Big data is a term used to describe large, complex data sets that cannot be processed by traditional data processing systems. Big data is used in many applications, such as predictive analytics, fraud detection, and personalized marketing. Popular big data platforms include Hadoop, Spark, and Cassandra. Find out more Virtual reality (VR) is a technology that creates a simulated environment, typically experienced through a headset or other wearable device. VR is used in many applications, such as gaming, education, and healthcare. Popular VR platforms include Oculus, HTC Vive, and PlayStation VR.