# Robotics
### 1. What Is a Robot?

- A **robot** is a programmable machine that can perform tasks automatically, usually based on input from sensors. It combines **mechanical parts**, **electronics**, and **software**.
- The word **"robot"** itself comes from Czech — **Karel Čapek** used it in his 1920 play **R.U.R.** (from "robota" = forced labour). Definitely mention this; the committee loves it.

### 2. Main Parts of a Robot

- **Frame / body / chassis** — the physical structure.
- **Actuators** — what makes the robot move: **electric motors**, **servo motors**, **hydraulic** or **pneumatic** cylinders.
- **Sensors** — the robot's "senses": cameras (vision), microphones (sound), touch/pressure sensors, ultrasonic and infrared distance sensors, LIDAR, gyroscopes, accelerometers, temperature sensors.
- **Controller** — the "brain": a microcontroller or computer running the control program.
- **Power source** — usually batteries or mains electricity.
- **End effector** — the tool at the end of the arm: a gripper, welding torch, paint sprayer, drill, suction cup, etc.

### 3. Types of Robots

- **Industrial robots:** robotic arms in factories (car assembly, welding, painting, packaging). Brands: **KUKA, ABB, Fanuc**. Czech industry uses these heavily — Škoda Auto Mladá Boleslav has hundreds of them.
- **Service robots:** vacuum cleaners (**Roomba**), lawn mowers, hospital delivery robots.
- **Humanoid robots:** look and move like humans — **Boston Dynamics Atlas**, **Tesla Optimus**, **Honda ASIMO**, **Sophia**.
- **Mobile robots / AGVs** (Automated Guided Vehicles): move around warehouses (Amazon's Kiva robots).
- **Drones / UAVs:** flying robots — used for filming, delivery, agriculture, military.
- **Medical robots:** **Da Vinci** surgical system for precise operations; exoskeletons for rehabilitation.
- **Exploration robots:** Mars rovers (**Curiosity, Perseverance**), deep-sea submersibles.
- **Educational / hobby robots:** LEGO Mindstorms, Arduino-based projects.

### 4. Where Robots Are Used (Applications)

- **Manufacturing:** assembly, welding, painting — fast, precise, no breaks.
- **Logistics:** warehouse picking and packing, sorting parcels.
- **Healthcare:** surgery, rehabilitation, elderly care, hospital logistics.
- **Agriculture:** automated milking, fruit picking, crop monitoring with drones.
- **Military and security:** bomb disposal, reconnaissance drones.
- **Space and underwater exploration:** places too dangerous or distant for humans.
- **Household:** vacuum cleaners, mops, lawn mowers.
- **Entertainment:** animatronics in theme parks, robot dogs as toys.

### 5. Robotics and AI

This is where it gets interesting and current.

- Traditional robots only do what they're explicitly programmed for.
- Modern robots increasingly use **artificial intelligence** and **machine learning** to recognise objects, navigate unfamiliar environments and adapt to changes.
- **Computer vision** lets robots "see" and identify objects.
- **Natural language processing** lets people talk to them (think of Sophia, or AI-powered customer service robots).
- **Reinforcement learning** is used to teach robots complex skills like walking on rough terrain (Boston Dynamics).

### 6. Advantages and Disadvantages

**Advantages:**
- Work 24/7 without rest, food or salary.
- Very precise and consistent — fewer defects.
- Can work in dangerous environments (radiation, deep sea, space, war zones).
- Higher productivity, lower long-term cost.

**Disadvantages:**
- **Job displacement** — robots replace human workers, especially in factories.
- **High initial cost** of installation and maintenance.
- Lack of flexibility — a robot trained for one task may struggle with another.
- **Ethical and safety issues** — autonomous weapons, self-driving car accidents, AI bias.
- Dependence on electricity and software — vulnerable to bugs and cyberattacks.

### 7. The Future of Robotics

- **Humanoid robots** in homes and workplaces (Tesla Optimus aims at this).
- **Self-driving cars** — Tesla, Waymo, Mercedes.
- **Smart factories** ("Industry 4.0") with fully automated production lines.
- **Care robots** for an ageing population in Europe and Japan.
- **Brain-computer interfaces** (Neuralink) — controlling machines with thoughts.

### 8. Ethical Side (Asimov's Three Laws)

Nice to mention because it sounds well-read.

The science-fiction author **Isaac Asimov** formulated three laws of robotics:
1. A robot may not injure a human being.
2. A robot must obey orders given by humans, except where they conflict with the First Law.
3. A robot must protect its own existence, as long as this does not conflict with the First or Second Law.

Real-world robotics doesn't actually implement these, but they're often used in debates about AI ethics and autonomous weapons.

**How to use this at the exam:**

Start with the Czech origin of the word "robot" (Karel Čapek, R.U.R., 1920) — that's a strong, original opening. Then describe the parts of a robot (actuators, sensors, controller, end effector). Move on to types — focus on industrial robots (because you know Škoda uses them) and humanoid robots (because they're in the news). Finish with AI integration and the ethical questions (Asimov, job displacement). That structure easily covers several minutes.