Digital scrapbook pages are a way to store and preserve memories online, with the ability to add photos, words, and backgrounds. They are easier to edit and share than traditional scrapbooks, with lower costs and no physical space required. However, they may be difficult for those who are not tech-savvy and can be lost or […]
Digital satellite systems deliver data for TV, internet, and radio via a small dish. They offer advantages over cable TV, such as less regulation and lower prices. They encode their signal and offer additional show data. In some areas, buyers act as illegal cable companies. Major US providers include Dish Network, Star, and DirecTV, with […]
Digital microscopes use a built-in camera to view and save magnified images of samples. They can be connected to a computer or have a built-in monitor. Digital magnification can be limited by the size of the viewing screen, but digital models have the added benefit of capturing and displaying images. They are often more affordable […]
E-commerce relies on public key cryptography and digital certificates to ensure secure transactions. Public key encryption uses SSL to encrypt data, while digital certificates bind a website’s public key to their identity for public trust. Certification authorities issue digital certificates, and browsers check them for anomalies. Phishing scams can hijack digital certificates or use self-signed […]
