# Cambridge IGCSE™ Computer Science (0478 / 0984): Section 2: Data Transmission

> Packet switching and packet structure, data transmission methods (serial, parallel, simplex, half-duplex, full-duplex), Universal Serial Bus (USB), error detection methods (parity checks, checksums, echo checks, check digits, ARQ), and symmetric vs asymmetric encryption.

- **Track:** [Cambridge IGCSE™ Computer Science (0478 / 0984)](https://csmasters.dev/tracks/igcse-0478.md) (CAMBRIDGE IGCSE 0478)
- **Module:** Section 2: Data Transmission
- **Total Lessons:** 10
- **URL:** https://csmasters.dev/tracks/igcse-0478/course_modules/2-data-transmission

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## Module Lessons

### Lesson 1: [2.0 Module Overview: Data Transmission](https://csmasters.dev/learn/igcse-0478/data-transmission-overview.md)
- **Estimated Duration:** 5 mins
- **XP Reward:** 5 XP
- **Access Level:** Open Theory (All-Access Practice)
- **HTML Link:** https://csmasters.dev/learn/igcse-0478/data-transmission-overview

### Lesson 2: [Packet Switching & Packet Structure](https://csmasters.dev/learn/igcse-0478/packet-switching-and-structure.md)
- **Estimated Duration:** 15 mins
- **XP Reward:** 90 XP
- **Access Level:** Open Theory (All-Access Practice)
- **HTML Link:** https://csmasters.dev/learn/igcse-0478/packet-switching-and-structure

### Lesson 3: [Transmission Methods and Directions](https://csmasters.dev/learn/igcse-0478/transmission-methods-and-usb.md)
- **Estimated Duration:** 15 mins
- **XP Reward:** 90 XP
- **Access Level:** Open Theory (All-Access Practice)
- **HTML Link:** https://csmasters.dev/learn/igcse-0478/transmission-methods-and-usb

### Lesson 4: [USB Interfaces](https://csmasters.dev/learn/igcse-0478/usb-interfaces.md)
- **Estimated Duration:** 10 mins
- **XP Reward:** 30 XP
- **Access Level:** Open Theory (All-Access Practice)
- **HTML Link:** https://csmasters.dev/learn/igcse-0478/usb-interfaces

### Lesson 5: [Error Detection: Parity Checks & Parity Blocks](https://csmasters.dev/learn/igcse-0478/error-detection-parity-checks.md)
- **Estimated Duration:** 15 mins
- **XP Reward:** 90 XP
- **Access Level:** Open Theory (All-Access Practice)
- **HTML Link:** https://csmasters.dev/learn/igcse-0478/error-detection-parity-checks

### Lesson 6: [Parity Blocks](https://csmasters.dev/learn/igcse-0478/parity-blocks.md)
- **Estimated Duration:** 15 mins
- **XP Reward:** 60 XP
- **Access Level:** Open Theory (All-Access Practice)
- **HTML Link:** https://csmasters.dev/learn/igcse-0478/parity-blocks

### Lesson 7: [Checksums, Echo Checks & Check Digits](https://csmasters.dev/learn/igcse-0478/checksum-echo-check-digits.md)
- **Estimated Duration:** 15 mins
- **XP Reward:** 85 XP
- **Access Level:** Open Theory (All-Access Practice)
- **HTML Link:** https://csmasters.dev/learn/igcse-0478/checksum-echo-check-digits

### Lesson 8: [Automatic Repeat reQuest (ARQ)](https://csmasters.dev/learn/igcse-0478/automatic-repeat-requests-arq.md)
- **Estimated Duration:** 15 mins
- **XP Reward:** 90 XP
- **Access Level:** Open Theory (All-Access Practice)
- **HTML Link:** https://csmasters.dev/learn/igcse-0478/automatic-repeat-requests-arq

### Lesson 9: [Symmetric & Asymmetric Encryption](https://csmasters.dev/learn/igcse-0478/symmetric-and-asymmetric-encryption.md)
- **Estimated Duration:** 15 mins
- **XP Reward:** 90 XP
- **Access Level:** Open Theory (All-Access Practice)
- **HTML Link:** https://csmasters.dev/learn/igcse-0478/symmetric-and-asymmetric-encryption

### Lesson 10: [Mixed Practice: Data Transmission](https://csmasters.dev/learn/igcse-0478/transmission-review.md)
- **Estimated Duration:** 20 mins
- **XP Reward:** 30 XP
- **Access Level:** Open Theory (All-Access Practice)
- **HTML Link:** https://csmasters.dev/learn/igcse-0478/transmission-review