Mã QR – một mã ma trận được giới thiệu cách đây hơn mười năm bởi Tập đoàn Denso-Wave (Nhật Bản), ban đầu chỉ được sử dụng trong ngành công nghiệp ô tô, nhưng tính hữu dụng của nó nhanh chóng được đánh giá cao trong các ngành công nghiệp khác. Mã vạch chỉ là một nhãn quang học chứa thông tin về một đối tượng và việc đọc diễn ra với các thiết bị đặc biệt, trong trường hợp của chúng tôi là máy ảnh của thiết bị di động. Mã phản hồi nhanh trông giống như một sự sắp xếp ngẫu nhiên của các hình vuông nhỏ màu đen trên nền trắng.
Mã vạch hai chiều này được tìm thấy ở khắp mọi nơi trong cuộc sống hiện đại – trong các trung tâm mua sắm trên các gói sản phẩm, trên các trang của các ấn phẩm in và trên các nguồn Internet. Sử dụng thông tin được mã hóa trong mã QR, một người có thể nhanh chóng truy cập vào một tài nguyên cụ thể, liên kết của tài nguyên đó được viết trong mã, đọc email, tin nhắn văn bản, tìm ra tọa độ, v.v. Trong hầu hết các điện thoại thông minh và máy tính bảng hiện đại, một chương trình đọc mã vạch có trong hệ thống theo mặc định. Nhưng sự tiện lợi và chức năng của các tiện ích như vậy không phù hợp với tất cả người dùng.
Trong những trường hợp này, phần mềm thay thế sẽ giải cứu, vì vậy tiện ích QR & amp; Máy quét mã vạch sẽ cho phép bạn đọc nhanh chóng và chính xác bất kỳ mã vạch nào cho phép, chẳng hạn như tự động kết nối với mạng Wi-Fi, truy cập URL, đọc một số duy nhất của ấn bản sách ( Số Sách Tiêu chuẩn Quốc tế) , và chỉ cần xem thông tin đầy đủ về sản phẩm đã chọn. Có các chức năng hữu ích trong chương trình như bật đèn flash, tự động lấy nét, đảo ngược mã vạch, xem toàn bộ lịch sử quét.
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