Linfo displays system statistics such as disk space usage, network usage, hardware information, mounted file systems, hard drives, RAM, hostname, uptime, etc. The Linux version works by parsing the /proc and /sys filesystems and also by connecting to daemons such as hddtemp for determining physical health.
NouvaLinux backup and rescue is a live CD with some special tools for making backups and system recovery. The main tool is an application made by RyXéo (a free software company): a partclone GUI. Backup is Clonezilla compatible: you can make backups with NouvaLinux backup and restore them with Clonezilla.