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Ulazno izlazni
uređaji
Ulazni uređaji
 Ulazni uređaji služe za unos podataka u računar.
 U ulazne uređaje se ubrajaju:
 tastatura (keyboard),
 miš (mouse),
 mikrofon,
 skener,
 kamera,
 CD-ROM,
 DVD, hard disk itd.
Izlazni uređaji
 Izlazni uređaji služe za prikazivanje, štampanje,
pamćenje, razmenu i emitovanje podataka iz
računara.
 Izlazni uređaji su:
 monitor,
 štampač (printer),
 projektor
 zvučnici,
 CD-ROM, DVD, hard disk itd.
I/O uređaji
 Neki uređaji su ujedno ulazni i izlazni. Zato
ih zovemo jednim imenom I/O uređaji i to
su:
modemi,
mrežna kartica,
zvučna kartica,
monitor osetljiv na dodir
CD-RW, DVD
Memorija računara
Teme:
 Performanse koje utiču na brzinu računara
 Jedinice za mjerenje koje se korise u
informatici
 Memorija
Na perforsmanse računara utiče:
 Brzina procesora (Hz - herc)
 Veličina operativne memorije (B - bajt)
 Broj aplikacija koje se trenutno izvršavaju
na računaru – koje su aktivne
Hz
 Herc – broj operacija koje procesor izvrši u
jednoj sekundi
 1kHz = 1000 Hz
 1MHz = 1000 kHz
 1GHz = 1000 MHz
 Današnji procesori imaju obično 3 GHz
 Koliko je to operacija u sekundi?
B
 Bajt je jedinica kojom se izražava veličina memorijskog prostora
 Manja veličina od bajta je bit označava se malim slovom b
 8 b = 1 B
 1kB = 1024 B
 1 MB = 1024 kB
 1 GB = 1024 MB
 Današnja operativna memorija standardno dolazi u veličini od 4GB
 Koliko je to bita?
Memorija
Tipovi memorije
 ROM – memorija iz koje se podaci mogu
samo čitati
 RAM – memorija u koju se podaci mogu i
upisivati i čitati, koristi je procesor
 Spoljašnja memorija:
hard disk-uređaj koji piše, čita, briše i trajno
pamti podatke
CD,DVD, flash memorija

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03. UI i memorija

  • 2. Ulazni uređaji  Ulazni uređaji služe za unos podataka u računar.  U ulazne uređaje se ubrajaju:  tastatura (keyboard),  miš (mouse),  mikrofon,  skener,  kamera,  CD-ROM,  DVD, hard disk itd.
  • 3. Izlazni uređaji  Izlazni uređaji služe za prikazivanje, štampanje, pamćenje, razmenu i emitovanje podataka iz računara.  Izlazni uređaji su:  monitor,  štampač (printer),  projektor  zvučnici,  CD-ROM, DVD, hard disk itd.
  • 4. I/O uređaji  Neki uređaji su ujedno ulazni i izlazni. Zato ih zovemo jednim imenom I/O uređaji i to su: modemi, mrežna kartica, zvučna kartica, monitor osetljiv na dodir CD-RW, DVD
  • 6. Teme:  Performanse koje utiču na brzinu računara  Jedinice za mjerenje koje se korise u informatici  Memorija
  • 7. Na perforsmanse računara utiče:  Brzina procesora (Hz - herc)  Veličina operativne memorije (B - bajt)  Broj aplikacija koje se trenutno izvršavaju na računaru – koje su aktivne
  • 8. Hz  Herc – broj operacija koje procesor izvrši u jednoj sekundi  1kHz = 1000 Hz  1MHz = 1000 kHz  1GHz = 1000 MHz  Današnji procesori imaju obično 3 GHz  Koliko je to operacija u sekundi?
  • 9. B  Bajt je jedinica kojom se izražava veličina memorijskog prostora  Manja veličina od bajta je bit označava se malim slovom b  8 b = 1 B  1kB = 1024 B  1 MB = 1024 kB  1 GB = 1024 MB  Današnja operativna memorija standardno dolazi u veličini od 4GB  Koliko je to bita?
  • 11. Tipovi memorije  ROM – memorija iz koje se podaci mogu samo čitati  RAM – memorija u koju se podaci mogu i upisivati i čitati, koristi je procesor  Spoljašnja memorija: hard disk-uređaj koji piše, čita, briše i trajno pamti podatke CD,DVD, flash memorija