classes: lecturer. The Linux operating system practice section requires a powerful computer configuration to run 4 virtual machines at the same time, due to the requirements of the practice subject. curriculum. The Linux operating system practice section requires a powerful computer configuration to run 4 virtual machines at the same time, due to the requirements of the practice subject. facility. The Linux operating system practice section requires a powerful computer configuration to run 4 virtual machines at the same time, due to the requirements of the practice subject. general. The Linux operating system practice section requires a powerful computer configuration to run 4 virtual machines at the same time, due to the requirements of the practice subject.