
Apple Inc. is an American multinational technology company that specializes in consumer electronics, computer software and online services. Apple is the largest information technology company by revenue (totaling $365.8 billion in 2021) and, as of January 2021, it is the world's most valuable company, the fourth-largest PC vendor by unit sales[9] and fourth-largest smartphone manufacturer. It is one of the Big FiveAmerican information technology companies, alongside Amazon, Alphabet (Google), Meta (Facebook), and Microsoft.