Mobile Phones
Portable communication devices using cellular networks.
Core metadata
- ID: mobile_phones
- Era: Modern
- First known date: 1973 (exact)
- Region: United States and global mobile industry
- Review status: source_checked
- Maturity: established
Prerequisites
- Digital Signal Processing (DSP) (digital_signal_processing)
- Integrated Circuits (Microchips) (integrated_circuits)
- Early Plastics (plastics)
- Portable Electrochemical Batteries (portable_electrochemical_batteries)
- Radio (radio)
- Telecommunications (telecommunications)
Dependents
- Edge Computing (edge_computing)
- Mobile Operating Systems (Smartphone OS) (mobile_operating_systems_smartphone_os)
- Real-Time Universal Translation Devices (real_time_universal_translation_devices)
- Smartphones (smartphones)
Fields
Field lanes
- Telecommunications & Networking: Services & Applications
Node sources
- Mobile Computing (Computer History Museum, 2026, museum) • Supports: node, maturity
Prerequisite edge evidence
Edge/source evidence summary:
- Prerequisite edges: 6
- Average edge confidence: 73%
- Prerequisite sources: 7
- expert_inference: 6
| Prerequisite | Type | Confidence | Evidence level | Note | Sources |
|---|---|---|---|---|---|
| Telecommunications (telecommunications) | enabling | 68% | expert_inference | Telecommunications provides a capability that enables this technology without being the only possible path. |
|
| Integrated Circuits (Microchips) (integrated_circuits) | required | 82% | expert_inference | Integrated Circuits (Microchips) is modeled as a necessary component or method for this technology in the current graph. |
|
| Radio (radio) | enabling | 68% | expert_inference | Radio provides a capability that enables this technology without being the only possible path. |
|
| Early Plastics (plastics) | historical_predecessor | 75% | expert_inference | Early Plastics (Bakelite) is an earlier historical predecessor or foundation, not a one-to-one engineering dependency. |
|
| Digital Signal Processing (DSP) (digital_signal_processing) | enabling | 68% | expert_inference | Digital Signal Processing (DSP) provides a capability that enables this technology without being the only possible path. |
|
| Portable Electrochemical Batteries (portable_electrochemical_batteries) | required | 78% | expert_inference | Handheld mobile phones require self-contained electrochemical power; lithium-ion cells are a later scaling improvement, not a prerequisite for the 1973 mobile-phone lineage. |
|
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