Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

ecdl-modulo-1-concetti-di-base-della-tecnologia-dell informazione

4,676 views

Published on

Sintesi del Modulo 1 ECDL

Published in: Education, Technology, Business
  • DOWNLOAD THIS BOOKS INTO AVAILABLE FORMAT (2019 Update) ......................................................................................................................... ......................................................................................................................... Download Full PDF EBOOK here { https://soo.gd/irt2 } ......................................................................................................................... Download Full EPUB Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download Full doc Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download PDF EBOOK here { https://soo.gd/irt2 } ......................................................................................................................... Download EPUB Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download doc Ebook here { https://soo.gd/irt2 } ......................................................................................................................... ......................................................................................................................... ................................................................................................................................... eBook is an electronic version of a traditional print book THIS can be read by using a personal computer or by using an eBook reader. (An eBook reader can be a software application for use on a computer such as Microsoft's free Reader application, or a book-sized computer THIS is used solely as a reading device such as Nuvomedia's Rocket eBook.) Users can purchase an eBook on diskette or CD, but the most popular method of getting an eBook is to purchase a downloadable file of the eBook (or other reading material) from a Web site (such as Barnes and Noble) to be read from the user's computer or reading device. Generally, an eBook can be downloaded in five minutes or less ......................................................................................................................... .............. Browse by Genre Available eBooks .............................................................................................................................. Art, Biography, Business, Chick Lit, Children's, Christian, Classics, Comics, Contemporary, Cookbooks, Manga, Memoir, Music, Mystery, Non Fiction, Paranormal, Philosophy, Poetry, Psychology, Religion, Romance, Science, Science Fiction, Self Help, Suspense, Spirituality, Sports, Thriller, Travel, Young Adult, Crime, Ebooks, Fantasy, Fiction, Graphic Novels, Historical Fiction, History, Horror, Humor And Comedy, ......................................................................................................................... ......................................................................................................................... .....BEST SELLER FOR EBOOK RECOMMEND............................................................. ......................................................................................................................... Blowout: Corrupted Democracy, Rogue State Russia, and the Richest, Most Destructive Industry on Earth,-- The Ride of a Lifetime: Lessons Learned from 15 Years as CEO of the Walt Disney Company,-- Call Sign Chaos: Learning to Lead,-- StrengthsFinder 2.0,-- Stillness Is the Key,-- She Said: Breaking the Sexual Harassment Story THIS Helped Ignite a Movement,-- Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones,-- Everything Is Figureoutable,-- What It Takes: Lessons in the Pursuit of Excellence,-- Rich Dad Poor Dad: What the Rich Teach Their Kids About Money THIS the Poor and Middle Class Do Not!,-- The Total Money Makeover: Classic Edition: A Proven Plan for Financial Fitness,-- Shut Up and Listen!: Hard Business Truths THIS Will Help You Succeed, ......................................................................................................................... .........................................................................................................................
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
  • Dating for everyone is here: ❤❤❤ http://bit.ly/2Qu6Caa ❤❤❤
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
  • Dating direct: ❶❶❶ http://bit.ly/2Qu6Caa ❶❶❶
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
  • DOWNLOAD THIS BOOKS INTO AVAILABLE FORMAT (2019 Update) ......................................................................................................................... ......................................................................................................................... Download Full PDF EBOOK here { https://soo.gd/irt2 } ......................................................................................................................... Download Full EPUB Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download Full doc Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download PDF EBOOK here { https://soo.gd/irt2 } ......................................................................................................................... Download EPUB Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download doc Ebook here { https://soo.gd/irt2 } ......................................................................................................................... ......................................................................................................................... ................................................................................................................................... eBook is an electronic version of a traditional print book THIS can be read by using a personal computer or by using an eBook reader. (An eBook reader can be a software application for use on a computer such as Microsoft's free Reader application, or a book-sized computer THIS is used solely as a reading device such as Nuvomedia's Rocket eBook.) Users can purchase an eBook on diskette or CD, but the most popular method of getting an eBook is to purchase a downloadable file of the eBook (or other reading material) from a Web site (such as Barnes and Noble) to be read from the user's computer