Учебное пособие по дисциплине: Профессиональный английский язык для специальности: «Программирование в компьютерных системах»



Скачать 446.29 Kb.
страница7/10
Дата14.03.2019
Размер446.29 Kb.
ТипУчебное пособие
1   2   3   4   5   6   7   8   9   10
What is an Optical Scanner?

Optical scanner is a device that can read text or illustrations printed on paper and translate the information into a form the computer can use. A scanner works by digitizing an image.

Some scanners are small hand-held devices that you move across the paper. These hand held scanners are often called half-page scanners because they can only scan 2 to 5 inches at a time. Hand-held scanners are good for scanning small pictures and photos, but they are difficult to use if you need to scan a large page.

Larger scanners include machines into which you can feed sheets of paper. These are called sheet-fed scanners. Sheet-fed scanners are excellent for loose sheets of paper, but they are unable to handle bound documents.

Large scanners are called flatbed scanners. They consist of a board on which you lay books, magazines, and other documents that you want to scan.


Поделитесь с Вашими друзьями:
1   2   3   4   5   6   7   8   9   10


База данных защищена авторским правом ©zodorov.ru 2017
обратиться к администрации

    Главная страница