1 3 Les périphériques
Summary
TLDRThis video script introduces the third section focused on computer peripherals, explaining their function and types. Peripherals are devices connected to a central processing system like a computer, adding functionalities. There are three main types: input devices (keyboard, touchscreen, mouse, scanner, microphone, webcam, game controller, CD/DVD reader), output devices (monitor, speakers, printer, projector), and input-output devices (router, CD/DVD writer, USB flash drive). These devices facilitate communication between the computer and the external world, allowing information exchange and enhancing user interaction.
Takeaways
- 💻 A computer peripheral is a device connected to a central processing system like a computer, smartphone, or gaming console to add functionality.
- 🔍 There are three main types of computer peripherals: input devices, output devices, and input-output devices.
- ⌨️ Input devices allow for communication of information to the computer, such as a keyboard for typing and a touchscreen for touch inputs.
- 🖱️ The mouse is an input device that allows for pointing and selecting items on the user interface.
- 🖨️ Scanners are input devices that aim to digitize documents or photos.
- 🎤 Microphones are input devices that record voice for various applications like gaming and online discussions.
- 📸 Webcams are input devices that capture images in real-time for video conferencing or online chats.
- 🎮 Gaming controllers are input devices that transmit user actions to the computer when playing video games.
- 📀 CD/DVD drives are input devices that read information from storage media like CDs or DVDs.
- 🖥️ Output devices transmit information from the computer to the user, such as monitors for displaying information and speakers for sound.
- 🖨️ Printers are output devices that reproduce text or images on paper, converting digital output to a physical print.
- 📽️ Video projectors are output devices that project computer information onto a wall or screen, often replacing monitors in presentations.
- 🔄 Input-output devices have dual functionality, introducing information into the computer and also outputting information from it, like routers and CD/DVD burners.
- 💡 USB flash drives are considered input-output devices due to their ability to both send and receive information to and from the computer.
Q & A
What is the main focus of the video script?
-The video script focuses on explaining the different types of computer peripherals, their functions, and their roles in communicating with the central processing unit of a computer.
What are the three main categories of computer peripherals mentioned in the script?
-The three main categories of computer peripherals mentioned are input devices, output devices, and input-output devices.
What is an input device according to the script?
-An input device is a computer peripheral that allows communication of information to a computer. Examples include a keyboard, touchscreen, mouse, scanner, microphone, webcam, and game controller.
What is an output device in the context of the script?
-An output device is a computer peripheral that transmits information from the computer to the users. Examples include a monitor or screen, speakers, printer, and video projector.
What is the purpose of a keyboard as an input device?
-The purpose of a keyboard is to allow users to type and input textual information into the computer.
How does a touchscreen function as an input device?
-A touchscreen functions as an input device by allowing users to input information by touching the screen, which can then be transmitted to the computer.
What is the role of a mouse as an input device?
-A mouse serves as an input device by enabling users to point and click on graphical elements displayed on the screen, facilitating navigation and selection within the user interface.
What is the function of a scanner as an input device?
-A scanner functions as an input device by digitizing documents or photos, converting them into a format that can be processed by the computer.
How does a webcam serve as an input device?
-A webcam serves as an input device by capturing real-time images and transmitting them to the computer, which can be used for video conferencing or online discussions.
What is the purpose of a game controller as an input device?
-A game controller is an input device that allows users to transmit actions they perform while playing a video game to the computer.
What is the role of a CD/DVD player as an input device?
-A CD/DVD player serves as an input device by reading information from a storage medium named CD or DVD, allowing users to access the content stored on these discs.
What are the characteristics of an input-output device as described in the script?
-An input-output device has the dual functionality of introducing information into the computer and also retrieving information from the computer. Examples include routers, CD/DVD burners, and USB flash drives.
How does a router function as an input-output device?
-A router functions as an input-output device by routing information from the Internet network to the computer and vice versa.
What is the dual function of a CD/DVD burner as described in the script?
