Podcast
Questions and Answers
What is the primary function of a scanner?
What is the primary function of a scanner?
- To digitize images for computer editing and display (correct)
- To enhance the resolution of printed images
- To print hard copies of documents
- To facilitate communication between network devices
Which statement best describes the difference between a photocopy machine and a scanner?
Which statement best describes the difference between a photocopy machine and a scanner?
- Both devices operate at the same speed and image quality.
- A scanner can create editable and high-resolution images, while a photocopy machine cannot. (correct)
- A photocopy machine can store images directly on the computer.
- Both are used primarily to print images onto paper.
How does a router facilitate data transmission?
How does a router facilitate data transmission?
- By storing data on external devices
- By routing data packets to the correct location (correct)
- By enhancing the resolution of images
- By converting digital images into printed forms
Which feature distinguishes a printer from a scanner?
Which feature distinguishes a printer from a scanner?
What limitation does a photocopy machine have compared to a scanner?
What limitation does a photocopy machine have compared to a scanner?
Flashcards
Scanner
Scanner
A device that captures images from various sources, such as photographs, posters, magazines, and pages, and converts them into digital information for computer editing and display.
Printer
Printer
A device that creates hard copies of documents from a computer or other devices.
Router
Router
A network device that routes data packets between computers and other network devices, enabling communication on the internet.
Photocopy Machine
Photocopy Machine
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ATM Machine
ATM Machine
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Study Notes
Scanners
- Scanners are input devices that convert images to digital format for computers.
- Scanners digitize information from various sources like photographs, posters, magazines.
- Optical Character Recognition (OCR) converts documents to text that can be edited in a computer.
- Scanners operate relatively slower than photocopy machines.
- Scanned images can be stored on computers and sent via email.
- The scanned images can be edited.
Photocopy Machines
- Photocopy machines produce copies of documents at high resolution.
- Photocopy machines develop images of low resolution.
- Photocopy machines operate faster than scanners.
- The images from photocopy machines cannot be directly stored in the computer.
- The images must be sent to a computer.
- Images from photocopy machines cannot be edited.
Printers
- Printers are output devices used to generate hard copies (printed output) from files stored electronically.
- Printers take data from computer or other devices.
- Printers print various document types (e.g., text, images).
- Printers are external hardware devices.
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