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Glossary

Mobile, Hardware & Tech Trends

379 terms in this category.

120Hz Display
High refresh rate display for smooth scrolling
3D Printing
Additive manufacturing layer by layer. FDM (filament), SLA (resin), and SLS (powder). Rapid prototyping, custom parts, a
3D Touch
Pressure-sensitive display technology replaced by Haptic Touch
4K Resolution
3840x2160 pixel display resolution four times 1080p
5G
Fifth generation of mobile networks. Speeds up to 10Gbps, latency <1ms, and 1M devices/km². Enables massive IoT, AR/VR,
6G
Sixth generation of mobile networks, expected around 2030. Theoretical speeds of 1Tbps, holographic communication, and A
8K Resolution
7680x4320 pixel resolution for large display formats
Accelerator
Hardware speeding specific operations like GPU NPU TPU
Accelerometer
Sensor measuring acceleration and orientation. Step counting, screen rotation.
Accessibility Service
OS feature for assistive apps. Screen readers, voice control.
Active Cooling
Fan or liquid cooling system for processors
Ad SDK
Library displaying ads in apps. AdMob, Unity Ads. Revenue source.
Adaptive Charging
Battery charging that learns user patterns and slows charging to 80% until needed. Extends battery lifespan. Implemented
AirDrop
Apple's peer-to-peer file sharing using Bluetooth and Wi-Fi. Instantly share files, photos, and links between Apple devi
Airplane Mode
Disabling all wireless communication. Required during flights.
Always-on Display
Screen showing time, notifications, and widgets while the device sleeps. OLED pixels illuminate selectively for minimal
Android
Google's mobile OS based on Linux. 72% global market share. Open source (AOSP). Google Play Store with 3.5M+ apps.
Android Studio
Official Android IDE. Kotlin/Java, emulator, profiler.
API Level
Android version identifier. Determines available features. Target and minimum.
APK
Android Package Kit. App installation file. Replaced by AAB for Play Store.
App Analytics
Tracking and analyzing mobile app user behavior
App Bundle
Android packaging format replacing APK. Dynamic delivery, smaller downloads.
App Clip
A small part of an iOS app discoverable at the moment it's needed. No full installation required. Launched via NFC, QR c
App Lifecycle
States an app goes through. Active, background, suspended, terminated.
App Permission
User-granted capability. Camera, location, contacts. Runtime request.
App Review
Official store approval process checking guidelines
App Sandbox
OS isolation between apps. Own storage, process. Security boundary.
App Signing
Cryptographically signing app for distribution. Play App Signing, Apple certs.
App Size
Total disk space app occupies. Affects downloads. Asset optimization reduces.
App Store
Apple iOS app marketplace with curated content
App Store Optimization
ASO — improving app visibility and downloads in app stores. Keywords, screenshots, ratings, and descriptions. The SEO of
App Update
New version of installed app. Automatic or manual. Staged rollout.
Apple CarPlay
iPhone interface projected onto car infotainment display
Apple Intelligence
Apple's on-device AI system integrating across iOS, macOS, and iPadOS. Writing tools, image generation, smart notificati
Apple Silicon
Apple's custom ARM-based chips for Mac. M1 through M4 deliver industry-leading performance per watt. Unified memory arch
AR Filter
Augmented reality overlay on camera. Snapchat, Instagram. Face tracking.
ARCore
Google's augmented reality SDK for Android. Motion tracking, environmental understanding, and light estimation. Enables
ARKit
Apple's augmented reality framework for iOS. Face tracking, object detection, LiDAR support, and world mapping. Powers A
ARM Architecture
A RISC processor architecture dominating mobile and increasingly desktop/server. Energy efficient. Apple Silicon, Qualco
Augmented Reality
AR overlays digital elements onto the real world. Apple Vision Pro, Pokémon GO, and Instagram filters. ARKit (iOS) and A
AV1
A royalty-free video codec by Alliance for Open Media (Google, Meta, Netflix). Better compression than H.264/H.265. Hard
Background Process
App execution when not in foreground. Services, sync, notifications.
Backup (Mobile)
Saving device data. iCloud, Google Backup. Restore on new device.
Band Steering
Router directing devices to optimal frequency. 2.4GHz far, 5GHz fast.
