LiveCD and Livedvd are able to run the system directly on the disc, but cannot be installed, the difference is the capacity size, DVD contains more software.
Netinstall is an image file for network installation and system rescue.
minimal This image file is used to install a very basic CentOS system that contains some basic minimum installation packages.
The DVD image file contains a full release version that can be used to install the complete CentOS system.
CentOS 7.1 64bit ISO latest version (as of 2015.05.06) (Ali site): http://mirrors.aliyun.com/centos/7.1.1503/isos/x86_64/
If you want to download the full operating system, go to the page and download the following two image files:
Centos-7-x86_64-dvd-1503-01.iso
Reference: http://blog.csdn.net/yasi_xi/article/details/8268264
Different versions of CentOS LiveCD Livedvd DVD and the latest version 7.1 downloads