Full-size Laptop is a laptop large
enough to accommodate a "full-size" keyboard. The measurement of at
least 11 inches across has been suggested as the threshold for this class. The
first laptops were the size of a standard U.S. "A size" notebook
sheet of paper 8.5 × 11 inches, but later "A4-size" laptops were
introduced, which were the width of a standard ISO 216 A4 sheet of paper 297
mm, or about 11.7 inches, and added a vertical column of keys to the right and
wider screens. It can also be laid sideways when not in use.
