In 1958, the Integrated Circuit was developed at Texas Instruments. Prior to 1958 Computing and Television required massive vacuum tubes. Integrated Circuits used circuit boards and component parts. In 1967, Texas Instruments developed the battery powered “pocket calculator”.
Electricity wasn't invented on a single day, but rather developed over centuries. Key milestones include Thales of Miletus' observations of static electricity around 600 BC, Benjamin Franklin's kite experiment in 1752, and Thomas Edison's invention of the incandescent light bulb in 1879.
In 1837, the electrical telegraph was invented by Sir William Fothergill Cooke and Sir Charles Wheatstone in England.
In 1876, the analog telephone was invented by Alexander Graham Bell and he received a patent for it on March 7, 1876.
The invention of alternating current (AC) power is a gradual process, with key developments and demonstrations occurring throughout the 19th century. While the basic principles of AC were understood earlier, the practical application of AC systems for power generation and transmission began with several milestones in the late 1880s and early 1890s.
In 1893, the Chicago World's Fair opened on May 1, 1893, and ran until October 30, 1893. It was a significant event that showcased alternating current (AC) power, which was a major milestone in the development of electricity.
In 1926, the invention of television is a complex timeline, but key milestones include: 1926, when John Logie Baird demonstrated a mechanical television system. In 1927, Philo Farnsworth successfully demonstrated an electronic television system, using a "image dissector" camera tube. In 1928, Farnsworth had further developed his system for a public demonstration.
Digital Signal Processing (DSP) didn't have a single "invention date" but rather evolved over time. Early groundwork was laid in the 1940s with key contributions like Shannon's work on communication theory and the development of digital computers like ENIAC. However, the field really took off in the 1970s with the advent of the MOS technology that allowed for single-chip microprocessors and then digital signal processor chips. A significant milestone was the introduction of the Speak & Spell toy by Texas Instruments in 1978, which used a DSP chip in a consumer product.
In
1973 the world's first portable cellular telephone, the Motorola DynaTAC, was
demonstrated on April 3, 1973.
In 1977, the first Personal Computers were introduced and included the TRS-80 available at Radio Shack.
In 1983, the Internet, as we know it, is considered to have been officially born on January 1, 1983. This is when ARPANET and the Defense Data Network transitioned to the TCP/IP standard, allowing different networks to communicate seamlessly. While the foundation for the Internet was laid earlier, with the first ARPANET message sent on October 29, 1969, the TCP/IP protocol adoption is widely considered the definitive birth date.
By 1996, the internet was already widely used and accessible, with millions of people connected.
In 2007, Apple introduced the first I-Phone.
Norb Leahy, Dunwoody GA Tea Party Leader
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