2023年9月12日 · A scanner is an electrical device can read and translate text, images, and other materials into a digital signal. This transforms the documents into a format that computer software programs can use to view and/or edit them.

3 天之前 · A scanner is an input device that scans an image, text, and any other document and converts it into a digital format. This digital document can be later viewed on a computer system. Simply put, a scanner is a hardware device that converts any hard copy into a …

2021年12月30日 · Scanners are computer input devices, which are used to scan documents, images, and text files. The documents which are scanned are converted into a digital format that can be further viewed and updated with the help of computer and editing software.

2022年2月7日 · A document scanner is an input device that converts text documents or images into softcopy that can be manipulated into the computer. They scan hardcopy of either text or images to convert them mostly into digital images.

2024年12月20日 · With hardware, a scanner, image scanner, or optical scanner is a hardware input device that optically "reads" an image and converts it to a digital signal. For example, a scanner may convert a printed picture, drawing, or document ( hard copy ) to a digital file that can be edited on a computer.

2025年1月11日 · Scanner input devices are electronic devices that capture and convert physical documents, images, or objects into digital data. They work by using a light source to illuminate the object being scanned, and then using a sensor to detect the reflected light.

2025年2月1日 · Our best overall photo scanner for most people is the Epson Perfection V39 II, and for document scanning, it's the Fujitsu SnapScan ix1600, but we stand behind all our recommendations. "Scan" our...

Scanners work by converting the image on the document into digital information that can be stored on a computer through optical character recognition (OCR). This process is done by a scanning head, which uses one or more sensors to capture the image as …

2025年1月30日 · Scanner, computer input device that uses a light beam to scan codes, text, or graphic images directly into a computer or computer system. Bar-code scanners are used widely at point-of-sale terminals in retail stores. A handheld scanner or bar-code pen is moved across the code, or the code itself is.

Scanner is an input device that accepts paper document as an input. Scanner is used to input data directly into the computer from the source document without copying and typing the data. The input data to be scanned can be a picture, a text or a mark on a paper.