Ключевые слова: background, bitcoin, blockchain, business, cell, chat, coding, coin, conference, cost, crypto, cryptography, currency, data, decentralization, design, digital, double, drawing, email, engine, exposure, future, ico, initial, job, laptop, man, mobile, money, multi, network, notebook, phone, plan, safety, security, shopping, smart, smartphone, sms, social, tablet, technology, think, touch, transaction, web, website, workplace,