-A CD/DVD burner has the dual function of reading the content of a CD or DVD and also writing data onto it.
How is a USB flash drive considered both an input and output device?
-A USB flash drive is considered both an input and output device due to its ability to transfer information to the computer and also to retrieve information from it for storage.
What is the purpose of a monitor or screen as an output device?
-The purpose of a monitor or screen as an output device is to display information coming from the computer, allowing users to visually interact with the data.
How do speakers function as output devices?
-Speakers function as output devices by playing sounds that originate from the computer, allowing users to audibly interact with the audio content.
What is the role of a printer as an output device?
-A printer serves as an output device by reproducing text or images on paper, converting digital information into a physical, printed form.
How does a video projector serve as an output device?
-A video projector serves as an output device by projecting information from the computer onto a wall or a white screen, enhancing the viewing experience for presentations or multimedia content.
Outlines
🖥️ Introduction to Computer Peripherals
This video is part of a series, specifically sequence number 3, focusing on input and output peripherals. It explains the functional scheme of a computer, highlighting how various devices are connected to the central processing unit. The video introduces the concept of computer peripherals as devices that add functionality to central systems like computers, smartphones, and gaming consoles by facilitating communication with the external world. There are three main types of peripherals: input, output, and input-output devices. The video provides examples of each, such as keyboards, touchscreens, mice, scanners, microphones, webcams, game controllers, and CD/DVD readers for input; monitors, speakers, printers, and video projectors for output; and routers, CD/DVD burners, and USB keys for input-output devices. It concludes by thanking the viewers for their attention and promising more information in the next section of the series.
Mindmap
Keywords
💡Peripherals
💡Input Devices
💡Output Devices
💡Input-Output Devices
💡Computer Functionality
💡User Interface
💡Digitization
💡Communication
💡Storage Media
💡Networking
💡USB Flash Drive
Highlights
Introduction to the third section of the video series focusing on input and output devices.
Explanation of the functional schematic of a computer showing the connection of various devices to the central processing unit.
Definition of a computer peripheral as a device connected to a central information processing system like a computer, smartphone, or game console.
Peripherals add functionalities to the central system and communicate with the external world.
Three main types of peripherals: input devices, output devices, and input-output devices.
Input devices allow communication of information to a computer.
Examples of input devices include the keyboard, touchscreen, mouse, scanner, microphone, webcam, and game controller.
The keyboard is used for typing information into the computer.
Touchscreens enable users to input information through screen touches.
Mice are used to point and interact with graphical elements on the user interface.
Scanners are used for digitizing documents and photos.
Microphones record voice for various applications like video games and online discussions.
Webcams capture real-time images and communicate them to the computer.
Game controllers transmit user actions to the computer for video gaming.
CD/DVD readers allow reading information from storage media.
Output devices transmit information from the computer to the user.
Examples of output devices include monitors, speakers, printers, and video projectors.
Monitors display information from the computer.
Speakers are essential for listening to sounds from the computer.
Printers reproduce text or images on paper, converting digital output to printed output.
Video projectors replace monitors by projecting computer information onto a wall or screen.
Input-output devices have dual functionality, introducing and outputting information from the computer.
Examples of input-output devices include routers and CD/DVD burners.
Routers route internet information to and from the computer.
CD/DVD burners read and write content onto CDs and DVDs.
USB keys are considered storage devices and function as input-output devices for transferring information.
Summary of the types of computer peripherals and associated devices.
