Answer:
local Area Network, Wide Local Area Network and Personal Area Network
Could it be archive posts? I'm not sure, but I believe it's archive posts.
Concatenation, which mean we combine two or more strings into one.
Hello, I assume you mean

To add 110011+ 1101 we can setup the problem like the following:
110011
+ 1101
-------------
1000000
When we add 1 + 1 this equals 10 so we just carry the 1 and we keep doing that from right to left. Also 1 + 0 = 1