Category Archives: Diary


My first programming experience

20 years ago , I met programming at junior high school class. It is not too much to say that the encounter is I made a software engineer.

This class was used N88-BASIC that is running on NEC PC-9800 series PC. PC-9800 series is Japanese domestic PC brand which is a little compatible of PC/AT, and N88-BASIC is BASIC interpreter for PC-9800 series which is compatible of Microsoft BASIC.

We transcribing a program code from text, and execute. I was finished earlier, then challenge to alter program code. It’s so funny for me ! BASIC is easy to learn because which is simple programming specification. So … I recall … “Scratch” ! Scratch is easy to use that is similar to BASIC. Though although BASIC user interface is so primitive than Scratch :-p Nevertheless BASIC is enough to me at that time.

Then, I entered high school, my father bought PC to me. I developed free software for Windows by Visual Basic and Visual C++, and that is selected to software news site and computer magazine.

Today, I made used of that experience.

My refresh method is … Sauna !

I go to Sauna at a Sentou in two days per week.


Sentou is a public bath in Japan. In Tokyo, Sentou is over 700 spots available. This total number is nearly equal total of Junior high school in Tokyo. Sentou entrance fee is ¥460.

Almost Sentou establish together with Sauna. If you want to use Sauna, you pay additional charges ¥200 or more (It depends on the place).

What’s the purpose of I go to Sauna ? Because, maintenance to my body and mental. Consequently, I don’t get a cold at this winter 🙂 and get good feeling.

Do you believe it ? So … a study reports that repeated Sauna (thermal therapy) may be useful for mildly depressed patients with appetite loss and subjective complaints (Ref: Repeated Thermal Therapy Diminishes Appetite Loss and Subjective Complaints in Mildly Depressed Patients). And another study reports that sauna treatment can increase sympathetic activity (Ref: The effect of six-weeks of sauna on treatment autonomic nervous system, peak nasal inspiratory flow and lung functions of allergic rhinitis Thai patients).

If you come to Tokyo, I recommend to you go to Sentou and Sauna ! Then, you get Japanese relaxation experiences , and that get at a low price 🙂

Virgin, we missed you…

Today, I saw last flight of Virgin Atlantic Airways (VS) at Narita International Airport.


I got this novelty from VS staff. It’s very happy 🙂

(In English: “London to Tokyo … Thank you for twenty five years.”)

About ten years ago, my wife lived in London. Then, she used VS frequently. And, we used VS at honeymoon 🙂 Because, VS offers originality service than other airlines. So, VS was hold a lot of memories to us.


Twenty five years years ago, VS entered service to Narita. Now, four carrier(British Airways, JAL, ANA, and VS) are operating from Tokyo (Narita and Haneda) to London. But, today abandoned by VS. According to rumor, the abolition occurred by national policy. We called it “Narita Regulation” (Ref (Japanese): 「成田縛り」ルールは崩壊するか。ヴァージン撤退でANAがコードシェア失い、羽田運航ができなくなる? | 旅行総合研究所タビリス). If the rumour is truth, we are so sad 🙁


It’s fine today but cold and windy. Many aviation enthusiasts gathered to Narita to see last flight. I’m one of them 😀 I was taking another airplane while was waiting for take off in the two and half hours. It’s chill that pierced into the marrow !!!

Soon, the time comes …


Good bye Virgin Atlantic Airways. And, good bye our memories …

We hope to see you again at London 🙂

Yet another programming school in Japan

Do you know ‘EdTech’ ? Meaning of EdTech is computer technology education. In Japan, computer software programming education events are held one after another.

Let me introduce TENTO. TENTO is private programming school for elementary and junior high school students which established in Tokyo in 2011. I’m a volunteer teacher at the school.


TENTO differs from other programming school in Japan. It has following three unique features.

Firstly, individualized teaching, NOT uniformed teaching. Because each student wants to create software program that is different. Then each volunteer teacher teaches one by one using different programming language, style and technology. We call this ‘Terakoya‘(寺子屋) style !!

Secondly, continuous education. Many programming school and events are still one off style in Japan. One off style is able to tell kids to enjoy programming. However, TENTO believes that continuous education brings up students of programming skill.


Thirdly, TENTO really value presentations. Software program is valuable to use, not to just create it. Therefore, we held two events in twice of year. One, hack-a-thon. Two, presentation on software. Students learn modelling, programming and presentation skill through creating the software in the events. And, students have shown the benefits of study at the school 🙂


Apart from TENTO, there are not many teachers who teach computer technology in Japan. Then, some passionate teachers and computer education scientists are groping for much better programming education methodology in Japan.

I don’t know what is better programming education to whom. Nonetheless, I wanna do programming education to students. I think it is better to start studying programming from young age. They have unfettered thought. And programming skill makes our business and life much better !!!

Hello, World !

Hi! I’m Yuichiro Saito. Call me ‘koemu’.


I already have a blog, but it written by Japanese. Then, start this English blog.

Let me introduce myself.

I was born in 1981 at Osaka. Osaka is second largest city of Japan. At the graduate school, studied for Computer Science and Computer Engineer Education. Now, I’m occupied in Software Engineer at Management Service Provider (MSP). MSP is management service to servers for public web service. At MSP, I’m developing automation system for server management. That activity action is currently called ‘DevOps’.

I like Ski and Bicycle. I have been to Ski every week before we got married. Now, I go to Ski every month in winter. Following photo was taken by my graduate school teacher at Shiga Kogen.


I’ll do my best for blogging from now on 🙂