Mobile Device Components

Question 1

Battery

Answer 1

The power source for mobile devices. Over time, batteries degrade and may need replacement. Technicians should use OEM or compatible batteries and follow safe handling/disposal procedures.

Question 2

Keyboard/keys

Answer 2

Physical or touch-based input systems. On laptops and some tablets, physical keyboards may fail due to wear or damage and require replacement.

Question 3

Random-access memory (RAM)

Answer 3

Temporary memory used to store active processes and data. Some mobile devices, especially laptops, allow RAM upgrades or replacements to improve performance.

Question 4

Hard disk drive (HDD)/solid-state drive (SSD)

Answer 4

Storage devices. SSDs are faster and more durable than HDDs. In mobile devices like laptops, replacing an HDD with an SSD can significantly improve speed and reliability.

Question 5

Wireless cards

Answer 5

Network interface components for Wi-Fi/Bluetooth. These can be replaced or upgraded in laptops and some tablets if wireless connectivity is lost or weak.

Question 6

Biometrics

Answer 6

Authentication using fingerprints, facial recognition, or iris scans. If sensors fail, they may be replaced or recalibrated.

Question 7

Near-field scanner feature

Answer 7

Used for secure authentication, payments, or access control. Includes NFC scanners or secure elements embedded in hardware.

Question 8

Wi-Fi antenna connector/placement

Answer 8

Internal antennas connect via small connectors to the wireless card. Poor placement or damage can cause weak signal reception and may require repair or repositioning.

Question 9

Camera/webcam

Answer 9

Integrated imaging devices. If cameras malfunction, replacements can involve swapping out modules or repairing connections.

Question 10

Microphone

Answer 10

Used for audio input. Internal microphones can fail due to damage or moisture and might require replacement or cleaning