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A barcode reader or barcode scanner is an optical scanner that can read printed barcodes, decode the data contained in the barcode on a computer. Like a flatbed scanner, it consists of a light source, a lens, and a light sensor for translating optical impulses into electrical signals. Additionally, nearly all barcode readers contain decoder ...
The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; the pattern of position detection was found and determined by applying the least-used ratio (1:1:3:1:1) in black ...
A barcode or bar code is a method of representing data in a visual, machine-readable form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. These barcodes, now commonly referred to as linear or one-dimensional (1D), can be scanned by special optical scanners, called barcode readers, of which ...
The company has announced it is ending support for older versions of Android and iOS as well as the rarely-used Windows Phone OS. WhatsApp runs on a huge range of operating systems, but even the ...
WhatsApp regularly runs tests that then do not make it into the public version of the app. Some users had reported that they had seen the change on one version of the app, but not on another, for ...
File:WhatsApp.svg. Size of this PNG preview of this SVG file: 512 × 513 pixels. Other resolutions: 240 × 240 pixels | 479 × 480 pixels | 767 × 768 pixels | 1,022 × 1,024 pixels | 2,044 × 2,048 pixels. Original file (SVG file, nominally 512 × 513 pixels, file size: 2 KB) This is a file from the Wikimedia Commons.
New update means Android users no longer have free storage for old messages, photos and videos WhatsApp warning over fee to keep old messages Skip to main content
WhatsApp (officially WhatsApp Messenger) is an instant messaging (IM) and voice-over-IP (VoIP) service owned by technology conglomerate Meta. [14] It allows users to send text, voice messages and video messages, [15] make voice and video calls, and share images, documents, user locations, and other content.
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