This document discusses recent technologies in computer science including E-ball technology, 5-pen PC technology, Project Loon, and Blue Brain. E-ball technology involves a spherical computer with wireless accessories. 5-pen PC technology allows using multiple pens as input devices on any flat surface. Project Loon aims to provide internet access to rural areas using balloons floating in the stratosphere. Blue Brain seeks to reverse engineer the human brain through supercomputers and nanobots.