or reading device. Generally, an eBook can be downloaded in five minutes or less ......................................................................................................................... .............. Browse by Genre Available eBooks .............................................................................................................................. Art, Biography, Business, Chick Lit, Children's, Christian, Classics, Comics, Contemporary, Cookbooks, Manga, Memoir, Music, Mystery, Non Fiction, Paranormal, Philosophy, Poetry, Psychology, Religion, Romance, Science, Science Fiction, Self Help, Suspense, Spirituality, Sports, Thriller, Travel, Young Adult, Crime, Ebooks, Fantasy, Fiction, Graphic Novels, Historical Fiction, History, Horror, Humor And Comedy, ......................................................................................................................... ......................................................................................................................... .....BEST SELLER FOR EBOOK RECOMMEND............................................................. ......................................................................................................................... Blowout: Corrupted Democracy, Rogue State Russia, and the Richest, Most Destructive Industry on Earth,-- The Ride of a Lifetime: Lessons Learned from 15 Years as CEO of the Walt Disney Company,-- Call Sign Chaos: Learning to Lead,-- StrengthsFinder 2.0,-- Stillness Is the Key,-- She Said: Breaking the Sexual Harassment Story THIS Helped Ignite a Movement,-- Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones,-- Everything Is Figureoutable,-- What It Takes: Lessons in the Pursuit of Excellence,-- Rich Dad Poor Dad: What the Rich Teach Their Kids About Money THIS the Poor and Middle Class Do Not!,-- The Total Money Makeover: Classic Edition: A Proven Plan for Financial Fitness,-- Shut Up and Listen!: Hard Business Truths THIS Will Help You Succeed, ......................................................................................................................... .........................................................................................................................
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
  • DOWNLOAD THIS BOOKS INTO AVAILABLE FORMAT (2019 Update) ......................................................................................................................... ......................................................................................................................... Download Full PDF EBOOK here { https://soo.gd/irt2 } ......................................................................................................................... Download Full EPUB Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download Full doc Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download PDF EBOOK here { https://soo.gd/irt2 } ......................................................................................................................... Download EPUB Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download doc Ebook here { https://soo.gd/irt2 } ......................................................................................................................... ......................................................................................................................... ................................................................................................................................... eBook is an electronic version of a traditional print book THIS can be read by using a personal computer or by using an eBook reader. (An eBook reader can be a software application for use on a computer such as Microsoft's free Reader application, or a book-sized computer THIS is used solely as a reading device such as Nuvomedia's Rocket eBook.) Users can purchase an eBook on diskette or CD, but the most popular method of getting an eBook is to purchase a downloadable file of the eBook (or other reading material) from a Web site (such as Barnes and Noble) to be read from the user's computer or reading device. Generally, an eBook can be downloaded in five minutes or less ......................................................................................................................... .............. Browse by Genre Available eBooks .............................................................................................................................. Art, Biography, Business, Chick Lit, Children's, Christian, Classics, Comics, Contemporary, Cookbooks, Manga, Memoir, Music, Mystery, Non Fiction, Paranormal, Philosophy, Poetry, Psychology, Religion, Romance, Science, Science Fiction, Self Help, Suspense, Spirituality, Sports, Thriller, Travel, Young Adult, Crime, Ebooks, Fantasy, Fiction, Graphic Novels, Historical Fiction, History, Horror, Humor And Comedy, ......................................................................................................................... ......................................................................................................................... .....BEST SELLER FOR EBOOK RECOMMEND............................................................. ......................................................................................................................... Blowout: Corrupted Democracy, Rogue State Russia, and the Richest, Most Destructive Industry on Earth,-- The Ride of a Lifetime: Lessons Learned from 15 Years as CEO of the Walt Disney Company,-- Call Sign Chaos: Learning to Lead,-- StrengthsFinder 2.0,-- Stillness Is the Key,-- She Said: Breaking the Sexual Harassment Story THIS Helped Ignite a Movement,-- Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones,-- Everything Is Figureoutable,-- What It Takes: Lessons in the Pursuit of Excellence,-- Rich Dad Poor Dad: What the Rich Teach Their Kids About Money THIS the Poor and Middle Class Do Not!,-- The Total Money Makeover: Classic Edition: A Proven Plan for Financial Fitness,-- Shut Up and Listen!: Hard Business Truths THIS Will Help You Succeed, ......................................................................................................................... .........................................................................................................................
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here

