Capabilities & Characteristics of                   Prepared by:                   Jane L. Garay
Storage, Output, Communication
Storage Hardware Storage capacity of computer is expressed in  bits, bytes, kilobytes, megabytes, gigabytes,  terabytes, ...
Bit             = short for binary digit (0s and 1s)Bytes           = 8 bits (usually represent one character, digit, or...
Primary StorageRAMRAM (random access memory)is the place in a computer wherethe operating system, applicationprograms, an...
Secondary StorageAny storage device designed to retaindata and instructions (programs) inrelatively permanent form.
Tape Storage (magnetic tapes, cartridge tape units)      Magnetic Tapes are especially popular      for back-up storage....
Hard Disks    Rigid metal platters that hold data as magnetized    spots.
Optical Disks    CD-ROM- Compact Disk Read-Only Memory    CD-R- Compact Disk Readable    CD-RW- Compact Disc Re-writable ...
Mass Storage Device   USB Flash Drive- are typically removable   and rewritable and muck shorter than a   floppy disk.
Solid-State DriveA data storage device that uses solid-statememory cards to store persistent data.
Output HardwareDevices that translate informationprocessed by the computer into aform that humans can understand.
Two Main Output DeviceMonitorPrinter
MonitorThe most common of all outputdevices.It provides a soft copy of theinformation to be displayed- that is, it isnot...
Informationdisplayedon a monitor usesdots, or pixels.                    Ex. of monitor
PrinterA printed or hardcopy is produced bymeans of computer sending instructionsto the printers.Essential in outputting...
Two main categories of PrinterImpact     Print by striking the paper throughan inked ribbon.Non-Impact     Use methods o...
Ex. of Impact Printer     Dot matrix printer
Ex. of Non-impact Printers Ink-Jet Printer       Laser Printer
Communication HardwareIt facilitates the connectionbetween computers and betweengroups of connected computers(networks).
Modem (modulator-demodulator)Allows transmission of data from onecomputer to another via telephone lines.Convert a compu...
Modem
Fax-modemA modem with a fax capability.
Network Interface Card (NIC)Commonly used when computers arepart of LAN or connected to the internetusing broadband conne...
Network Interface Card (NIC)
Wireless Network Interface CardUsed for wireless connection to a LAN or theinternet.
The End..THANK YOU !!!
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Hardware & software

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Hardware & software

  1. 1. Capabilities & Characteristics of Prepared by: Jane L. Garay
  2. 2. Storage, Output, Communication
  3. 3. Storage Hardware Storage capacity of computer is expressed in bits, bytes, kilobytes, megabytes, gigabytes, terabytes, petabytes or exabytes.
  4. 4. Bit = short for binary digit (0s and 1s)Bytes = 8 bits (usually represent one character, digit, or symbol)Kilobyte (KB) = 1,024 BytesMegabyte (MB) = 1, 024 KBGigabyte (GB) = 1,024 MBTerabyte (TB) = 1,024 GBPetabyte (PB) = 1,024 TBExabyte (EB) = 1,024 PB
  5. 5. Primary StorageRAMRAM (random access memory)is the place in a computer wherethe operating system, applicationprograms, and data in currentuse are kept so that they can bequickly reached by thecomputers processor.
  6. 6. Secondary StorageAny storage device designed to retaindata and instructions (programs) inrelatively permanent form.
  7. 7. Tape Storage (magnetic tapes, cartridge tape units) Magnetic Tapes are especially popular for back-up storage.Diskette Storage (floppy disks, diskettes) Floppy Disks are probably the most common storage device, especially for users of PC.
  8. 8. Hard Disks Rigid metal platters that hold data as magnetized spots.
  9. 9. Optical Disks CD-ROM- Compact Disk Read-Only Memory CD-R- Compact Disk Readable CD-RW- Compact Disc Re-writable DVD-RW- Digital Versatile Disc Recordable WORM Disks- Write-Once-Read-Many
  10. 10. Mass Storage Device USB Flash Drive- are typically removable and rewritable and muck shorter than a floppy disk.
  11. 11. Solid-State DriveA data storage device that uses solid-statememory cards to store persistent data.
  12. 12. Output HardwareDevices that translate informationprocessed by the computer into aform that humans can understand.
  13. 13. Two Main Output DeviceMonitorPrinter
  14. 14. MonitorThe most common of all outputdevices.It provides a soft copy of theinformation to be displayed- that is, it isnot in printed form.
  15. 15. Informationdisplayedon a monitor usesdots, or pixels. Ex. of monitor
  16. 16. PrinterA printed or hardcopy is produced bymeans of computer sending instructionsto the printers.Essential in outputting the informationproduced by the system.
  17. 17. Two main categories of PrinterImpact Print by striking the paper throughan inked ribbon.Non-Impact Use methods other than strike toproduce the output.
  18. 18. Ex. of Impact Printer Dot matrix printer
  19. 19. Ex. of Non-impact Printers Ink-Jet Printer Laser Printer
  20. 20. Communication HardwareIt facilitates the connectionbetween computers and betweengroups of connected computers(networks).
  21. 21. Modem (modulator-demodulator)Allows transmission of data from onecomputer to another via telephone lines.Convert a computer’s digital signal intoanalog signals and vice versa.
  22. 22. Modem
  23. 23. Fax-modemA modem with a fax capability.
  24. 24. Network Interface Card (NIC)Commonly used when computers arepart of LAN or connected to the internetusing broadband connection.
  25. 25. Network Interface Card (NIC)
  26. 26. Wireless Network Interface CardUsed for wireless connection to a LAN or theinternet.
  27. 27. The End..THANK YOU !!!

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