Android File Sharing Methods
| Method | Description | Compatible Devices | File Types |
| Nearby Share (Now “Quick Share”) | Wireless sharing using Bluetooth & Wi-Fi (similar to AirDrop) | Android 6.0+ (Samsung, Pixel, etc.) | Photos, videos, documents, links, etc. |
| Bluetooth | Transfers files via Bluetooth (slower) | All Android devices | Photos, videos, documents, audio, etc. |
| Wi-Fi Direct | Wifi Direct is used specifically for device to device connections, bypassing network.
Wifi generally is used to connect you to a network and/or the internet. |
Most Android devices | Large files like videos, apps, and documents |
| Google Drive | Cloud-based storage & file sharing | Android, iOS, Web | Documents, images, videos, etc. |
| Google Messages (RCS Chat) | Share files via RCS messaging (like iMessage) | Android devices with RCS support | Photos, videos, documents |
| Email Attachments | Send files via email apps (Gmail, Outlook, etc.) | All devices | Documents, images, videos |
| Third-Party Apps (e.g., SHAREit, Xender, Zapya) | Cross-platform file transfer apps | Android, iOS, PC | Large files, apps, and media |
| USB File Transfer | Transfer files via USB cable | Android to PC/Mac | All file types |
| NFC (Near Field Communication) | Tap-to-send small files (older method) | Older Android phones | Small files like contacts, links, etc. |
Apple File Sharing Methods
|
Method |
Description | Compatible Devices | File Types |
| AirDrop | Wireless file-sharing using Bluetooth & Wi-Fi | iPhone, iPad, Mac | Photos, videos, documents, contacts, links, etc. |
| iCloud Drive | Cloud-based storage & file sharing | iPhone, iPad, Mac, Web | Documents, images, videos, etc. |
| iMessage | Send files via Apple’s messaging app | iPhone, iPad, Mac | Photos, videos, documents, voice memos |
| Mail Drop | Allows sending large files (up to 5GB) via iCloud | iPhone, iPad, Mac | Large email attachments |
| Shared Albums | Share photos & videos via iCloud | iPhone, iPad, Mac | Photos, videos |
| Handoff & Universal Clipboard | Copy-paste between Apple devices | iPhone, iPad, Mac | Text, images, links |
| Nearby Sharing (Mac) | Similar to AirDrop but for Macs | Mac to Mac | Files, folders |
Mobile Settings
| Setting | Purpose |
| Wi-Fi | Connect to and manage wireless networks. |
| Bluetooth | Enable/disable Bluetooth and pair with devices. |
| Mobile Data | Turn mobile data on/off and configure network settings. |
| Hotspot & Tethering | Share mobile data with other devices. |
| Airplane Mode | Disable all wireless connections (Wi-Fi, Bluetooth, Mobile Data). |
| VPN | Connect to Virtual Private Networks for secure browsing. |
| Storage | internal storage, External storage (Memory card, Cloud storage) |
| Do Not Disturb | Mute notifications and calls for distraction-free usage. |
| Location Services | Enable/disable GPS and manage location access for apps. GPS stands for Global Positioning System. |
| About Phone | View phone details like model number, software version, and IMEI(International Mobile Equipment Identity) is a unique 15-digit number |
Mobile & important Components
| Information | Description / Purpose |
| Brand & Model | Identifies the manufacturer and specific model of the phone. |
| Operating System (OS) | Determines the software platform (e.g., Android, iOS). |
| Processor (CPU & GPU) | Impacts speed, performance, and graphics capability. |
| RAM (Memory) | Affects multitasking and overall speed. |
| Internal Storage | Determines how much data (apps, photos, files) can be stored. |
| Expandable Storage | Indicates if a microSD card can be used for additional space. |
| Resolution | Affects clarity and sharpness (e.g., Full HD, 4K). |
| Battery Capacity | Measured in mAh (unit of electric charge that indicates the battery capacity of a device), affects battery life duration. |
| Camera Specifications | megapixels (MP) (refer to the resolution of a camera sensor. 1 Megapixel = 1 million pixels.) |
| Network Support | Shows compatibility (4G, 5G, VoLTE). |
| SIM Type & Slots | Indicates single or dual SIM support (Nano, eSIM). |
| Connectivity Features | Includes Wi-Fi, Bluetooth, NFC, GPS, USB Type-C. |
| Fingerprint/Face Unlock | Adds biometric security for unlocking the phone. |
| Charging Technology | Fast Charging, Wireless Charging, or Reverse Charging support. |
| Build Material | Determines durability (Glass, Plastic, Aluminum, Gorilla Glass). |
| Weight & Dimensions | Impacts portability and ease of use. |
| Speaker & Audio | Stereo speakers, Dolby Atmos, 3.5mm headphone jack. |
| Software Updates | Indicates how long the phone will receive Android/iOS updates. |
| Water & Dust Resistance | Rated as IP67/IP68 for protection against water and dust. |
| SAR Value | Measures radiation emission levels for safety. |
| Price & Availability | Determines cost and where it can be purchased. |
4G & 5G
| Feature | 4G (Fourth Generation) | 5G (Fifth Generation) | |
| Speed | Up to 100 Mbps | Up to 10 Gbps (theoretically) | 1 Mbps = 1 million bits per second & 1 Gbps = 1 billion bits per second |
| Latency | ~50ms | 1-10ms (Ultra-low) | Latency is the time delay in data transmission, measured in milliseconds (ms). It represents how long it takes for data to travel. (1000 ms = 1 sec) |
| Technology | Uses LTE (Long-Term Evolution) | Uses mmWave (Millimeter Wave) | |
| Device Compatibility | Works on all 4G-compatible devices | Requires 5G-enabled devices |
Famous Mobile Antivirus Apps:
- Avast Mobile Security
- Bitdefender Mobile Security
- Norton Mobile Security
- McAfee Mobile Security
- Kaspersky Mobile Security
- ESET Mobile Security
- AVG AntiVirus
Famous Mobile VPN Apps:
- NordVPN
- ExpressVPN
- CyberGhost VPN
- Surfshark VPN
- ProtonVPN
- Windscribe VPN
- TunnelBear VPN
Type, Purpose or similarity of Apps
Famous Mobile Apps (Category-wise)
📱 Social Media & Communication
WhatsApp, Facebook, Instagram, Snapchat, Telegram, Twitter (X), Messenger
🎵 Entertainment & Streaming
YouTube, Netflix, Spotify, Amazon Prime Video, Disney+, TikTok
🛒 Shopping & E-Commerce
Amazon, eBay, AliExpress, Walmart
📍 Navigation & Travel
Google Maps, Uber, Waze, Booking.com
💰 Finance & Payments
Google Pay, PayPal, Cash App, Venmo
📷 Photo & Video Editing
Adobe Lightroom, PicsArt, Canva, CapCut
📂 Productivity & Cloud Storage
Google Drive, Microsoft Office, Evernote, Notion