ecdl-modulo-1-concetti-di-base-della-tecnologia-dell informazione

  1. 1. Modulo 1 Concetti di base delle tecnologie ICT
  2. 2. Tipi di Personal Computer  Mainframe  Network Computer (Server) Desktop/Portatili Personal digital Assistant (PDA) 2/45
  3. 3. Confronto fra PC Classe Prestazioni Costo Impiego Utenti Mainframe Elevate Elevato Sistema per la ricerca Universitaria Molti Server Medie Medio Sistema Aziendale Molti Desktop Medio/Basse Basso Sistema Individuale Uno PDA Basso Basso Sistema Individuale Uno 3/45
  4. 4. Hardware / Software  Hardware: Dall’inglese (attrezzo)è la parte fisica di un personal computer, ovvero tutte quelle parti magnetiche, ottiche, meccaniche ed elettroniche che gli consentono di funzionare.  Software: indica l'insieme dei programmi (o uno solo di questi) in grado di funzionare su un computer. 4/45
  5. 5. Struttura di un Pc Tastiera Stampante Floppy CD-ROM Hard Disk Lettore Memory Card CPU RAM Monitor Casse Audio Scheda di Rete Scheda Madre 5/45
  6. 6. Hardware
  7. 7. Unità centrale di elaborazione (CPU)  E’ il cuore del sistema  Permette di fare calcoli  E’ costituita da ALU e Cache  La velocità di misura in Mhz/Ghz e nella quantità di core 7/45 ALU CACHE ALU CACHE
  8. 8. Memorie  ROM (Read Only Memory)  RAM (Random Access Memory)  Memorie di massa 8/45
  9. 9. Dispositivi di memoria Tipo Immagine Capacità Velocità Costo Diffusione Floppy disk 1,44Mb 484Kb/s Basso In Diminuzione CD-ROM 800MB 7 MB/s Basso Ampia USB-key 1~32 GB ~10 MB/s Basso Ampia DVD-ROM 4,7 GB 20 MB/s Medio Ampia Dischi fissi interni 80~1,5 TB ~150MB/s Medio Totale Dischi fissi esterni 80~1,5 TB ~50MB/s Elevato Ampia 9/45
  10. 10. Prestazioni di un sistema Sono influenzate da:  Velocità del processore o CPU [Ghz]  Quantità di Cache [Kb]  Quantità di RAM [Mb]  Velocità del BUS (CPU-RAM) [MHz]  Velocità dell'hard disk [Giri/sec] e sua capacità [Gb]  Numero e complessità delle applicazioni in esecuzione 10/45
  11. 11. La tastiera QWERTY Basi dell’ IT 11/45
  12. 12. Il Mouse 1. Pulsante Sx 2. Pulsante Dx 3. Rotella di scorrimento e pulsante centrale 4. Pulsanti x pollice e anulare [opzionali] Basi dell’ IT 12/45
  13. 13. Altre periferiche di INPUT Puntamento Touchpad e trackball Giochi Joystick e JoypadCreatività Scanner  Input: Sono quei dispositivi che consentono di immettere dati o informazioni dentro il pc 13/45
  14. 14. Periferiche di OUTPUT Monitor Stampante Casse audio  Output: i canali attraverso i quali il calcolatore rende disponibili all’utente i risultati delle sue elaborazioni 14/45
  15. 15.  Sono tutte quelle periferiche che consentono sia di immettere dati all’interno del pc, che di visualizzarli o di esportarli Periferiche IN-OUT Multifunzione (Scanner-Stampante) Masterizzatore Disco rigido (Hard Disk) 15/45
  16. 16. Principale Porte di I/O  Sono le porte che vengono usate dal pc per connettersi con il modo esterno Basi dell’ IT 16/45
  17. 17. Il linguaggio Binario Binario  2 valori  (0 1)  Multipli  2^2 (4)  …  2^10(1024) Kilo[K]  2^20(1024K) Mega[M] Decimale  10 valori  (0 1 2 3 4 5 6 7 8 9)  Multipli  10^2 (100)  …  10^3 (1000) Kilo[K]  10^6(1000K) Mega[M]  Per rappresentare anche le lettere e i caratteri speciali, si utilizzano dei “numeri” da 0 a 255 già stabiliti. 17/45
  18. 18. Il codice ASCII 18/45
  19. 19. Dimensione delle parole  Ogni carattere codificato con 8bit (1Byte)  ECDL => 8x4= 32bit = 4Byte  Spazio in un CD  700Mb= 734’003’200Byte  734 milioni di caratteri 19/45
  20. 20. Unità di misura  1 Bit = 2 valori (0,1)  1 Byte = 8 Bit (2^3 bit)  1 Kilobyte [Kb] = 1024 Byte (2^10 bit)  1 Megabyte [Mb]= 1024 Kb (2^20 bit)  1 Gigabyte [Gb] = 1024 Mb (2^30 bit)  1 Terabyte [Tb] = 1024 Gb (2^40 bit) 20/45
  21. 21. Organizzazione dei dati  Tutti i dati all’interno del pc sono contenuti nell’Hard Disk (“a piatti” o quelli di ultima generazione “a stato solido”)  Prima di essere utilizzati, devono essere formattati
  22. 22. File e Cartelle 22/45
  23. 23. Differenza fra file e software  Software: Sono quei programmi che consentono di creare dei file  File: Sono i documenti creati e che possono essere modificati o letti dai software
