Computer data is measured in what unit?

The correct answer is based on the fundamental unit of digital information. A bit, which is short for "binary digit," represents the most basic unit of data in computing and telecommunications, reflecting a state of either 0 or 1. It is the building block for all other data measurements.

While other options like byte, kilobyte, and gigabyte illustrate larger data units as multiples of bits, understanding that a bit is the smallest and most fundamental unit of data is essential. A byte, for instance, typically comprises 8 bits, and kilobyte and gigabyte are further scaled measurements based on bytes (1 kilobyte equals 1,024 bytes, and 1 gigabyte equals 1,024 megabytes). Therefore, the bit serves as the foundational measurement in the context of computer data.