# data[].attributes.custom_properties.GZnvLga8
PROS : Saves Time,  Barcode scanners provide a rapid and effective means of data extraction and entry, significantly speeding up workflows. Increases Accuracy, Scanning barcodes is far more accurate than manual data entry.  CONS : Connectivity Constraints, Many handheld barcode scanners have limited connectivity options. Limited Range, Handheld barcode readers typically have short scan ranges, requiring users to hold them close to the barcode for accurate reading.

# data[].attributes.custom_properties.Id4NMc6k
barcode scanners work by illuminating barcodes with light, capturing reflected signals through sensors, converting these signals into binary code via decoders, and finally interpreting this data for practical use in business operations.

# data[].attributes.custom_properties.p2gDvo0k
Barcode scanners are essential tools utilized across various industries for multiple purposes. 

# data[].attributes.custom_properties.GZnvLga8
very cheap can be use by any object low image clarity compared to others

# data[].attributes.custom_properties.Id4NMc6k
an input device that consists of two conductive layers top layer is made of flexible polyester material two layers are separated by air when screen is pressed the 2 layers make contact thus completing the cicut 

# data[].attributes.custom_properties.p2gDvo0k
cash registers, information kiosks and medical equipment 

# data[].attributes.custom_properties.GZnvLga8
PROS : Accuracy, Optical mice can track movements with high precision and accuracy, especially on smooth and non-reflective surfaces. Reliability, Since optical mice do not have any moving parts, they are less likely to wear out or break down over time. CONS : Sensitivity Issues, Some users may find optical mice too sensitive or insufficiently sensitive for certain tasks. Surface Compatibility,  Optical mice may struggle on glossy or reflective surfaces such as glass or mirrors, which can cause erratic cursor movements due to improper light reflection.

# data[].attributes.custom_properties.Id4NMc6k
used for pointing and selecting areas on a display

# data[].attributes.custom_properties.p2gDvo0k
versatile input device commonly used in various applications due to its precision and ease of use

# data[].attributes.custom_properties.GZnvLga8
advantage: it is widely used and compatible with almost all computer devices. disadvantage: its not very portable.

# data[].attributes.custom_properties.Id4NMc6k
each switch below each key of the keyboard transmits electrical currents into the computer when pressed, which are then read by the cpu. 

# data[].attributes.custom_properties.GZnvLga8
Pros: higher resolution compared to 2D scanner, more precise Cons: expensive

# data[].attributes.custom_properties.Id4NMc6k
A laser is scanned across an object. 2 sensors detect distance from laser to object, creating point cloud, which is then processed into a 3D representation of an object. Most relies on tomography, which involves taking images in very thin slices less than 0.1 mm thick.

# data[].attributes.custom_properties.p2gDvo0k
Industrial and medical(for example, MRI scanning)

# data[].attributes.custom_properties.GZnvLga8
Pros: Intuitive interface, Enhanced user experience, .Increased functionality, Cons: susceptible to damage, hygiene concerns, higher cost and limited precision

# data[].attributes.custom_properties.Id4NMc6k
Touchscreens use a combination of hardware and software to detect and respond to touch input. Capacitive Touchscreens, These screens have a layer of conductive material that can detect changes in capacitance. When you touch the screen, your finger disrupts the electrical field, causing a change in capacitance. The controller can then determine the location of the touch based on the changes in capacitance. and Infrared Touchscreens, These screens use a grid of infrared light emitters and detectors. When you touch the screen, the infrared light is interrupted, allowing the controller to determine the location of the touch.

# data[].attributes.custom_properties.p2gDvo0k
they are usually used as consumer electronics for example, smartphones, tablets, laptops, and TVs often use touchscreens for navigation and interaction.

# data[].attributes.custom_properties.GZnvLga8
advantages: they will never run out-not even after the sun explodes. disadvantages: QR codes have a limited space to store data.

# data[].attributes.custom_properties.Id4NMc6k
The scanner's camera or optical sensor detects the light reflected from the QR code, and analysis the pattern to extract the data.

# data[].attributes.custom_properties.GZnvLga8
can be easy to break if not careful and easy to carry 

# data[].attributes.custom_properties.Id4NMc6k
The vibrations caused by sound waves cause a coil to move around a magnet, resulting in electromagnetic field changes. These tiny changes are converted by a microprocessor and an analog-to-digital convertor (ADC) into a digital representation of the sound.​

# data[].attributes.custom_properties.p2gDvo0k
To record voices, music, radio, tv, videos, telephone, and phone calls

# data[].attributes.custom_properties.GZnvLga8
Pros: takes up little physical space Cons: low resolution compared to 3D scanner

# data[].attributes.custom_properties.Id4NMc6k
The focused image falls on to a light-sensitive sheet made up of thousands of pixels which record the light intensity or color falling on each pixels. The information is then stored as an image in the computer’s memory.

# data[].attributes.custom_properties.p2gDvo0k
To scan photos, convert documents/photos in to digital format, photocopy or send a fax

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This exhibit demonstrates the mouse, an input device that allows users to interact with their computer systems by clicking, pointing, and dragging. Its fundamental working mechanism involves detecting two-dimensional motion relative to a surface.

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Optical or laser sensors detect movement and translate it onto the screen. 

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Controlling the cursor and objects around the screen

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Welcome to our Virtual Device Museum Padlet! Please follow the instructions below to complete the activity. If you have any questions, please ask your teacher for help.
• Choose an input or output device to research.
• Create a post that serves as a virtual museum exhibit for your chosen device.
• Include an image or video of the device in your post.
• Fill in all the required information about your device in the custom fields.
• Review at least 3 other students' exhibits and leave a comment or question on each.