Atoms in the same period have the same number of energy levels, which also helps scientists predict how an atom will interact with other atoms. In Dimitri Mendeleev's periodic table, elements in the same vertical group have _____.
NonVisual Desktop Access (NVDA) is a free, open source, portable screen reader for Microsoft Windows. The project was started by Michael Curran in 2006. NVDA is programmed in Python. It currently works exclusively with accessibility APIs such as Microsoft Active Accessibility, IAccessible2 and the Java Access Bridge, rather than using specialized video drivers to intercept and interpret visual information. It is licensed under the GNU General Public License.
SATA is a interface for storage devices intended to be used within the PC box itself or in a external box with USB. USB is a general purpose I/O interface for external equipment to the PC. It is often used for external disk drives as well as cameras, keyboards, mice, etc. eSATA is a SATA interface with external connectors on the PC designed for talking to external disk drives outside the case.