Ключевые слова: ballpoint, blank, business, communication, computer, computer keyboard, confinement, copy space, copyspace, desktop, display, document, electronic, empty, green background, grey, handwriting, ink, isolated, laptop, learning, metallic, mobile, multimedia, no people, note, notepaper, office, online, pad, page, paper, paperwork, pc, pen, portable, pro, shadow, sheet, silver, single, space, student, system, technology, textured, tool, white, work,