The document contains 4 URLs related to computer networks. The first URL is about a LAN (local area network) and searches for the term "red de lan" on Google. The second URL searches Google for the term "RED DE MAN". The third URL is an image related to video conferencing. The fourth URL searches Google for the term "UNA PÉRSONA QUE UTILICE EL INTERNET".

2. RED DE LAN
LAN

3. RED DE MAN

4. RED DE WAN

5. https://www.google.com.ec/search?q=red+de+lan&source=lnms&tbm=isch&sa=X&ei=MN
1NUo6eB5S68wS0x4GACQ&sqi=2&ved=0CAcQ_AUoAQ&biw=1366&bih=629&dpr=1
https://www.google.com.ec/?gws_rd=cr&ei=3O5NUviKEZC88wS-
g4GQCg#q=RED+DE+MAN
http://1.bp.blogspot.com/-
YD5cbWagJrk/Tf0LdYD_uII/AAAAAAAAABM/CE_cCSafkgs/s200/video+conferencia.jpg
https://www.google.com.ec/?gws_rd=cr&ei=3O5NUviKEZC88wS-
g4GQCg#q=UNA+P%C3%88RSONA+QUE+UTILICE+EL+INTERNET