Ключевые слова: blackboard, business, chalk, chalkboard, client, cloud, commerce, computer, computing, concept, container, data, database, device, digital, download, economics, electron, electronic, file, finance, fingerboard, icon, illustration, information, internet, keyboard, label, market, mobile, mobility, net, network, notebook, on line, pay, pc, portable, server, sign, sky, symbol, system, technology, transfer, upload, virtual, web, workstation, www,