Categories
History

Santa Clara Valley

Return to Timeline of the History of Computers

Santa Clara Valley

“The Santa Clara Valley (the valley between Palo Alto and San Jose) was known as the “Valley of Heart’s Delight” because it was an endless expanse of orchards. Its agriculture was growing rapidly and, thanks to the invention of the refrigerated railroad car, it soon became the largest fruit production and packing region in the world. At one point there were 39 canneries in the valley, notably the San Jose Fruit Packing Company. At the peak, Chinese workers represented 48% of agricultural labor in the Santa Clara Valley. In 1863 the second railroad of California (after the pioneering Sacramento-Folsom of 1855) connected San Francisco to Mayfield (now Churhill Avenue in Palo Alto), a rough town popular with loggers (and later with students), and then to San Jose (in 1864) with a daily ride that took three and a half hours. The Menlo Park depot (built in 1867) was the major station on that route until Palo Alto began to grow.”

“The first transcontinental railroad was finally completed in 1869, linking the East Coast with Oakland (and then by ferry to San Francisco).”

“Perhaps the first “high tech” of the Bay Area came in the form of the aerial tramway invented in 1867 by the British-born Andrew Hallidie, a former gold miner and a bridge builder. Installed on high towers that frequently overlooked incredibly steep slopes, it was used across the Sierra Nevada to transport ore, supplies and miners. In 1873 Hallidie, using a similar design with help from German-born engineer William Ep, inaugurated the Clay Street Hill Railroad in San Francisco, the world’s first cable-car system.”

“At the time the Bay Area also had its flirt with oil, in fact predating the celebrated Edward Doheny well of 1892 that started the oil rush in Los Angeles. In 1879 a San Francisco banker and politician, Charles Felton, founded the Pacific Coast Oil Company (PCO). Within a few months the new company discovered large oil deposits on Moody Gulch, a few kilometers west of San Jose in the south bay. In 1880 PCO opened a refinery in the island Alameda, located near Oakland by the bay, i.e. with good access to the railroad terminal and the port. In 1902 Rockefeller’s Standard Oil, that two years earlier had acquired PCO, built a new refinery further north, in what is now Richmond, one of the largest and most advanced refineries in the world. In 1907 this refinery invented Zerolene, one of the most successful Standard Oil products.”

“The agricultural boom increased the demand for firewood and lumber, which made the fortune of the Santa Clara Valley Mill & Lumber Company of Felton. (But mostly the boom made the fortune of the “railroad barons”, who provided the main form of transportation for goods and people. In fact, Santa Clara county confronted the arrogant railroad empires in a case that became famous in and had consequences for the whole nation: in 1886 the Supreme Court of the USA decreed that corporations should have the same rights as persons, and therefore the Southern Pacific Railroad Company was entitled to deduct mortgage from its taxable income just like any household). And, of course, ports dotted the bay, notably Redwood City’s port that shipped lumber to San Francisco. Redwood City was located in the “Peninsula,” i.e. the stretch of land between San Francisco and Palo Alto.”

“Most of the Peninsula belonged to San Mateo County and was underpopulated. The county road from San Francisco to Belmont (north of Redwood City) served the wealthy San Franciscan who had bought a mansion in the countryside, typically for the summer, when San Francisco was blanketed by its famous fog. These mansions usually controlled a large tract of land and constituted self-sufficient agricultural units. The First World War (1917) helped populate one town, Menlo Park, just north of Palo Alto, where the Army established Camp Fremont to train tens of thousands of soldiers.”

“The Bay Area became one in the early years of the 20th century. In the 1880s Frank Smith, who had made his fortune with his borax mines in Nevada and Death Valley, settled in Oakland and began to create a network of railways that eventually (1903) would become the Key System, connecting San Francisco, Oakland and San Jose.”

“Not much else was going on in the sleepy bay accidentally discovered in 1769 by Spanish explorer Gaspar de Portola.”