Transcripts
[Musique]
bonjour cette vidéo est associée à la
séquence numéro 3 je présenterai la 3ème
section dédiée au périphériques d'entrée
et de sortie le schéma suivant présente
le schéma fonctionnel d'un ordinateur
nous pouvons remarquer que les
différents périphériques sont liés à
l'unité centrale de l'ordinateur au
cours de cette vidéo vous allez
découvrir les périphériques
informatiques et leurs caractéristiques
ainsi la première question qu'on peut se
poser est qu'est-ce qu'un périphérique
informatique un périphérique
informatique est un dispositif connecté
à un système de traitement d'information
centrale comme un ordinateur un
smartphone une console de jeu et qui
ajoute à ce dernier des
fonctionnalités en d'autres termes un
périphérique représente tout composant
permettant de faire communiquer
l'ordinateur avec le monde extérieur il
existe trois principaux types de
périphérique les périphériques d'entrée
les périphériques de sortie et les
périphériques d'entrée sortie commençons
par les périphériques d'entrée un
périphérique d'entrée est un
périphérique informatique permettant de
communiquer de l'information à un
ordinateur parmi les périphériques
d'entrée nous pouvons citer en premier
lieu le clavier ce dernier permet de
saisir des informations dans
l'ordinateur deuxème périphérique
d'entrée est l'écran tactile grâce au
touchés de l'écran tactile nous pouvons
saisir des informations à transmettre à
l'ordinateur 3è périphérique d'entrée la
souris elle permet de pointer sur
l'interface utilisateur c'est-à-dire sur
ce qui est affiché à l'écran des
éléments graphiques 4è périphérique
d'entrée le scanner il a pour objectif
la numérisation des documents ou des
photos 5è périphérique d'entrée que l'on
peut citer est le microphone ce permet
d'enregistrer notre voix pour plusieurs
applications possibles comme le champ
les discussions de vie voie en ligne et
cetera le 6e périphérique d'entrée est
la webcam elle permet de capturer les
images et les communiquer à l'ordinateur
en temps réel
est utilisé pour effectuer des
visionférences ou des discussions en
ligne 7e périphérique d'entrée la
manette de jeu ce dispositif permet de
transmettre à l'ordinateur les actions
effectuées par l'utilisateur
lorsqu'il joue un jeu vidéo
8e périphérique d'entrée c'est le
lecteur CD DVD il permet de lire les
informations à partir d'un support de
stockage nommé cdome ou
dvdome le deuxième type de périphérique
s'inscrit dans le périphérique de sortie
un périphérique de sortie est un
périphérique informatique permettant de
transmettre les information de
l'ordinateur vers les utilisateurs
c'est-à-dire il récupère l'information à
partir de l'unité centrale de
l'ordinateur et nous la transmet à nous
nous pouvons citer par exemple l'écran
ou le moniteur qui permet de nous
afficher de l'information provenant de
l'ordinateur les haut-parleurs également
qui sont des dispositifs essentiels pour
écouter les sons provenants de
l'ordinateur l'imprimante est également
considérée comme un périphérique de
sortie car elle permet de reproduire des
textes ou des images sur du papier en
d'autres termes elle a la particularité
de transformer la sortie en une sortie
imprimé un autre périphérique de sortie
que vous trouvez dans vos amphi est le
vidéoprjecteur ce dernier remplace
généralement l'écran en projetant les
informations provenant de l'ordinateur
sur un mur ou un support
blanc le troisième type de périphérique
informatique est associé au périphérique
d'entrée sortie ce sont des
périphériques particuliers car ils se
caractérisent par leur double
fonctionnalité introduction de
l'information dans le ordinateur mais
aussi faire ressortir l'information de
l'ordinateur un des exemples les plus
importants est le routeur il permet
d'acheminer les informations du réseau
Internet vers l'ordinateur et
vice-versa le lecteur et graveur cddvd
est aussi un dispositif d'entrée- sortie
car il permet de lire le contenu d'un CD
au DVD mais aussi d'écrire dessus
finalement la clé USB considérée aussi
comme un support de stockage représente
bien un dispositif entrée et sortie du
fait de sa capacité à transmettre des
informations vers l'ordinateur mais
également à en
récupérer pour récapituler nous avons
découvert les types des périphériques
informatiques ainsi que les dispositifs
associés je vous remercie pour votre
attention et vous donne rendez-vous pour
la prochaine section de cette séquence
[Musique]
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