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Because it has no facility to output information directly. Both types of scanner (document or bar-code) work in a similar way. They use a laser beam to scan information (either from a page or a bar-code) - and turn that information into a digital format. The computer (depending on the program) converts the scanned information either into a replica of the original (document) or compares the bar-code against its database.
Neither device is designed to outpuit information directly to the user - therefore theey are both input devices only.
What else can I help you with?
What alternative input device measures biometric identifiers?
Iris scanners and fingerprint scanners are alternative (biometric) input devices for computers.
What are the devices which can act act as input as output?
If you mean, "what devices can act as input and output?" then the answer is Touchscreens. Multifunction scanners/printers DO NOT count.
Information system input devices?
Input devices transfer data to an information system and the system processes the data. There are manual input devices and direct data entry devices that are used. Manual devices include keyboards and scanners. Direct data entry devices include smart cards and optical mark recognition.
Are scanners an input or output device?
Scanners are input devices. They take the data from text or photos and convert it to information the computer can use. Scanners are often a part of combination devices that include printers, and printers are output devices. The scanner portion sends what is on the page to the computer, and the printer portion takes what is in the computer and provides output in the form of a printed page.
How do computers get information?
Computers get information through various input devices such as keyboards and barcode scanners. Also, there are devices that can be for either input or output, such as disc drives and tape drives.
Is image setter is an input or output device?
Scanners are input devices. They are taking data into a computer, like a photo or text or reading a barcode etc.
What is a port that can be used by many different input output devices such as keyboards printers scanners and digital cameras called?
A USB port
What are the differents input devices of a computer?
Input devices that are commonly used on computers include mice, keyboards, scanners, joysticks and trackballs. Computer hardware is made up of input, output, processor and storage.
What are Monitor and printers are example of?
They are peripheral devices that attach to standalone computers (obviously monitors are built-in in laptops and tablets).They are also all input-output devices, along with mice, scanners, and card readers.Peripheral Devices.
What is the most appropriate input divices?
The most appropriate input devices depend on the specific needs and context. However, commonly used input devices include keyboards and mice for general computing, touchscreen displays for mobile devices, and game controllers for gaming consoles. Other specialized input devices include scanners for digitizing physical documents and microphones for voice input. Ultimately, the appropriateness of an input device is determined by its ability to effectively and efficiently capture user input for the intended task.
What are keyboards monitors and printers all examples of?
They are peripheral devices that attach to standalone computers (obviously monitors are built-in in laptops and tablets).They are also all input-output devices, along with mice, scanners, and card readers.Peripheral Devices.
What are the devices outside a computer that accept data and transfer it to the CPU?
Devices outside a computer that accept data and transfer it to the CPU are known as input devices. Common examples include keyboards, mice, scanners, and microphones, which allow users to input various forms of data. These devices convert user actions or physical data into signals that the CPU can process.
