Peripherals
Miguel Senz de Santa MaraTechnology DepartmentIES El Batn
Devices
Keyboard
Mouse
Stick Memory
Printer
Screen
WebCam
Microphone
Modem
LAN Card
Wireless
Bluetooth
USB
Firewire
Parallel Port
Serial Port
Scanner
Camera
WiFi
Floppy
DVD
CD-Rom
MP3 Player
MP4 Player
PS2
Card Reader
Peripherals
Keyboard
Mouse
Stick Memory
Printer
Screen
WebCam
Microphone
Modem
LAN Card
Wireless
Bluetooth
USB
Firewire
Parallel Port
Serial Port
Scanner
Camera
WiFi
Floppy
DVD
CD-Rom
MP3 Player
MP4 Player
PS2
Ports
Card Reader
Peripherals
Keyboard
Mouse
Stick Memory
Printer
Screen
WebCam
Microphone
Modem
Scanner
Camera
Floppy
DVD
CD-Rom
MP4 Player
CD-Recorder
DVD-Recorder
Peripherals
Keyboard
Mouse
Stick Memory
Printer
Screen
WebCam
Microphone
Modem
Scanner
Camera
Floppy
DVD
CD-Rom
MP3 Player
MP4 Player
CD-Recorder
DVD-Recorder
Input
Output
Input/Output
Monitor
Speaker
Graphic Tablet
Screen Touch
Input Peripherals
How do input peripherals work?
When a user press a key, one electric switch is closed.
A chip detects that event and save it in a buffer.
When it's possible, the information goes out the buffer to be
encoded in zeros and ones, code which is sent to the computer
through the input port.
Processor receives the data and processes it as the application
or operating system may decide.
Userpressesa key
Buffer
Encoding
PS/2
Processor (CPU)
d
01100010
R3-C4
Keyboard
Output Peripherals
Output Peripherals Characteristics
The screen size is measured ever in INCHES.
Resolution is expressed as a product of pixels: 800 x 600, 1024
x 768, etc.
Printers are characterized by their speed (in pages per minute,
ppm) and their resolution (in dots per inch, dpi)
Input/Output Peripherals
Input/Output Peripherals
Connection
Interactive
Storing
Hard Disk
CD-Recordable
Modem
Ethernet Card
WiFi USB Stick
Interactive Gloves
Virtual Reality Helmet
Screen Touch
Memory Stick
DVD-Recordable
Bluetooth
Conclusion
Peripherals are devices which can be connected to the
computer.
They allow the introduction and exit of data.
We can sort them as:
Input Peripherals,
Output Peripherals, and
Input/Output Peripherals
Keyboard and Mouse are the most important Input Peripherals.
Cameras, Webcams and Scanners are Input Peripherals too.
Monitor and Printer are main Output Peripherals.
Hard Disk drives, Memory Sticks, Re-writeable Disks, and
external connections (Ethernet, Modem) are Input/Output
Peripherals.