Battery Cycle
Full charge-discharge cycle affecting battery lifespan
Battery Health
A metric showing battery capacity relative to when it was new. 80%+ is healthy for phones. Lithium-ion batteries degrade
Battery Optimization
OS managing app background activity. Doze mode. Restricts wake locks.
Battery Saver
Power mode extending battery by limiting features
Benchmark (Hardware)
Standardized performance tests. Geekbench, AnTuTu, 3DMark.
Beta Channel
Pre-release software version. Test new features. iOS TestFlight, Play Beta.
Bezel
The border around a display screen. Modern devices minimize bezels for larger screen-to-body ratios. Edge-to-edge displa
Binning
Sorting chips by quality/speed after manufacturing. Best become top-tier products.
Biometric Authentication
Using physical characteristics for identity verification. Face ID (3D face mapping), Touch ID (fingerprint), and iris sc
BIOS
Basic Input/Output System — legacy firmware initializing hardware before the OS boots. Replaced by UEFI on modern comput
Blockchain
A distributed, immutable ledger. Blocks of transactions cryptographically chained together. Bitcoin (2009) was the first
Bluetooth LE
Bluetooth Low Energy — power-efficient wireless protocol for IoT, wearables, and accessories. Designed for small, period
Bluetooth Mesh
Bluetooth topology connecting thousands of devices in a mesh network. Smart lighting, industrial IoT, and building autom
Boot Loader
First software running on device startup. Loads operating system.
Cache (Mobile)
Temporary data storage for faster access. Clear to free space.
Camera API
Programming interface for camera. CameraX (Android), AVFoundation (iOS).
Camera Sensor
CMOS image sensor capturing light for digital photos
Carrier Aggregation
Combining multiple cellular frequency bands for higher throughput. 5G uses carrier aggregation extensively. Enables giga
Cellular Network
Mobile wireless network. 4G LTE, 5G. Carrier operated.
Chiplet
A small chip die designed to be combined with others in a single package. AMD Ryzen uses chiplets for CPUs. Improves yie
Clock Speed
Processor cycles per second. GHz. Higher = faster per core.
Cloud Backup
Storing device data in cloud. Automatic, encrypted. Cross-device restore.
Cloud Gaming
Playing games streamed from cloud. GeForce NOW, Xbox Cloud Gaming.
Codec
Compressor-decompressor for media. H.264, H.265, AV1, AAC, Opus.
Companion App
Mobile app paired with hardware device. Smartwatch, fitness tracker.
Computational Photography
Using software and AI to enhance photos beyond hardware limits. Night mode, HDR, Portrait mode, and Magic Eraser. Google
Connectivity
Device's ability to connect to networks. Wi-Fi, cellular, Bluetooth.
Container Format
File format wrapping media streams. MP4, MKV, WebM.
Copilot+ PC
Microsoft's AI-ready PC specification. Requires NPU with 40+ TOPS. Recall, Cocreator, and Live Captions use on-device AI
Core (CPU)
Independent processing unit. Multi-core: 4, 8, 16 cores. Parallel execution.
Core ML
Apple's framework for on-device machine learning. Runs models on Neural Engine, GPU, or CPU. Supports vision, NLP, and s
CPU
Central Processing Unit — the computer's brain. Executes instructions sequentially. Cores, threads, clock speed, and cac
Crash Analytics
Tracking and reporting app crashes. Firebase Crashlytics, Sentry.
Cross-Device
Working across multiple devices. Handoff (Apple), Nearby Share (Google).
Cross-Platform
Development generating apps for multiple platforms from one codebase. React Native and Flutter are leaders. Saves time b
Cryptocurrency
Digital currency based on cryptography and blockchain. Bitcoin (store of value), Ethereum (smart contracts), and stablec
Custom ROM
Modified Android OS. LineageOS. Requires unlocked bootloader.
Custom Silicon
Company-designed processor chips like Apple M-series
Dark Mode (Mobile)
UI theme with dark backgrounds. Saves OLED battery. System-wide.
Dark Silicon
Transistors that must be powered off to stay within thermal limits. As chips shrink, more area becomes dark silicon. Spe
Data Migration
Moving data between devices or platforms. Setup wizard, transfer tools.
DDR5
Fifth-generation Double Data Rate memory. 4800-8400+ MHz, up to 512GB per module. Powers current-gen desktops, laptops,
Debug Build
App version with debugging features. Logs, assertions, slower.
