 I shall begin a little speech, but it will not be very long. It is just to make an introduction. The actual content of the workshop should be held around the table. It will be easier for us to share the hardware. But we can make a little record in order to give pointers for people who want to attend the beginning of the workshop by video. Then, first I shall talk about a little distribution which is held on a USB thumb drive. And I shall show how to use it. First, this little thumb drive was designed to be used by French students. But it can be used by other nationalities. We can localize some details. So I plugged it in. And at some time, maybe, I will be able to see the contents. Let's have a look here. Oh no, that is Conf Clock. Here is it. So I have two directories, two moin points. One is named Knopix because the distribution is based on Knopix. And I shall make a little modification. I go to the directory named boot, then syslinux. And then open and edit the file syslinux.cfg. This one, Gnu. Gnu is a good editor. So here is the definition of the keyboard. I shall comment it out. So by default, the keyboard will be an English keyboard. Later on, I shall search language settings. Here is some language settings. I don't know. Do you see the cursor? You see lung equals fr. So I shall modify it. Each lung equals fr should be changed to lung equals em. Everyone. That's done and saved. So now, when I shall boot from this USB stick, I shall have the English environment. When I explain how to do it to my students, they are told just to boot with the stick plugged in the computer. Then it depends on the computer. This one has been set so the USB stick is immediately detected. I just use a narrow key in order to prevent the automatic boot. You can modify the boot parameters here. Maybe you see the line with lung equals em. It is the line we modified. So if I type enter, the boot will be the default boot we defined. The environment detects Wi-Fi signals and also wired Ethernet signals. So I shall try the Ethernet cable here. Here is it. So the boot time is roughly one minute with this old machine, which is five years old, which is quite surprising for people who are using Windows and are used to wait five minutes before doing anything. It will be a little longer because I must set up the two screens, my screen and the screen of the beamer. So that's it. I can begin working, but I must change the output. So my view should be almost done. Yes, done. So you see a photo of my school's main entrance. This picture was awarded. The author of this picture was awarded glory. She is a student of my school who will pass her baccalaureate this year. Then when we shall begin the real workshop, we shall use mainly the electronic parts or the educational part or the programming part. Each of these three parts has many applications. As I told you, the Internet access was granted without a problem. So I shall try to show you a few links to useful information. First information will be about Hardware Box, which is quite inexpensive. It is sold in India. The public price is 3,000 rupees. I don't know how to... I don't know the rates exchanged with Taiwan dollars. But as far as I know, it is the less expensive system to do physical measurements and which can emulate 4-channel oscilloscope. So first, the link. Just search, expires, and here is it. There is now quite a lot of explanation in video format, etc. So to summarize it, it's a tool for learning science and you can experiment. When you buy the kit, it comes with some components, magnets... Oh, there is a strong magnet here. Because the microphone is ticked on it. Microphones, condenser, resistors, many things. So you can do approximately 50 experiments which are described in the booklet. However, it is like a construction kit. You can make the 50 experiments and then you can just invent. So this is the first useful link. The second one should be usb.freeduck... Oh, yes, English keyboard. So, usb. Dot. Is it a dot? Oh, no, it's not a dot. How strange. I shall use a French keyboard. So it's not load keys. In graphic, it should be set xk. Sorry, I shall use French. No, I can't find the dot. My browser has French preference. So it began with the French page. Let us go to the English translation. So you have some contents here. And you can find how to download this one. Yes, the key word here should be freeduck-gbar. Jean Bar is the name of my high school. So maybe I must click here. Here it is, but I must go to English. Okay, so how to get this pen drive? Browse this link. And here you should have... Oh, the explanations are in French language. Sorry, I did not check that the continuity for English language was not correct. En, something is going wrong. So I shall make a translation. Telechargement is downloaded. So you download this file, which is quite heavy. A little less than four gigabytes. You uncompress it with G and zip. And then you transfer the data on a USB stick. This can be done with very simple commands with Linux. And there is a recipe to do it with Windows. Windows user can use the application Win32, a disk major. Then just for the record, I shall show what can be done with this little box. This box contains a little computer and communicates with the main computer by a USB cable. So I plug it. The software is already installed in the computer. The software is named Ace17 because this little box is named Ace17. And I shall start the application. So electronics or... I have only the manual, so education. Here is it. It is somewhat longer with a USB stick than with a hard disk, but here it comes. So yes, you are seeing it. Maybe you are seeing a screen, which is much like a no-celloscope screen. And here, it will be easier to show when we will sit around the table, I just have a wire which goes out the wave generator slot and another one which enters input A1. And I shall undo the contact and then just touch with my hands. Oh, something happens. But that is weird. What can it be? So I shall change the time base. I shall change the sensitivity. How strange. To see here, the amplitude seems to be near 0.05 volts and the frequency is 60 Hz. Oh, maybe I am not in France. Maybe I am in Taiwan because this is the mains frequency. And my corpse is influenced by that lot of wires, but there are probably other frequencies. So let us have a Fourier transform. Here is it. The signal at 60 Hz is very strong. There is no signal at 120 Hz, but there is one at 180 Hz. Interesting. I shall not make a physical explanation of this, but you see that not every harmonic, if you know what a harmonic means, are there. So this little box is very interesting. It cannot have the same features as an oscilloscope because an oscilloscope can go to a wider frequency range, but this is good for audio frequencies and it can go up to ultrasound frequencies. So it is quite useful to explain things in high schools. As this box is not that expensive, we can lend this box to students exactly as we can lend a book. It is twice the price of an average book. Then a signal generator. Oh, the frequency is bigger and the signal is stronger. So here is it. I make another Fourier transform and here you see there is a single frequency. So we can have four different entries, but to play with them, we should make experiments with the small kit. So the entries are not exactly with the same status. A2 is quite as A1. A3 is a little different, but the fourth one must be the microphone entry. The microphone entry is a microphone which is embedded in this little box and the amplified output of the microphone is here on the box. So I shall unplug the wave generator. Use the microphone and try to... Oh, I must activate the microphone here. Hello, nothing. I missed something, but I don't know what. Sorry, I missed something. Activate the channel. Maybe when I activate on the right side, it gives me hints about the amplitude and about the frequency. But the amplitude is not very significant and the frequency would be very, very high. So I missed something, but I forgot which I missed. I think it would be better now to stop the video record. I just remind the two important links. So one is usb.friduc.org and the other one, the most important one, I think is expise.en. I shall just have a look at the packages. Maybe, yes, bigger. So apathycage search expise. Oh, this is my usb stick and it was not updated. So I shall update it. So let us nature make its work. And meanwhile, I shall talk a little about the usb disk. The usb disk comes with read-only part. This read-only part contains all of the initial settings and all of the initial software. I can install some software more just using apathy. I can do changes and I can save files. And if a student breaks everything, it is not a problem. You just need to wipe out one partition and everything begins exactly like it was at boot time the first time you used the usb stick. So this environment is very safe to use with students. I can also say to parents that if a child uses the familiar computer with the stick, no modification is made by default on the computer's hard disk. This is interesting and many parents like to know that the child is not supposed to make modification or to input viruses in the family computer. So will be this last long time finished. Oh, sorry. I did not do the right command. I did not see the end. So here are all the packages which are in Debian main about XPISE. So this one is for the format of this measurement box. And the current one is that one XPISE 17. And there are document packages to give the user manual. Currently the supported languages are English by default and French but translations are welcome. So this would be the end of the video record. Thank you.