Georges Khaznadar

L'utilisation de la famille de clés USB vives Freduc-Jbart, pour enseigner sciences et informatique

Depuis une dizaine d'années, des clés USB vives sont utilisées au [lycée Jean Bart](https://www.lyceejeanbart.fr) de Dunkerque, pour dépasser certaines limites qu'imposent les ordinateurs sous MS-Windows. * elles autorisent un démarrage (boot) en moins d'une minute, * ça fonctionne même quand l'ordinateur est dérangé, * une vingtaine d'applications « métier » sont disponibles, * les élèves qui les utilisent chez eux retrouvent le même environnement qu'à l'école, * elles ne laissent pas de trace sur les ordinateurs hôtes. Voir : [https://usb.freeduc.org](https://usb.freeduc.org/jbart.html).

Pourquoi se déplacer avec un ordinateur, quand ce qui compte tient dans dix grammes de silicium ?

Depuis plusieurs années, j'ai une clé USB « vive », accrochée à mon trousseau. Sur n'importe quel ordinateur, après avoir demandé la permission, je peux démarrer ma session, avec mes données, dans mon environnement préféré. Ça, c'est l'informatique dite « nomade ». Ça étonne plus d'un propriétaire d'ordinateur, de voir qu'il fonctionne bien et surtout vite, comme la clé privilégie les application *frugales*. Enfin, après mon passage, nulle trace sur le disque dur de la machine hôte. Voir: [https://usb.freeduc.org](https://usb.freeduc.org)

Debian in my school ------------------- As a teacher of physics and chemistry (and marginally, computer science) in a French high school, I have to bring reliable applications and tools to my students. Even if Debian will finally spread the world, it has not yet pervaded the end-user computers which my students can access. An instant Debian environment ----------------------------- Here comes "[Jean Bart - Knoppix](ftp://usb.freeduc.org/freeduc-usb/freeduc-jbart/index.html "download the disk image ...")", the pocket Debian live thumbdrive, which allows my students to boot Debian's scientific environment in a single minute. In tight agreement with the employee who manages my school's computers, we let users boot the machines from external disks, like this particular thumbdrive. Experimenting the applications ------------------------------ Attendees of the workshop are welcome to ask for any use we might make of the live thumbdrives which will be demonstrated. I shall bring a few [Expeyes](http://expeyes.in/ "Let's have fun with science") boxes, and give an overview of scientific experiments which can be performed with such a frugal technology setup. More than one experiment may be fun!

Debian in my school ------------------- As a teacher of physics and chemistry (and marginally, computer science) in a French high school, I have to bring reliable applications and tools to my students. Even if Debian will finally spread the world, it has not yet pervaded the end-user computers which my students can access. An instant Debian environment ----------------------------- Here comes "[Jean Bart - Knoppix](ftp://usb.freeduc.org/freeduc-usb/freeduc-jbart/index.html "download the disk image ...")", the pocket Debian live thumbdrive, which allows my students to boot Debian's scientific environment in a single minute. In tight agreement with the employee who manages my school's computers, we let users boot the machines from external disks, like this particular thumbdrive. Touring through the scientific applications intended for students ----------------------------------------------------------------- During the short talk, I shall give an overview of the scientific applications which are available in this particular environment, present shortly which of them are most used by the students, and which less frequently. One of these applications drives a low-cost, yet powerful data acquisition and signal generating [box](http://expeyes.in/ "change your computer to a science lab ..."), which provides quite a complete scientific workshop, with an oscilloscope and a few signal sources. I am eager to hear suggestions for alternatives uses and for improvements of this appliance.

I was born in year 1955. So, I can explore the world of elderly people as an insider. This short talk is about a series of workshops which I organized in a French computer club which often gathers a small society of elderly people, most of whom are retired for a long time. Debian may be a good system for the elderly, when someone can tune it finely for each particular user. We shall consider a catalog of situations implying individual users, and their feelings about such a disruptive environment (just imagine: having lived all one's life with W$, and discover freedom). You know? old timers are not that different from you. Maybe some day you will feel like them?