tema 2 input device.ppt

8/11/2019 Tema 2 INPUT DEVICE.ppt

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PERIPHERAL DEVICE

Computer, are called peripheral

equipment and auxiliary devices

connected to the CPU independent

of a computer.

Both are considered peripheral units

or devices through which the

computer communicates with the

outside world as the systems thatstore or archive information, serving

as auxiliary memory from main

memory.

.

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PERIPHERAL DEVICE

TYPE

The peripherals can be

classified into four maincategories:

INPUT DEVICE

OUT PUT DEVICE

STORAGE DEVICE

COMMUNICATION DEVICE

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INPUT DEVICE

Are those that serve to enter data into the computer for

processing. The data are read from the input devices and

stored in main memory or internal. The input devices

convert information into electrical signals that are stored in

main memory.

Capture and send data to the device

Keyboard Microphone Joystick

Scanner Mouse Light Pen

Web cam



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Mouse

The main function is to transmit mouse movementsof your hand on a flat surface toward the computer

http://es.wikipedia.org/wiki/Archivo:Red_computer_mouse.jpg


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Scanner

A scanner is neither more nor less than the eyes ofthe computer. Its function is to capture images,which are almost identical

It is the most common device input. It is used to

enter commands, text and numbers

Keyboard

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Peguero
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Light Pen

Pointing device that enables you to hold on the

screen (photochromic) a pen that is connected to

the computer with a click at the top or a sidebutton by which you can select information

displayed on the screen

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Micrfonos

Responsible for transforming acoustic energy intoelectrical energy, enabling therefore the recording,storage, transmission and electronic processing of audiosignals.

http://www.pcdoxx.cl/catalog/images/productos/accesorios/microfono-base-pctronix.jpg


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Outpu Device

Output peripherals are devices that display or projectinformation to the outside of the computer. Most are toinform, alert, report, plan or give the user someinformation, in the same way are responsible forconverting the electrical impulses in human-readableinformation.

Some examples are: Monitor

Printer

Speakers

Projector



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Proyector

A device that plays on a movie screen previouslyprepared reconstituting the sensation of

movement.

http://www.arrienda.cl/arrienda_proyector01_max.gif


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Monitor

It is the device that shows the images generated by thecomputer's video adapter or computer. The term monitor

usually refers to the video screen and its casing. Themonitor connects to the video adapter with a cable.Obviously, it is the screen where the information issupplied by the computer

http://images.google.com.do/imgres?imgurl=http://informatica-practica.net/wordpress/wp-content/2008/08/dell-monitor_sp2008wfp.jpg&imgrefurl=http://informatica-practica.net/wordpress/index.php/2008/08/07/pc-5%25C2%25AA-entrega/&usg=__3TvIA2wAaTu26GS0huOiWul8Ge8=&h=380&w=300&sz=21&hl=es&start=5&sig2=1Er4JoSCElhTpxvDbhD9zg&um=1&tbnid=aOZ9ZzMXN1oQzM:&tbnh=123&tbnw=97&prev=/images%3Fq%3DMONITOR%26hl%3Des%26um%3D1&ei=CZR8SoWTCYOtlAfbsr2DAghttp://images.google.com.do/imgres?imgurl=http://www.dialogica.com.ar/digicom/monitor.jpg&imgrefurl=http://www.dialogica.com.ar/digicom/2008/10/pantalla-positiva.php&usg=__Kpe-nSrVvA3IVsH91uSJ0pcLEvk=&h=500&w=500&sz=54&hl=es&start=2&sig2=TvIS1RxoGF90c1IwuKPXig&um=1&tbnid=8vzCIy4O6or1WM:&tbnh=130&tbnw=130&prev=/images%3Fq%3DMONITOR%26hl%3Des%26um%3D1&ei=CZR8SoWTCYOtlAfbsr2DAg


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Printer

As its name suggests, the printer is a computerperipheral used to present information in paper

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Speakers

It is responsible for converting digitalinformation processed by our team (1s and 0s)to analog data, or sounds to be played onspeakers connected to the sound card itself

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STORE DEVICE

are devices that store data and information. RAM can notbe considered a storage device, and that his memory isvolatile and temporary.Inside a Hard Drive.

They are responsible for saving the data that makes use ofthe CPU so that it can make use of them once they have

been removed from the main memory, as it is cleared each

time the computer is turned off. They can be internal, suchas a hard drive or removable, such as a CD. The mostcommon are: Hard Drive, Floppy disk, Flash or USBMemory, Computer tapes, Diskettes.



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Communication Device

Peripherals are in charge of communicating with othermachines or computers, either to work together, or to sendand receive information.

Its function is to enable or facilitate the interaction betweentwo or more computers, or between a computer and otherexternal peripherals to the computer. Among them are thefollowing:

Modem Network Interface Card Switch Router

Wireless Card Bluetooth Card


tema 2 input device.ppt

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