Ключевые слова: background, bit, bitcoin, black, blockchain, board, btc, business, button, coin, color, communication, computer, concept, crypto, cryptocurrency, cryptography, cyber, design, digital, icon, internet, key, keyboard, keypad, laptop, letters, macro, media, message, metaphor, modern, money, network, notebook, office, online, pc, sign, site, speech, symbol, technology, text, virtual, web, website, word, work, www,