Chapter 6

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Questions and Answers

What type of scanner uses photo-electric cells to read bar codes?

Card reader

Character recognition device

Optical scanner

Bar code reader (correct)

Which type of card reader requires a chip to be inserted for reading information?

Magnetic card reader

Optical card reader

Chip card reader (correct)

Smart card reader

Which type of RF identification technology allows reading from several yards away?

RFID readers (correct)

Bar code readers

Optical scanners

Card readers

What is the main function of UPC bar codes?

Automated checkout in grocery stores Signup and view all the answers

Which of the following is NOT a type of optical scanner mentioned?

RFID scanners Signup and view all the answers

What is the typical education requirement for a technical writer?

Associates or bachelor's degree in Communications or related field Signup and view all the answers

What is the expected annual salary range for technical writers?

$43,000 to $88,000 Signup and view all the answers

For which type of job can one work as a technical writer?

Government agencies Signup and view all the answers

Which of the following best describes the Internet of Things?

Devices that can connect and communicate with each other Signup and view all the answers

What feature is commonly found in smartwatches?

Ability to count and share the number of steps Signup and view all the answers

What is considered input in computing?

Any data or instructions entered into a computer Signup and view all the answers

Which of the following is NOT an example of an input device?

Printer Signup and view all the answers

What type of keyboard is primarily used with mobile devices?

Virtual keyboard Signup and view all the answers

Which of the following devices is used for image capturing?

Optical scanner Signup and view all the answers

Output devices are responsible for converting data into which form?

Letters, numbers, sounds, and images that people can understand Signup and view all the answers

Which of the following best defines a combination input and output device?

Devices that can both input and output data Signup and view all the answers

What aspect of computing do ergonomics primarily focus on?

Minimizing physical damage to users Signup and view all the answers

Which of these are considered audio-input devices?

Microphone and sound card Signup and view all the answers

What is a primary function of a touch screen?

It enables users to select actions by touching it with a finger or stylus. Signup and view all the answers

Which feature distinguishes an optical mouse from other types of mice?

It emits and senses light to detect movement. Signup and view all the answers

How does handwriting recognition software operate?

It translates handwritten notes into a machine-readable form. Signup and view all the answers

What is a characteristic of gaming controllers compared to a traditional mouse?

They offer programmable buttons and higher precision. Signup and view all the answers

Which of the following types of mice is battery operated and uses radio waves?

Wireless mouse Signup and view all the answers

What is the main purpose of scanning devices?

To convert scanned text and images into processable forms. Signup and view all the answers

What is a distinguishing feature of traditional keyboards?

They have a standard layout of 101 keys with additional features. Signup and view all the answers

Which type of pointing device allows for pinch gestures in addition to standard touches?

Touch screen Signup and view all the answers

What characteristic of ink-jet printers primarily contributes to their affordability and quiet operation?

Spraying ink at a high speed Signup and view all the answers

Which printer type is specifically designed for creating detailed outputs such as maps and architectural drawings?

Plotters Signup and view all the answers

What is a common disadvantage of multifunctional devices (MFD) compared to single-function devices?

Lower quality output Signup and view all the answers

What type of technology is primarily used in wireless headphones to transmit audio signals?

Digital compression techniques Signup and view all the answers

Which of the following types of printers operates by applying heat to print on heat-sensitive paper?

Thermal printers Signup and view all the answers

Drones are classified as which type of device?

Combination input and output devices Signup and view all the answers

Which description accurately captures the function of cloud printers?

Printers that connect to the Internet to provide services Signup and view all the answers

What is the primary role of speakers and headphones in audio devices?

To translate audio information into understandable sounds Signup and view all the answers

What technology allows e-book readers to produce images that reflect light?

e-ink technology Signup and view all the answers

Which type of monitor is known for using backlighting technology that is more advanced than traditional LCD?

Light Emitting Diode (LED) Signup and view all the answers

What is a characteristic feature of flat-panel monitors compared to older models?

Portable and thin design Signup and view all the answers

Which of the following devices enables the display of images from a traditional monitor onto another surface?

Digital Projector Signup and view all the answers

What type of output do monitors primarily provide?

Visual images Signup and view all the answers

Which category of printers translates processed information into a physical format?

Printers Signup and view all the answers

What is a noticeable advantage of e-book readers over traditional printed books?

They can hold thousands of e-books Signup and view all the answers

Which type of monitor allows for touch or gesture input?

Flat-panel monitor Signup and view all the answers

What does the term 'resolution' in the context of monitor features refer to?

The quality and sharpness of displayed images Signup and view all the answers

Which of the following is NOT a type of flat-panel monitor?

Cathode Ray Tube (CRT) Signup and view all the answers

Study Notes

Input Devices

Input devices translate data, like numbers, letters, and gestures, into a format computers understand.
Keyboards are used for typing text.
Mice and pointing devices allow selection and navigation.
Scanning devices translate images and text into digital form, including optical scanners, card readers, bar code readers, RFID readers, and character/mark recognition devices.
Image capturing devices, like digital cameras and webcams, create images.
Audio input devices, like microphones, convert sound into digital data. Voice recognition systems use microphones, sound cards, and special software.

Output Devices

Output devices convert digital data into a form humans can understand, presenting information as text, graphics, photos, audio, and video.
Monitors display visual information (flat-panel, LCD, LED, OLED).
Printers output information on paper (inkjet, laser, 3D, cloud).
Audio output devices translate digital audio information into sounds (speakers, headphones).

Other Input/Output Devices

Combination devices (multifunctional devices, headsets).
VR headsets, and controllers use combination of input and output functions.
Drones and Robots are also input/output devices.
Smartphones, Tablets, and Laptops are all examples of devices combining input and output.

Monitor Types

Flat-panel monitors are portable, thin, and use less power.
Types include LCD, LED, and OLED.

Printer Types

Inkjet printers spray ink.
Laser printers use a laser beam to produce images.
3D printers build shapes by layering materials.
Cloud printers operate via Internet.
Thermal printers use heat to produce images.
Plotters are specialized printers for large drawings/maps/etc.

Audio/Video Devices

Audio and video devices translate audio information into a form humans can understand (sounds).
Speakers, headphones, and Bluetooth technology are common examples.

Ergonomic Considerations

Ergonomic design prioritizes user comfort and reduces physical strain.
Laptops, tablets, and smartphones present ergonomic challenges due to their portability and design.
Factors to minimize discomfort include correct posture, device placement, and task fitting.

Careers in IT

Technical writers create manuals and other documents translating complex technical information into easily understandable formats for various industries, research establishments and government organizations.

Future Technology

Internet of Things (IoT) devices, including smartwatches and web-connected cars, can monitor and share user data.

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Description

This quiz explores the essential roles of input and output devices in computing. It covers various types of devices, such as keyboards, mice, monitors, and printers, detailing how they translate and present data for user interaction. Test your knowledge on how these devices operate and their importance in a computer system.