Digital Cameras and Biometric Input Quiz

True (A)

A larger sensor captures light more efficiently, resulting in better image quality, especially in low-light conditions.

<p>False (B)</p> Signup and view all the answers

<p>Speed (B)</p> Signup and view all the answers

<p>sensor</p> Signup and view all the answers

<p>Access control, identification</p> Signup and view all the answers

<p>Lenses = Larger lenses enhance image quality by capturing more light. Sensor size = Larger sensors capture light more effectively, improving performance in low-light conditions. Megapixels = The number of pixels in a sensor and is often used to describe image resolution.</p> Signup and view all the answers

<p>quality</p> Signup and view all the answers

<p>E-toll Roads = Scanning number plates for quick transaction on toll roads Website logins = QR Codes are scanned for webpage access Point of sale (POS) systems = Barcode scanning for fast checkout Document conversion = Scanned images can be converted to digital formats such as PDF for easy storage and sharing</p> Signup and view all the answers

<p>Touching the keys (D)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Virtual keyboards and projected keyboards</p> Signup and view all the answers

<p>screen</p> Signup and view all the answers

<p>Virtual keyboard = Displayed on a screen Projected keyboard = Projected onto a surface using laser or LED lights Physical keyboard = Has physical keys that are pressed</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>magnetic strip</p> Signup and view all the answers

<p>Microphone (B)</p> Signup and view all the answers

<p>To ensure the correct amount of cash is dispensed during withdrawals.</p> Signup and view all the answers

<p>Limited data types (C)</p> Signup and view all the answers

<p>Card Reader = Reads data from the magnetic strip on a bank card. Modem/Network Connection = Enables communication with the bank's computer. Touch Screen = Allows users to select options via touch. Money Counter = Counts dispensed cash to verify the correct amount.</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Sensors are generally more reliable and precise than human observation and recording.</p> Signup and view all the answers

<p>patient monitor</p> Signup and view all the answers

<p>Weather buoy = Monitoring ocean weather data Meter reader = Recording water consumption Hospital equipment = Monitoring patient vitals Research labs = Precise control in research experiments</p> Signup and view all the answers

<p>Limited data accessibility (B), Sensor failures (C), Difficult/expensive maintenance (D)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>Nuclear power stations require constant monitoring of critical environments for safety and control. Data collection devices can provide more accurate and reliable data without the risk of human error.</p> Signup and view all the answers

<p>Resolution (dpi) (C), Color depth (D)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Optical zoom uses physical lenses to enlarge the image, while digital zoom enlarges the image digitally, which can lead to blurriness and pixelation.</p> Signup and view all the answers

<p>higher</p> Signup and view all the answers

<p>Resolution (dpi) = The number of pixels in an image Color depth = The number of different colors a pixel can represent ISO rating = Sensitivity of the camera sensor to light Optical zoom = Uses lenses to magnify the image Digital zoom = Enlarges the image digitally, can lead to pixelation</p> Signup and view all the answers

<p>Lower initial cost compared to traditional input methods (D)</p> Signup and view all the answers

<p>Barcodes and RFID tags (C)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>The film detects the coordinates of a user's finger or stylus when pressed.</p> Signup and view all the answers

<p>Speeding up processing at payment points and improving stock control.</p> Signup and view all the answers

<p>pen</p> Signup and view all the answers

<p>natural</p> Signup and view all the answers

<p>Wi-Fi (A)</p> Signup and view all the answers

<p>Skimmers = Devices attached to card readers to copy card data Hidden cameras = Used to record PIN entry Wireless data download = Allows thieves to remotely retrieve stolen card data Copied card = A duplicate card created using stolen magnetic data</p> Signup and view all the answers

<p>By improving accuracy, increasing efficiency and providing a superior customer experience.</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>Laptop camera (A)</p> Signup and view all the answers

<p>resolution</p> Signup and view all the answers

<p>A scanner captures an image of a physical object, while a digital camera captures an image of a scene or subject.</p> Signup and view all the answers

<p>Scanner = Digitizing physical documents and images Digital camera = Capturing images of scenes or subjects Keyboard = Entering text and commands Microphone = Capturing audio data</p> Signup and view all the answers

<p>Displaying program options and choices (C)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Immediate feedback</p> Signup and view all the answers

<p>feedback</p> Signup and view all the answers

<p>Immediate feedback = Provides instant response to user actions Interaction = Enables user engagement with the computer Easy updates = Allows quick changes to displayed content Accessibility = Enhances usability for visually impaired users</p> Signup and view all the answers

Data provided to the computer for processing or instructions.

The process of obtaining digital pictures using various devices.

Devices that capture photos digitally, ranging in types and features.

The clarity and detail of the picture produced by a device.

Handling and manipulating input data to produce output.

Input devices that scan images and send them to a computer.

The measure of image detail in dots per inch; higher dpi equals better quality.

The number of colors a pixel can represent; higher color depth means better image quality.

Zooming using lenses to magnify an object while maintaining quality.

Zooming by enlarging an image, which can lead to loss of quality.

Devices that show visual information like screens and projectors.

Instant response provided to the user by display devices.

Displays that allow both input and output through touch.

Reasons for output such as feedback, records, and data sharing.

Adjustments for users with visual impairments on displays.

A compact camera designed for quick use with automatic settings.

A professional camera allowing for lens changes and control over settings.

Benefits include immediate photo viewing, editing, and video recording.

Larger sensors capture light better, enhancing image quality.

Larger lenses improve light capture, leading to better image detail.

An Automatic Teller Machine that provides banking services.

Device that reads the data from a bank card's magnetic strip.

Sensor that verifies the correct amount of cash dispensed by the ATM.

Built-in sensors in ATMs for detecting transaction types or specific inputs.

A graphical representation of data that needs a scanner to read.

Radio Frequency Identification tags storing data that can be read wirelessly.

Systems used in stores to process sales transactions.

Risks of theft and fraud when using ATMs.

Interactive screens allowing users to control actions with touch.

Capturing unique biological features for identification using scanners.

1. More secure than passwords, 2. Difficult to replicate, 3. Directly tied to individuals.

1. Takes time for scanning, 2. Image quality varies with originals.

Access control, securing personal info, identification, e-toll roads, website logins, POS systems.

1. Converts documents to digital formats, 2. Easy emailing, 3. Text recognition with OCR.

An on-screen keyboard displayed on devices like smartphones and tablets.

A keyboard created by projecting images onto a surface that users can touch.

The method of using touch to communicate with a keyboard or screen.

Different methods of text input that don't involve traditional keyboards.

Projected keyboards have limited effectiveness and are less popular than alternatives.

Tools that automatically gather and record data from various sources.

Sensors collect data automatically without human input.

Data collected by devices is often more accurate than human input.

Data can be collected in areas hard for humans to reach.

Malfunctions in sensors can lead to inaccurate data collection.

Only data detectable by sensors can be collected.

Devices that record household water consumption automatically.

Devices that collect ocean weather data like temperature and wind.

They combine a screen with a sensitive film that detects touch coordinates.

The ability of touch screens to recognize multiple simultaneous touches.

Input devices using a stylus for precision input on screens.

Benefits include faster interactions, greater accuracy, and improved customer experience.

Challenges include offline limitations and high equipment costs.

Enhanced through accurate tracking of sales and inventory provided by touch systems.