The first programmable computer built by Konrad Zuse used binary notation for numbers.

The first electronic programmable digital computer, the ENIAC, using thousands of octal-base radio vacuum tubes, could perform simple calculations involving 20 numbers of ten decimal digits which were held in the vacuum tube accumulators.

It has the distinction of being the first programmable ROM cartridge – based video game console, and the first console to use a microprocessor.

The HP-65, the first programmable pocket calculator

The first desktop programmable calculators were produced in the mid-1960s by Mathatronics and Casio ( AL-1000 ).

In 1979, HP released the first alphanumeric, programmable, expandable calculator, the HP-41C.

The first Soviet programmable desktop calculator ISKRA 123, powered by the power grid, was released at the beginning of the 1970s.

The first Soviet pocket battery-powered programmable calculator, Elektronika " B3-21 ", was developed by the end of 1977 and released at the beginning of 1978.

The need to break German codes in World War II led to advances in cryptography and theoretical computer science, with the first programmable digital electronic computer being developed at England's Bletchley Park.

In 1941 Konrad Zuse presented the Z3, the world's first fully functional and programmable computer using electromechanical parts.

In 1943 Tommy Flowers designed and built the Colossus, the world's first fully functional, electronic, digital and programmable computer.

The first programmable computer, the Z3 ( computer ) | Z3 included floating point arithmetic ( replica on display at Deutsches Museum in Munich ).

In 1938, Konrad Zuse of Berlin completed the Z1, the first mechanical binary programmable computer, this was however unreliable in operation.

Konrad Zuse, architect of the first programmable computer, which used 22-bit binary floating point.

The underlying principle was noted by the inventor of the first programmable computing device design:

Colossus was the world's first electronic programmable computing device.

Though the ABC machine was not programmable, it was the first to use electronic tubes in an adder.

In 1972, Intel launched the 8008, the first 8-bit microprocessor .< ref > using enhancement load PMOS logic ( demanding 14V, achieving TTL-compatibility by having V < sub > CC </ sub > at + 5V and V < sub > DD </ sub > at-9V )</ ref > It implemented an instruction set designed by Datapoint corporation with programmable CRT terminals in mind, that also proved to be fairly general purpose.

* Konrad Zuse, inventor of first working programmable computer

* 1941 – Konrad Zuse presents the Z3, the world's first working programmable, fully automatic computer, in Berlin.

Other technological and engineering feats achieved during, or as a result of, the war include the world's first programmable computers ( Z3, Colossus, and ENIAC ), guided missiles and modern rockets, the Manhattan Project's development of nuclear weapons, operations research and the development of artificial harbours and oil pipelines under the English Channel.

* The Z3 as world's first working programmable, fully automatic computing machine was built.

* May 12 – Konrad Zuse presents the Z3, the world's first working programmable, fully automatic computer, in Berlin.

Stevens was grunting over the last empty pocket when Russ abruptly rose and lunged toward Carmer's hat, which had tumbled half-a-dozen feet away when he first fell.

* 1514 Virgil ( the first of the italic type pocket octavo editions )

The first American-made pocket-sized calculator, the Bowmar 901B ( popularly referred to as The Bowmar Brain ), measuring 5. 2 × 3. 0 × 1. 5 in ( 131 × 77 × 37 mm ), came out in the Autumn of 1971, with four functions and an eight-digit red LED display, for $ 240, while in August 1972 the four-function Sinclair Executive became the first slimline pocket calculator measuring 5. 4 × 2. 2 × 0. 35 in ( 138 × 56 × 9 mm ) and weighing 2. 5 oz ( 70g ).

Launched in early 1972 it was unlike the other basic four-function pocket calculators then available in that it was the first pocket calculator with scientific functions that could replace a slide rule.

Their first calculator, the Loan Arranger ( 1978 ) was a pocket calculator marketed to the Real Estate industry with preprogrammed functions to simplify the process of calculating payments and future values.

Some variants enclose almost the entire arrow, while minimalist " pocket quivers " consist of little more than a small stiff pouch that only covers the first few inches.

The Thames-free 2009 version was the first time that the river has not appeared on the Tube map since the Stringemore pocket map of 1926.

Depending on how broadly one defines both wearable and computer, the first wearable computer could be as early as the first abacus on a string, or, later, a 16th century pocket watch.

After spending several years as assistant editor of Practical Wireless and Instrument Practice, Sinclair founded Sinclair Radionics in 1961, where he produced the first slim-line electronic pocket calculator in 1972 ( the Sinclair Executive ).

The first self-winding mechanism was invented for pocket watches in 1770 by Abraham-Louis Perrelet, but the first " self-winding ", or " automatic ", wristwatch was the invention of a British watch repairer named John Harwood in 1923.

The first digital mechanical pocket watches appeared in late 19th century.

Because of its number-one position in what became a very long list of pocket editions, Lost Horizon is often mistakenly called the first American paperback book when in fact paperbacks had been around since the mid-1800s.

What made Pocket Books # 1 of revolutionary importance was that it had the distinction of being the very first " mass-market " paperback ; " mass-market " paperbacks allowed people of modest means not just to own books they otherwise might not have been able to afford, it also made it possible for them to slip the paperback into their pocket for casual reading on the go, hence the name " Pocket Book.

According to Kevin Brownlow and David Gill's documentary series Unknown Chaplin, the first scenes to be written and filmed take place in what became the movie's second half, in which the penniless Tramp finds a coin and goes for a meal in a restaurant, not realising that the coin has fallen out of his pocket.

On 28 May, Hitler called a meeting of his service chiefs where he ordered an acceleration of U-boat construction and brought forward the construction of his first two battleships, Bismarck and Tirpitz, to spring 1940, and demanded that the increase in the firepower of the pocket battleships Scharnhorst and Gneisenau be accelerated.

The leading publisher and printer of the Venetian High Renaissance, Aldus set up a definite scheme of book design, produced the first italic type, introduced small and handy pocket editions ( octavos ) of the classics, and applied several innovations in binding technique and design for use on a broad scheme.

Beef tripe is usually made from only the first three chambers of a cow's stomach: the rumen ( blanket / flat / smooth tripe ), the reticulum ( honeycomb and pocket tripe ), and the omasum ( book / bible / leaf tripe ).

During one commercial spot, Anacin offered a free pocket mirror to the first 200 viewers who wrote in requesting one.