“A lot was going in the rest of the US. The nation was booming with innovative ideas revolutionizing agriculture, industry, mining and transportation. Since there were more and more numbers to crunch, it is not surprising that in those years inventors devised several computing machines. The most influential were William Burroughs’ adding machine of 1885 and Herman Hollerith’s tabulator of 1890 (chosen for the national census). However, the new sensation at the turn of the century was electricity, which was enabling a whole new spectrum of appliances, from the light bulb to the phonograph.”

Fair Use Sources:

B07XVF5RSP

Categories
History

Silicon Valley After the Gold Rush

Return to Timeline of the History of Computers

After the Gold Rush

“Just over twenty thousand people lived in San Jose in 1900 compared with San Francisco’s 342,000, one of the top 10 cities of the USA. There is a good reason to argue that the San Francisco counterculture was founded in 1859 by Joshua Norton, an English Jew raised in South Africa who had emigrated to San Francisco at the time of the Gold Rush but ended up dealing with rice instead of gold, and who in that year declared himself Emperor of the United States. He wore Napoleonic clothes and issued his own currency. Not only was he respected by the citizens of San Francisco, but a huge crowd showed up at his funeral (he died penniless in 1880).”

“An Italian Jesuit priest named Giuseppe Neri, who had studied chemistry, built his own electrical lighting system using a device that had been used in the siege of Paris during the Franco-Prussian War of 1870, and demonstrated his futuristic system to the public in 1871, eight years before Thomas Edison (on the other coast) demonstrated his light bulb. In July 1876 (the centennial of the US declaration of independence) Neri lit San Francisco’s Market Street with arc lamps (the predecessors of the light bulb). In 1879 the California Electric Company (now known as PG&E) started providing electricity to customers in San Francisco, although that electrical power could be used only for arc lamps. San Jose followed suit and, eight years before Paris had the Tour Eiffel, the city erected the 72-meter tall San Jose Electric Light Tower, inaugurated in 1881 by newspaper publisher JJ Owen, the world’s tallest free-standing iron structure.”

“When James Lick died in 1876, he was the wealthiest man in California. His “high-tech” occupation had been piano manufacturing. He had in fact accumulated a little fortune by building and selling pianos in South America. In Peru he had met Domingo Ghirardelli, a maker of chocolate. When Lick moved to California, he invited Ghirardelli to set up shop in San Francisco, an advice that turned out to be golden: one year later gold was discovered near Sacramento, and both immigrants benefited from the economic boom. Lick was smart enough to buy land all around the Bay Area, while living in the small village of San Jose.”

“Lick was planning to use his fortune to build himself the largest pyramid on Earth, but somehow the California Academy of Sciences convinced him to fund the Lick Observatory, the world’s first permanently occupied mountain-top observatory, to be equipped with the most powerful telescope on Earth. That observatory, erected in 1887 on nearby Mt Hamilton, was pretty much the only notable event in the early history of San Jose.”

“Denis Kearney was the exact opposite of Emperor Norton. A populist agitator and demagogue during the economic depression of 1873-78, his rallies attracted thousands of people in San Francisco. He railed against the political establishment, the media, and the illegal Chinese immigrants (that constituted about 20% of the labor force). In 1878 his Workingmen’s Party won the elections and changed the state constitution to ban Chinese immigrants (a measure popular enough that in 1882 the US Congress passed the Chinese Exclusion Act).”

“In 1872 California’s governor Newton Booth, a saloon keeper turned lawyer, enacted the state’s first civil code, which was revolutionary in scope and reach. One section in particular made California unique: it banned “non-compete agreements”, i.e. it made it illegal for a company to require that its employees join a competitor or start their own firm to compete with their former employer.”

Fair Use Sources:

B07XVF5RSP

Categories
History Software Engineering

Boolean Algebra – 1854 A.D.

Return to Timeline of the History of Computers

1854

Boolean Algebra

George Boole (1815–1864), Claude Shannon (1916–2001)

“George Boole was born into a shoemaker’s family in Lincolnshire, England, and schooled at home, where he learned Latin, mathematics, and science. But Boole’s family landed on hard times, and at age 16 he was forced to support his family by becoming a school teacher—a profession he would continue for the rest of his life. In 1838, he wrote his first of many papers on mathematics, and in 1849 he was appointed as the first professor of mathematics at Queen’s College in Cork, Ireland.

