 --- *~~~ La versione in italiano inizia subito dopo la versione in inglese ~~~* --- **ENGLISH** **02-01-2025 - Computer science basics - Network infrastructures [EN]-[IT]** With this post I would like to give a brief instruction on the topic mentioned in the subject (code notes: X_75) ***Network infrastructures*** To connect the various computer systems together, computer network infrastructures are used. These represent the set of technologies, devices and protocols used to connect computer systems together. A computer network is a set of autonomous and interconnected computing nodes: each node, representing a generic device) performs and carries out its tasks autonomously but is interconnected to other devices through appropriate physical signal transmission supports for sharing information and resources. **Definition** A computer network is a set of autonomous and interconnected computing nodes: each node, representing a generic device) executes and carries out its tasks autonomously but is interconnected to other devices through appropriate physical signal transmission supports for sharing information and resources. **Performance** In terms of performance of computer networks, the indices to take into account are: -transmission capacity -network connection delay -stability -fairness **Functionality** The functionalities of a network are different, the main ones are listed below: -Share resources -Simplify maintenance -Improve fault tolerance -Run distributed applications -Access remote information -Communicate with other users -Perform tasks with other users *Below are some information pills regarding the subject in question.* **1-computer network** A computer network is defined as a set of autonomous and interconnected computing nodes **2-Guaranteed performance** The following performances are guaranteed by a computer network: -greater communication reliability -greater system security -greater scalability NOTE: The greater connection speed is not a performance guaranteed only by a computer network **3-The receiver** The element involved in the communication process that decodes the signal into a message is the receiver **4-Communication protocol** A communication protocol is the set of rules that establish the communication mode between two nodes **5-Transmission capacity** Transmission capacity represents the amount of data that can be communicated in one second via the network **6-Connection delay** The network connection delay indicates the time required for data to pass from the sender to the recipient on the network **7-functionality** Some of the main network functions are: -sharing resources -running distributed applications -simplifying resource maintenance NOTE: communication between the hardware and software parts of a computer is not a function of a computer network **8-Transmission attempts** The first attempts at data transmission between two computers date back to the 1940s. **9-Autonomous nodes** In the case of autonomous nodes, the nodes are independent of each other **10-connection interface** The interface connecting the network device to the transmission medium is the network connector. ***Conclusions*** The first attempts at communication between two computers occurred in the 1940s. Today, computer network infrastructures are the foundation of modern communication, allowing systems and devices to exchange data and share resources efficiently and securely. ***Question*** Have you ever worked on building a computer network? Have you ever had problems due to an inefficiency of a computer network? --- https://images.hive.blog/1536x0/https://files.peakd.com/file/peakd-hive/green77/gGQutTRs-hive-spacer.png --- **[ITALIAN]** **02-01-2025 - Basi di informatica - Infrastrutture di rete [EN]-[IT]** Con questo post vorrei dare una breve istruzione a riguardo dell’argomento citato in oggetto (code notes: X_75) ***Infrastrutture di rete*** Per collegare tra loro i vari sistemi informatici si usano le infrastrutture di rete dei calcolatori. Queste rappresentano l'insieme delle tecnologie, dispositivi e protocolli utilizzati per collegare tra di loro i sistemi informatici. Una rete di calcolatori è un insieme di nodi di calcolo autonomi ed interconnessi tra di loro: ogni nodo, rappresentante un generico dispositivo) esegue e svolte i propri compiti in modo autonomo ma è interconnesso ad altri dispositivi tramite opportuni supporti fisici di trasmissione del segnale per la condivisione di informazioni e risorse. **Definizione** Una rete di calcolatori è un insieme di nodi di calcolo autonomi ed interconnessi tra di loro: ogni nodo, rappresentante un generico dispositivo) esegue e svolte i propri compiti in modo autonomo ma è interconnesso ad altri dispositivi tramite opportuni supporti fisici di trasmissione del segnale per la condivisione di informazioni e risorse. **Prestazioni** In termini di prestazioni delle reti di calcolatori, gli indici da tenere in considerazione sono: -la capacità di trasmissione -il ritardo del collegamento di rete -la stabilità -l’equità **Funzionalità** Le funzionalità di una rete sono diverse, qui sotto sono elencate quelle principali: -Condividere risorse -Semplificare la manutenzione -Migliorare la tolleranza ai guasti -Eseguire applicazioni distribuite -Accedere alle informazioni remote -Comunicare con altri utenti -Eseguire compiti con altri utenti *Qui di seguito alcune pillole di informazioni a riguardo dell’argomento in oggetto.