page 5!! There is a famous story about how many times you need to fold paper to fold 1mm paper and cross Mt. Fuji, and the answer is 22 times -R86plusA-

 Hello. This is Ten Watanabe of the R86plusA blog. Computers need to think about memory, which is the amount of data.

Until now, there have been various digital media such as blogs, audio media, and images, but the mainstream these days is still video distribution. Videos are informative, and you can get a lot of information at a glance.

On the other hand, there are also limitations in data capacity, and a single video can be very large as data, such as hundreds of megabytes.

Even if the computer itself has a lot of terabytes (1 million times 1 megabyte), if you take and store many videos, the memory capacity will naturally decrease. However, if it is a text file with only text written on it, it often takes only a few kilobytes (1/1000th of a megabyte).

Here, let's review the part-time job. 1 kilobyte = 1024 bytes, 1 megabyte = 1024 kilobytes, 1 gigabyte = 1024 megabytes, 1 terabyte = 1024 gigabytes.

By the way, the reason why it is 1024 instead of 1000 is that computers represent data only with the numbers 0 and 1 called binary numbers. Therefore, the capacity of data such as the power of 2 is easier for a computer to handle.

Multiply 2 to the power of 10, that is, 2 10 times, to get 1024. There is a famous story about how many times you need to fold paper to cross Mt. Fuji by folding 1mm paper, and the answer is 22 times. It might be interesting to do some math on this yourself.

The power of 2 is an exponential increase, and if you multiply it by 2 100 times or 1000 times, it becomes an astronomical number.

When it comes to cryptography, which is computer security, this idea called exponential has become the mainstream today, and exponential cryptographic digits are realized.