you do something". Or, if you are extremely busy, just do trained task which make no exception when you try to utilize time gap.