WHAT IS A HOLOGRAPHIC VERSATILE DISC?
A Holographic Versatile Disc is an advanced optical disc technology still in the research stage. It employs a technique known as collinear holography, whereby two lasers —one red and one blue-green are collimated in a single beam. These disks have the capacity to hold up to 3.9 terabytes (TB) of data. The HVD also has a transfer rate of 1 Gbit/s. WHAT IS A PICONET? A piconet is a collection of devices connected via Bluetooth technology in an ad hoc fashion. A piconet starts with two connected devices, such as a portable PC and cellular phone, and may grow to eight connected devices. All Bluetooth devices are peer units and have identical implementations. However, when establishing a piconet, one unit will act as a master and the other as slave for the duration of the piconet connection. WHAT IS A MICROCHIP? WHAT IS AN E-R DIAGRAM? The E-R diagram (entity-relation) is a diagrammatical representation of a data model based on a perception of the real world that consists of a collection of