  24. 24. Tipi di file  Documenti  Canzoni / Filmati  Immagini  Archivi  Eseguibili 24/45
  25. 25. Software
  26. 26. Tipi di software  Di sistema: sono tutti quei programmi che consentono al PC di funzionare correttamente (es. Sistema Operativo, Driver…)  Software Applicativo: Sono i programmi che l’utente può installare sulla propria macchina per eseguire il lavoro di tutti i giorni (es. Office, Winamp…) 26/45
  27. 27. GUI – Graphical User Interface  È l’unica parte di un programma che l’utente può vedere.  E’ attraverso la GUI che si può interagire con il programma 27/45
  28. 28. Sviluppo di un software  Analisi  Progettazione  Programmazione  Test 28/45
  29. 29. Reti Informatiche
  30. 30. Lan - Wan Hub LAN (Local Area Network ) WAN (Wide Area Network ) 30/45
  31. 31. Vantaggi delle reti  Poter condividere file  Poter stampare da un’unica stampante di rete  Poter utilizzare stesse applicazioni su più PC contemporaneamente 31/45
  32. 32. Intranet, Extranet  Intranet: è la tipologia di rete che si crea quando si connettono più computer ad uno o più computer di rete Extranet: viene a crearsi con alcuni pc esterni alla rete abituale che però sono sempre connessi (es: clienti e fornitori) 32/45
  33. 33. Internet  Inventato nel 1960  Gestito in base a protocolli  Si scambiano i dati attraverso pacchetti TCP/IP  Le risorse si identificano attraverso IP (x.x.x.x)  Traduzione di indirizzi web a IP attraverso DNS
  34. 34. Servizi di Internet  Posta elettronica (e-mail)  Gruppi di discussione (newsgroup)  Accesso a banche dati (www, World Wide Web)  Trasferimento di File (FTP, File Transfert Protocol)  Comunicazione in tempo reale (chat)  Teleconferenza  Conversazioni telefoniche (VOIP) 34/45
  35. 35. WWW: World Wide Web  È la rete mondiale di tutti i siti internet  Viene creata da Web master e Web designer  Si usano diversi linguaggi: HTML, php, java…  Per accedere ad Internet è necessario un Browser  Gli indirizzi prendono il nome di URL  Ogni indirizzo appartiene ad un dominio: .com .org .it .de .uk … 35/45
  36. 36. Internet Internet User Pc Web Server WWW User Pc User Pc 36/45
  37. 37. Rete telefonica e computer Tre tipologie di collegamento disponibili:  PSTN (Public Switched Telephone Network)  ISDN (Integrated System of Digital Network)  ADSL (Asymetric digital Subscriber Line) 37/45
  38. 38. Il computer nella vita di ogni giorno
  39. 39. Impieghi più comuni  Ufficio  Ospedali  Banche  Scuola  Telelavoro 39/45
  40. 40. Motori di ricerca e Posta elettronica  Motori di ricerca più famosi  www.google.com  www.yahoo.com  www.live.com  Client di posta elettronica  Su Pc  Su Internet 40/45
  41. 41. E-Commerce  Vantaggi: servizi disponibili 24 ore al giorno, opportunità di vedere un’ampia gamma di prodotti  Svantaggi: dover condividere informazioni private, scelta da un negozio virtuale, assenza di contatti umani, rischi legati a metodi di pagamento non sicuri 41/45
  42. 42. Salute, sicurezza e ambiente  Ergonomia (ambiente lavorativo)  Problemi di salute (schiena, polso, occhi)  Sicurezza (cavi, spine…)  Pc e ambiente (riciclo, componenti a basso consumo)
  43. 43. Sicurezza
  44. 44. Sicurezza dei dati  Problematiche di privacy  ID e Password  Backup dati  Rischi per la perdita di un portatile 44/45
  45. 45. Virus  Applicazioni Antivirus per la protezione dagli attacchi  Tipologie  Di Boot, Trojan, Worms, Spyware, Virus Generici  Uso di piccole accortezze per non infettarsi 45/45 A Pagamento Gratuiti
  46. 46. Diritto d'autore e aspetti giuridici  Copyright applicato a: Testi, grafica, musica  Uso e distribuzione di supporti protetti (CD, DVD…)  Ogni prodotto Software ha un numero di serie che lo identifica univocamente 46/45
  47. 47. Tipi di Programmi  Freeware: programmi gratuiti usabili per un periodo illimitato di tempo (es. “Quick Time”)  Shareware: programmi usabili solo per un determinato arco di tempo, dopo il quale si deve pagare un costo per poter proseguire (es. “Nero Burning Rom”)  Demo: programmi privati di alcune funzioni, ma comunque usabili per un periodo illimitato (es. alcuni giochi)  A Pagamento: la maggior parte del software in circolazione (es. “Microsoft Office”) 47/45

×