Stands for “Blu Ray Disc”, was developed for recording and playing back high-definition (HD) video and for storing large amounts of data.

It can be an optical disc produced by thirteen electronic devices and Computer companies for example TDK, and Dell, Hitachi, Hewlett-Packard, LG, Mitsubishi, Panasonic, Sony.

The blu ray was initially introduced and launched in the 2006 CES on January 4, 2006 and it is able to keeping upto 25 GB about the same-layer disc and 50 GB on the Dual Layer disk, each disc being the exact same size like a regular CD.

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The computer mouse as we know it today was invented and developed by Douglas Engelbart, with the assistance of Bill English, during the 1960’s and was patented on November 17, 1970