The document discusses various common computer input devices. It describes graphics tablets, webcams, electronic whiteboards, pen input, barcode readers, microphones, joysticks, mice, keyboards and scanners. It provides details on how each device works and what it is used for, such as capturing audio with microphones or reading barcodes with barcode readers. Graphics tablets, pen input, electronic whiteboards and mice are mentioned as devices that allow entering information into a computer using a stylus or by moving a cursor on a screen.

1. Luis hernandez
Politecnico san Pablo

2. Competencias o resultados esperados
 Valoran los dispositivos de salida y entrada
 Identifican los diferentes dispositivos de entrada y de salida

3. Input device:
 In computing, an input device is a piece (part) of computer hardware equipment used
to offer data and control signals to an information processing system which
takes information in one form and processes it into another form such as a computer
or information artefact.

4. Input devices
1. Graphics tablets
2.Wedcam
3. Electronic whiteboard
4..Pen input
5. Barcode reader
6. Microphone
7. Joystick
8.Mouse
9. Keyboard
10.Scanner

5. Graphic table
 is a natural input device that
converts information from a
handheld stylus. The user uses
the stylus like a pen, pencil, or
paintbrush, pressing its tip on
the tablet surface.

6. Pen input
 a stylus (or stylus pen) is a small pen-shaped
instrument that is used to input commands to
a computer screen, mobile device or graphics
tablet.

7. Barcode Reader
 Is an optical scanner that can read
printed barcodes, decode the data
contained in the barcode and send the
data to a computer.
 It consists of a light source, a lens and a
light sensor translating for optical
impulses into electrical signals.

8. Electronic whiteboard
 An electronic whiteboard is
a hardware device that is similar
to a whiteboard that is found in
schools and businesses. It
transmits any information
written it to a computer or
multiple computers.

9. Mouse
 A small handheld device which is
moved across a mat or flat surface
to move the cursor on a computer
screen.

10. Wedcam
It is a cheap and simple video camera that is placed on
or next to the computer monitor.
Webcams are connected to send live and recorded
videos as well as image captures over the network to
one or more users.

11. Microphone
Is a device that captures audio by converting sound waves into an
electrical signal.

12. Types of
scanners
Flatbed Scanners
Portable Scanners
Drum Scanners

13. Scanner
 A scanner is an electronic device
which can capture images from
physical items and convert them
into digital formats.

14. A flatbed scanner
 Is an optical scanner which
makes use of a flat surface for
scanning documents.

15. Portable (handle) scanner
A scanner that is moved by hand over the material being captured. Handheld scanners are small and
less expensive than their desktop counterparts.

16. Drum scanner
 Is a type of scanner used to capture the
highest resolution from an image.
Photographs and transparencies are taped,
clamped or fitted into a clear cylinder (drum)
that is spun at speeds exceeding 1,000 RPM
during the scanning operation.

17. The Keyboard
 Is an input device used to enter characters
and functions into the computer system by
pressing buttons, or keys.

18. The keyboard
 Keyboard keys (buttons) typically
have characters printed on
them, and each press of a key
typically corresponds to a single
written symbol.
 While most keyboard keys
produce letters, numbers or signs
(characters), other keys or
simultaneous key presses can
produce actions or execute
computer commands.

19. Bibliografia
 https://es.wikipedia.org/wiki/Perif%C3%A9rico_(inform%C3%A1tica)
 https://es.wikipedia.org/wiki/Perif%C3%A9rico_de_entrada