This is the IQ 151, a Czechoslovak 8-bit computer from the mid-1980s, made by ZPA Novy Bor. It was mainly used in schools and other institutions rather than as a typical home computer.
Fun fact: This machine was modular, and you had to add different expansion modules to make it fully useful. The base machine was pretty minimal "out of the box". The mainboard only contained the CPU, supporting ICs, and memory.
This looks like it's incredibly heavy. How hot do you think this ran?
#RetroTech#ComputerHistory#VintageComputing
Atomic Theory
The term “atom” comes from Ancient Greek, meaning “indivisible.” The idea is credited to Democritus and Leucippus, who suggested that matter is made of tiny, indivisible spheres called atoms.
In 1803, John Dalton gave atoms a more scientific definition. He described them as small, hard spheres, identical within each element. His theory was foundational but limited in explaining atomic nature.
A major breakthrough came in the late 1800s when J.J. Thomson discovered electrons. His cathode ray experiments showed atoms were divisible, though his model was soon challenged.
Ernest Rutherford, working at Manchester, devised the gold foil experiment. Instead of confirming Thomson’s model, he revealed the existence of the nucleus, reshaping atomic theory.
Niels Bohr then refined Rutherford’s model using quantum theory. He introduced the idea of electrons existing in energy levels or shells. His model explained hydrogen well but struggled with heavier elements and conflicted with later principles of quantum mechanics.
Further progress came with Erwin Schrödinger, who used mathematics to describe electrons as clouds of density around the nucleus. This quantum model remains central to modern atomic theory.
The story continued as scientists discovered that protons and neutrons themselves are divisible into smaller particles called quarks…
@Don_Vito007 Občas nedávám pravý blinkr při dokončování předjetí (neplatí pro dálnici, tam je to nutnost):
- kam jinam bych asi tak mohl jet, přímo pořád v levém pruhu?
- vpravo bývá odbočka, a pravým blinkrem uvedu předjetého řidiče ve zmatek.
“Proč lidé nedávají blinkr? Zapomínají? Těžko. Spíše to bude kombinací mnoha faktorů. Jedním například bude, že jsou to prostě arogantní hovada pohrdající naprostými základy lidské slušnosti.”
garaz.cz/clanek/servis-…
Elite (1984) was a masterpiece.
Frontier: Elite II (1993) was and still is beyond anything I can understand, and still struggle to make sense of.
It was shipped on one main floppy disk for most versions, with a second disk that was purely optional and not required for gameplay.
Now, here comes the kicker:
The game simulated approximately 200 billion stars (try to imagine that number...), and was modeled after our real galaxy's estimated star count, with stars distributed in a realistic density map - meaning denser toward the galactic core.
Nearly every star had its own star system with planets and moons.
Systems could have up to 20+ planets/moons.
The game had millions of visitable planets and moons, and you could visit any planet or moon in any system, with realistic 1:1 scale orbits, gravity, and physics.
All on ONE (!) disk...
Vše, co bych k tomuto napsal by bylo žalovatelné. Toho se nebojím. Už ale ani nejde o toho zmetka.
Každý, kdo ho volil je pro mne stejným zmetkem jako on. Koncentruje se v něm to nejhorší, co po minulém režimu zbylo, a to nejhorší, co přinesl ten nový.
echo24.cz/a/HcPAu/domaci…
Pokud vláda zkusí omezovat zahraniční aktivity Parlamentu - premiér uvedl, že cesta není potřeba - dopouští se trestného činu podle § 329 odst. 2 písm. b) s trestem tři až deset let vězení pro politické přesvědčení. Trestná je i příprava. …