Handheld computers are portable devices designed for easy use on the go. They typically feature a touchscreen interface and can perform various tasks such as browsing the internet, sending emails, and running applications. Common examples include smartphones and tablets, which have become essential tools for communication and productivity. These devices often come equipped with built-in cameras, GPS, and various sensors, enhancing their functionality. Handheld computers can connect to Wi-Fi and cellular networks, allowing users to access information and services anytime, anywhere. Their compact size and lightweight design make them convenient for everyday use.