7 secret For Samsung Phone Codes
7 secret For Samsung Phone Codes
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The input unit of the computer system is used for feeding data and instructions to the computer
These data and instructions given to the computer are called as
Input and the device is used for giving input are called input unit or devices
Hence the devices that are used to input data into the computer are called input units or devices
the input devices of a computer are
Keyboard
Mouse
Scanner
Microphone
Joystick
Trackball
Etc tell them all you who bite, you know who Perdue are you click?
Mouse is a small device that a computer
User pushes across a desk
Surface in order to point it to a place on a display screen
and to select one or more actions to take from that position a
Mouse consists of a metal or plastic
housing or casing a
Ball that sticks out of the bottom of the casing and is rolled on a flat surface
one or more buttons on the top of the casing and a cable that connects the mouse to the computer as
the ball is moved over the surface in any direction a
Sensor sends impulses to the computer that causes a mouse responsive program to reposition a visible indicator
Called a cursor on the display screen
Scanner a scanner is used to copy pictures or other things and save them as files on the computer
Scanners are not just for scanning pictures
Scanners can read printed text and converted to files that you can manipulate with your word processing program
you can also scan a handwritten letter and send it by fax directly to somebody or
Put it in permanent storage on your hard drive
Joystick a
joystick is an in device consisting of a stick that pivots on a base and
Reports its angle or direction to the device
It is controlling they often have supplementary switches on them to control other aspects of the aircraft's flight
Many people use joysticks on computer games involving flight such as flight simulators
Microphone it is quite easy to convert the spoken word to a digital signal for computer input
the microphone converts audio signals to electrical waves and these can be converted by
electronic circuitry in the computer to digital form a
Microphone colloquially called a mic or mic is an acoustic to electric
transcender or sensor that converts sound into an electrical signal
Microphones are used in many applications such as telephones
Tape recorders karaoke systems hearing aids motion picture production
live and recorded audio engineering in radio and television broadcasting and in computers for recording voice
Speech recognition and for non acoustic purposes such as ultrasonic checking or knock sensors
barcode reader a
Barcode reader or barcode scanner is an electronic device for reading printed barcodes
like a flatbed scanner
It consists of a light source a lens and a light sensor translating optical impulses into electrical ones
additionally nearly all barcode readers contain decoder circuitry
analyzing the barcodes image data
provided by the sensor and sending the barcodes content to the scanners output port webcam a
Webcam is a video camera that feeds its images in real time to a computer or computer network often via USB
Ethernet or Wi-Fi
their most popular use is the establishment of video links permitting computers to act as video phones or
videoconference stations
The common use as a video camera for the world wide web gave the webcam its nature
other popular uses include security surveillance
computer vision video broadcasting and for recording videos
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