I learned about four inventions this week and they were flash memory, CD-Rom, cellular phones, and the World Wide Web. First, I learned about flash memory. Fujio Masuka, born in Japan, in 1943, went to work with Toshiba and together they invented flash memory in 1981. Flash memory is a type of memory that erases data in units called blocks and rewrites data at the byte level. It became the dominant memory behind personal media players and then cell phones, enabling today’s smartphones.
Second, I learned about the CD-Rom. James Russell patented disc writing tech 1966, Phillips and Sony partnered in 1979 on standardized, and in 1985 Phillips and Sony invented the CD-Rom. A CD-ROM is a type of read-only memory consisting of a pre-pressed optical compact disc that contains data computers can read. It helped stimulate sales of new personal computers and stimulate new applications in computers.
Third, I learned about cellular phones. The cellular phone was developed by Bell Labs in 1947 but the concept of mobile phones emerged early. A cellular is a portable telephone that can make and receive calls over a radio frequency link. It changed the nature of communications and increased safety.
Finally, I learned about the world wide web. Tim Berners-Lee, born in England, in 1955 got a degree in physics and worked in the telecom industry. is a system of interconnected public web pages accessible through the Internet. It connected the world in a way that made it much easier for people to get information, share, and communicate.