The internet is a worldwide system of connected networks that allows computers, phones, servers, and many other devices to exchange information. Although using the internet often feels instant, every visit to a website involves several steps involving your device, local network, service provider, and a remote server. What happens when you visit a website? First,…
Cybersecurity is the practice of protecting devices, accounts, networks, applications, and data from unauthorized access, disruption, theft, and misuse. It is important not only for large organizations but also for families, students, freelancers, and anyone who uses connected devices. Strong accounts Use a different, long password for every important account. A password manager can create…
Machine learning is a branch of artificial intelligence in which algorithms learn patterns from data and use those patterns to make predictions or decisions. Instead of writing every rule manually, developers provide examples and design a process that adjusts a model to fit useful relationships in the data. Training and testing A model is trained…
Artificial intelligence is the field of creating computer systems that perform tasks commonly associated with human intelligence, including recognizing patterns, understanding language, planning, generating content, and making predictions. How AI systems work Some systems follow rules written by programmers, while others learn patterns from large collections of examples. Modern AI often combines data, algorithms, statistical…
Cloud computing delivers computing resources such as storage, databases, networking, applications, and processing power over the internet. Instead of buying and maintaining every server locally, an organization can use shared infrastructure and request resources when they are needed. How cloud services work Cloud providers operate data centers filled with physical servers and networking equipment. Virtualization…