Here are the sentences using the words *permit*, *allow*, *let*, and *enable*:
- Voice control lets the user operate a computer without using hands.
- The CPU enables your computer to perform delicate operations.
- Ports or slots allow data to flow into computer memory.
- A printer lets the customer get paper documents.
- A memory card enables various devices to store data permanently.
- CDs and flash-drives allow the candidate to execute program instructions.
- An ATM lets you withdraw money from the bank account.
- Input devices allow friends to communicate with the computer.
- Social networks let surgeons stay in touch despite distances.
- Robotic devices enable disabled people to hold hundreds of photos.
- Videoconferencing lets the company employees attend a job interview online.