Attended Robot: Any human interaction with the robot is called Attended Robot.
Unattended: Without any human intervention, the robot runs independently is called Unattended.
The attended robot, the schedule doesn’t work 24*7 we have to manually turn on once in a day?
Need more details to answer this question. If you are scheduling a robot, then it comes under unattended robot because the robot is getting triggered from the Orchestrator and completes the job itself.
While creating robots in orchestrator (above version 2018.3.x) it asks for which type of robot to create, based on your process nature you have to create the bot .