Ключевые слова: alphabet, aluminum, background, board, brown, business, button, calculator, colorful, communication, computer, concept, data, design, desktop, device, diagram, digital, electronic, enter, equipment, green, information, internet, keyboard, keypad, laptop, leaf, letter, modern, nature, notepad, number, office, paper, pc, plant, sign, supply, symbol, table, technology, text, white, wireless, wooden, work,