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Bonjour à tous,

vous avez besoin de regarder la video ci dessous pour repondre aux questions
Lien : https://www.youtube.com/watch?v=p3q5zWCw8J4&feature=youtu.be

Regardez cette vidéo et répondez aux questions suivantes (vous pouvez utiliser les sous titres et jouer sur la vitesse si besoin est, pour les questions les plus pointues). Pour répondre, si vous utilisez une phrase du script, il faut citer (donc guillemets).
1. What is the main topic of the video ?
2. When was it first broadcast?
3. What’s the name of the ‘basic unit’ in computer memory ?
4. What is CPU? The author compares it to a part of our body , which one?
5. “RAM” What does “RAM” stand for?
6. Why was this name RAM chosen?
7. What is the difference with DRAM?
8. What is the fastest and most expensive memory in a computer system according to K. Senanan?
9. What’s the problem with RAM and cache?
10. Give 3 examples of long-term storage devices. What is positive and negative about them according to K. Senanan?
11. Is computer memory stable? Why?
12. How long is media storage supposed to last?
13. Write a minimum of 50 words to give your opinion on this video ( the questions here can help you. )
What do you think about this video or what K. Senanan says? Is it outdated or still relevant today? What has changed? Can we say that computer memory is stable in 2020?
14. Soyez capables de faire un petit résumé en français de cette vidéo avec les concepts clés.


voca help:
1. Main topic : sujet principal
2. To broadcast : diffuser
3.
4. A quelle partie de notre corps l’auteur compare t il CPU?
5. Stand for: représenter?
6.
7.
8. according to: d’après?
9.
10. Give 3 examples of long term storage devices. What is positive and negative about them according to K. Senanan?
11. Is computer memory stable? Why?
12. How long: combine de temps; to last: durer ?
13. Still: encore / outdated: old-fashioned: dépassé, obsolete / relevant: pertinent.






Merci beaucoup

Sagot :

leelaramjheetun

Réponse :

1. The topic of the video is to show how computer memory works

2. In may 2016

3. Basic units are called ‘bits’or ‘binary digits’

4. Central Processing Unit and it is compared as the brain.

5. Random access memory

6. Because all locations within the short-term memory can be accessed in any order (random order)

7. DRAM is dynamic random access memory and it’s called dynamic because it only holds charges briefly before they leak away requiring periodic recharging to retain data.

8. SRAM (static ram)

9. Ram and cache can only hold data as long as they’re powered.

10.

Magnetic storage : data is stored as a magnetic pattern on a spinning disc coated with magnetic film negative point : the latency for such drives is 100000 times slower than that of DRAM ; the heat can demagnetize hard drives

DVD and Blu-ray : Bits are encoded as light and dark sports using a dye that can be read by a laser. negative point : lower capacity; the heat can degrade the dye

Solid state drives (such as flash sticks) : no moving parts, use floating gate transistors that store bits by trapping or removing electrical charges within their internal structures. Negative point : charge leakage in floating gates Also repeatedly writing to floating gate transistors corrodes them eventually rending them useless.

11.  No because it degrades fairly quickly because of the heat generated from a device and its environment.

12. Less than a ten year life expectancy

13. I think this video is interesting because it exposes how computer memory works and the different devices we use to store such memory. I think however that things have evolved and now we have what we call ‘cloud storage’ such as Google Docs we send files to a data server maintained by a cloud provider instead of (or as well as) storing it on their own hard drives. We could say that computer memory is more stable in 2020 but it still lacks security.

14.

La mémoire d'un ordinateur est constituée de dispositifs physiques capables de stocker temporairement des informations, comme la RAM (mémoire aléatoire). Lorsque l'ordinateur est hors tension, tout ce qui est stocké dans la mémoire vive est perdu. Si l'unité centrale doit attendre un périphérique de stockage secondaire, comme un disque dur, l'ordinateur sera beaucoup plus lent. Le stockage auxiliaire amovible se présente sous la forme de clés USB, de cartes mémoire SD (qui se branchent sur des appareils photo numériques), de disques durs et de CD/DVD ROM.

Explications :

Voici les éléments de réponse, j’espère que ça vous aidera malgré le délais.

En savoir plus sur : https://nosdevoirs.fr/devoir/2083043

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