Explanation:

• A digital library is a library in which collections are stored in digital formats (as opposed to print, microform, or other media) and accessible by computers. The digital content may be stored locally, or accessed remotely via computer networks. Thus, it can be available extra then internet also. Thus, statement 3 is wrong while 1 and 2 are correct.
• A smart card, chip card, or integrated circuit card (ICC), is any pocket-sized card with embedded integrated circuits. American engineers began developing digital technology in the mid-twentieth century. Digital technology enables immense amounts of information to be compressed on small storage devices that can be easily preserved and transported.
• Digitization also quickens data transmission speeds. Telecommunications has relied on digital methods to transmit messages. In the early 1980s, enhanced fibre optics enabled the development of digital communication networks. Communication satellites known as direct broadcast satellite (DBS) transmitted compressed digital signals for viewers to receive several hundred television programming choices.

Hence option 2nd is correct.