What's With All the Squares? QR Codes A QR code is comprised of an array of squares, some of which are used for the image sensor to position itself (that's the large squares on three of the corners), while the rest of the cells contain version and format information as well as the data itself, of course, along with error correction coding. Whereas most of the barcodes you come across are one-dimensional, such as UPC labels on items at the store, QR codes are two-dimensional and offer many advantages. For instance, QR codes can be scanned in any direction instead of only one, they can contain thousands of alphanumeric characters versus only a dozen or so, and when configured with a high level of error correction they are particularly capable at continuing to function after sustaining damage. The more error correction a QR code has, the less data it can store and incidentally, the more data that is stored within a QR code, the more squares it will have. More squares are a
In yet another development, Facebook-owned messaging app, WhatsApp has rolled out yet another feature that would allow the users to individually reply to members in a group without others knowing about it
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TCS conducts online test to hire engineering graduates; move aimed at covering larger talent base While TCS is moving toward a digitised process of hiring, the company is not ending the campus recruitment process, says the company. IT services bellwether, TCS, will focus more on online tests to recruit fresh engineering graduates. The move could be of great significance for students who would otherwise have been deprived of campus placements because of their colleges. According to a report in The Times of India, TCS held an all-India online test - called the National Qualifier Test. The Bengaluru-headquartered firm is following it up with video interview, or a face-to face interview, depending on applicant's location. "While TCS is moving toward a digitised process of hiring, the company is not ending the campus recruitment process," the company said in a statement. The online recruitments will enable the IT firm to reach out to a far larger tal
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