Today Boole is best known for his invention of mathematics for describing and reasoning about logical prepositions, what we now call Boolean logic. Boole introduced his ideas in his 1847 monograph, “The Mathematical Analysis of Logic,” and perfected them in his 1854 monograph, “An Investigation into the Laws of Thought.”

Boole’s monographs presented a general set of rules for reasoning with symbols, which today we call Boolean algebra. He created a way—and a notation—for reasoning about what is true and what is false, and how these notions combine when reasoning about complex logical systems. He is also credited with formalizing the mathematical concepts of AND, OR, and NOT, from which all logical operations on binary numbers can be derived. Today many computer languages refer to such numbers as Booleans or simply Bools in recognition of his contribution.

Boole died at the age of 49 from pneumonia. His work was carried on by other logicians but didn’t receive notice in the broader community until 1936, when Claude Shannon, then a graduate student at the Massachusetts Institute of Technology (MIT), realized that the Boolean algebra he had learned in an undergraduate philosophy class at the University of Michigan could be used to describe electrical circuits built from relays. This was a huge breakthrough, because it meant that complex relay circuits could be described and reasoned about symbolically, rather than through trial and error. Shannon’s wedding of Boolean algebra and relays let engineers discover bugs in their diagrams without having to first build the circuits, and it allowed many complex systems to be refactored, replacing them with relay systems that were functionally equivalent but had fewer components.”

SEE ALSO Binary Arithmetic (1703), Manchester SSEM (1948)

“A circuit diagram analyzed using George Boole’s “laws of thought”—what today is called Boolean algebra. Boole’s laws were used to analyze complicated telephone switching systems.”

Fair Use Source: B07C2NQSPV

Categories
History

Thomas Arithmometer – 1851 A.D.

Return to Timeline of the History of Computers

1851

Thomas Arithmometer

Gottfried Wilhelm Leibniz (1646–1716), Charles Xavier Thomas de Colmar (1785–1870)

“German philosopher and mathematician Gottfried Leibniz became interested in mechanical calculation after seeing a pedometer while visiting Paris in 1672. He invented a new type of gear that could advance a 10-digit dial exactly 0 to 9 places, depending on the position of a lever, and used it in a machine with multiple dials and levers called the stepped reckoner. Designed to perform multiplication with repeated additions and division by repeated subtractions, the reckoner was hard to use because it didn’t automatically perform carry operations; that is, adding 1 to 999 did not produce 1,000 in a single operation. Worse, the machine had a design flaw—a bug—that prevented it from working properly. Leibniz built only two of them.

More than 135 years later, Charles Xavier Thomas de Colmar left his position as inspector of supply for the French army and started an insurance company. Frustrated by the need to perform manual arithmetic, Thomas designed a machine to help with math. Thomas’s arithmometer used Leibniz’s mechanism, now called a Leibniz wheel, but combined it with other gears, cogs, and sliding levers to create a machine that could reliably add and subtract numbers up to three digits, and multiply and divide as well. Thomas patented the machine, but his business partners at the insurance firm were not interested in commercializing it.

Twenty years later, Thomas once again turned his attention to the arithmometer. He demonstrated a version at the 1844 French national exhibition and entered competitions again in 1849 and 1851. By 1851, he had simplified the machine’s operation and extended its capabilities, giving it six sliders for setting numbers and 10 dials for display results. Aided by three decades’ advance in manufacturing technology, Thomas was able to mass-produce his device. By the time of his death, his company had sold more than a thousand of the machines—the first practical calculator that could be used in an office setting—and Thomas was recognized for his genius in creating it. The size of the arithmometer was approximately 7 inches (18 centimeters) wide by 6 inches (15 centimeters) tall.”

SEE ALSO Curta Calculator (1948)

“This Thomas Arithmometer can multiply two 6-digit decimal numbers to produce a 12-digit number. It can also divide.”

Fair Use Source: B07C2NQSPV