* **1-rete di calcolatori** Una rete di calcolatori è definita come un insieme di nodi di calcolo autonomi ed interconnessi tra di loro **2-Prestazioni garantite** Le seguenti prestazioni sono garantite da una rete di calcolatori: -maggiore affidabilità della comunicazione -maggiore sicurezza del sistema -maggiore scalabilità NOTA: La maggiore velocità di collegamento non è una prestazione garantita solo da una rete di calcolatori **3-Il ricevitore** L'elemento coinvolto nel processo di comunicazione che decodifica il segnale in messaggio è il ricevitore **4-Protocollo di comunicazione** Un protocollo di comunicazione è l'insieme di regole che stabiliscono la modalità di comunicazione tra due nodi **5-Capacità di trasmissione** La capacità di trasmissione rappresenta la quantità di dati che è possibile comunicare in un secondo mediante la rete **6-Ritardo di collegamento** Il ritardo di collegamento di rete indica il tempo necessario ai dati per passare dal mittente al destinatario sulla rete **7-funzionalità** Alcune tra le principali funzionalità di rete sono: -condivisione delle risorse -esecuzione di applicazioni distribuite -semplificare la manutenzione delle risorse NOTA: non è una funzionalità di una rete di calcolatori la comunicazione tra la parte hardware e la parte software di un calcolatore **8-Tentativi di trasmissione** I primi tentativi di trasmissione dati tra due elaboratori risalgono agli anni anni '40. **9-Nodi autonomi** Nel caso di nodi autonomi, i nodi sono tra di loro indipendenti **10-interfaccia di collegamento** L’interfaccia di collegamento del dispositivo di rete al mezzo di trasmissione è il connettore di rete. ***Conclusioni*** I primi tentativi di comunicazione tra due computer avvennero negli anni '40. Oggi, le infrastrutture di rete dei calcolatori rappresentano il fondamento della comunicazione moderna, permettendo a sistemi e dispositivi di scambiare dati e condividere risorse in modo efficiente e sicuro. ***Domanda*** Avete mai lavorato alla costruzione di una rete informatica? Avete mai avuto problematiche dovute ad una inefficienza di una rete di computer? **THE END**
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Building a computer network is something I have never thought of doing because I’m not computer inclined
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!PIZZA !ALIVE !LOL !INDEED
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<div class='pull-right'><center><img src="https://lolztoken.com/lolz.png"><br><a href="https://lolztoken.com">lolztoken.com</a></p><br><br><br><br></center></div><p><center><strong>What is in the middle of nowhere?<br>The letter H</strong><br><sub>Credit: <a href="https://peakd.com/@reddit">reddit</a></sub><br>@stefano.massari, I sent you an <a href="https://lolztoken.com">$LOLZ</a> on behalf of cryptoyzzy<br><br>(1/10)<br>Delegate Hive Tokens to Farm $LOLZ and earn 110% Rewards. <a href='https://peakd.com/@lolztoken/introducing-lolz-defi-now-you'>Learn more.</a></center></p>
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!HOPE !ALIVE !LOL !INDEED
author | cryptoyzzy |
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<center><p><sub>(4/10)</sub><br>@stefano.massari! <b>@cryptoyzzy Wants to spread Hope!</b> so I just sent 1 <b>HOP</b> to your account on behalf of @cryptoyzzy. </p><p>Since we think the world can use more Hope, you can now already start spreading Hope yourself! <p><img src="https://images.ecency.com/DQmWgjquLMiUmRCMvttUVeLUJVQuUmJT2vEiXWuvBHtVEgZ/hope_s.png" style="width: 75px; height: 75px;" alt="Hope Logo"></p></center>
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<center><p><sub>(1/25)</sub><br>@stefano.massari! <b>@cryptoyzzy Totally agrees with your content!</b> so I just sent 1 <b>IDD</b> to your account on behalf of @cryptoyzzy. </p> <p><img src="https://images.ecency.com/DQmWb3w1G2BqK4FQdm7VzMnr7iwc2ESzQd4Nnb21Sbp8rK8/idd_s.png" style="width: 75px; height: 75px;" alt="Indeed Logo"> </p></center>
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<center><p><sub>(9/25)</sub><br>@stefano.massari! <b>@cryptoyzzy Totally agrees with your content!</b> so I just sent 1 <b>IDD</b> to your account on behalf of @cryptoyzzy. </p> <p><img src="https://images.ecency.com/DQmWb3w1G2BqK4FQdm7VzMnr7iwc2ESzQd4Nnb21Sbp8rK8/idd_s.png" style="width: 75px; height: 75px;" alt="Indeed Logo"> </p></center>
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<center>PIZZA! $PIZZA slices delivered: @cryptoyzzy<sub>(1/5)</sub> tipped @stefano.massari </center>
author | pizzabot |
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<center><p><sub>(1/10)</sub><br>@stefano.massari! <b>You Are Alive </b> so I just staked 0.1 <b>ALIVE</b> to your account on behalf of @cryptoyzzy. </p> <p><img src="https://images.hive.blog/0x0/https://i.imgur.com/p2WXJLn.png" style="width: 350px; height: 75px;" alt="Alive Banner"> </p></center>
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<center><p><sub>(9/10)</sub><br>@stefano.massari! <b>You Are Alive </b> so I just staked 0.1 <b>ALIVE</b> to your account on behalf of @cryptoyzzy. </p> <p><img src="https://images.hive.blog/0x0/https://i.imgur.com/p2WXJLn.png" style="width: 350px; height: 75px;" alt="Alive Banner"> </p></center>
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