Deep Linking
URLs that open specific content within a mobile app. Universal Links (iOS) and App Links (Android). Bridges web and app
Depth Sensor
Hardware measuring distance to objects. LiDAR (iPhone Pro), ToF sensors, and structured light. Enables AR, portrait mode
Developer Mode
Hidden OS settings for developers. USB debugging, layout bounds.
Device Driver
Software enabling OS to communicate with hardware. GPU, audio, network.
Device Fingerprint
Unique device identification from characteristics. Anti-fraud.
Device Management
Centrally managing devices. MDM for enterprise. Remote wipe, policy.
Digital Crown
Apple Watch physical control dial for navigation
Digital Twin
A virtual replica of a physical object, process, or system. Updated with real-time data from sensors. Used in manufactur
Digital Wellbeing
Software tools managing screen time and digital habits. Screen Time (iOS), Digital Wellbeing (Android). App limits, focu
Display Panel
Screen technology type LCD OLED Mini-LED or microLED
Display Resolution
Pixel count: 1080p, 1440p, 4K. Higher = sharper. PPI for density.
DisplayPort
A digital display interface standard. DP 2.1 supports 16K at 60Hz. Used in monitors and GPUs. USB-C can carry DisplayPor
DLSS
Deep Learning Super Sampling — NVIDIA's AI upscaling technology. Renders at lower resolution and uses AI to upscale. Hig
Dolby Atmos
An immersive audio format with object-based sound placement in 3D space. Sounds positioned precisely around the listener
Drone
Unmanned Aerial Vehicle (UAV). Photography, agriculture, deliveries, and inspection. DJI dominates the consumer market.
Dual Camera
Two rear cameras combining wide and telephoto lenses
Dual SIM
Support for two SIM cards. Personal and work numbers. Physical + eSIM.
Dynamic Island
Apple's interactive notification area replacing the iPhone notch. Adapts shape and size for alerts, media controls, and
E-Ink
Electronic ink display technology mimicking paper. No backlight, extremely low power. Kindle e-readers, reMarkable table
ECC Memory
Error-Correcting Code memory detecting and fixing single-bit errors. Required for servers and workstations. Prevents dat
Ecosystem
Connected products and services from one company
Edge Device
A computing device at the network periphery processing data locally. IoT sensors, smart cameras, and industrial controll
Edge TPU
Google's purpose-built AI chip for edge devices. Runs TensorFlow Lite models efficiently. Powers Coral devices for on-de
Edge-to-Edge
UI extending to screen edges behind system bars. Immersive experience.
Emulator
Software simulating mobile device. Android Emulator, iOS Simulator.
Encryption (Mobile)
Device data encryption. File-based (Android), Data Protection (iOS).
eSIM
Embedded SIM — a programmable SIM built into the device. Switch carriers without physical SIM cards. Multiple profiles f
Exascale Computing
Computing systems performing 10^18 operations per second. Frontier (ORNL) was the first exascale supercomputer. Used for
Eye Tracking
Following user gaze direction for interface control
Face ID
Apple 3D facial recognition using TrueDepth camera
Face Recognition
Identifying persons by facial features. Face ID, smart lock.
Factory Reset
Restoring device to original state. Erases all data. Last resort.
Fast Charging
High-power charging technology. USB PD, Qualcomm Quick Charge.
Feature Phone
Basic mobile phone. Calls, texts. KaiOS adds basic smart features.
File Manager
App for browsing device filesystem. Files (iOS), Files (Android).
Fingerprint Sensor
Biometric scanner reading fingerprints. Under-display, side, rear.
Firmware
Low-level software permanently stored in hardware. Controls basic device behavior: BIOS/UEFI, routers, and IoT. Updating
Fitness Tracker
Wearable device monitoring physical activity and health
Flash Memory
Non-volatile solid-state storage technology NAND based
Flexible Display
Screen technology that can bend fold or roll
Flip Phone
Clamshell foldable phone design like Galaxy Z Flip
Flutter
Google's cross-platform UI toolkit using Dart. Compiles to native ARM code. Single codebase for iOS, Android, web, and d
Flutter (Detail)
Dart-based. Native ARM code. iOS/Android/web.
Foldable Display
Flexible screens that fold without breaking. Samsung Galaxy Z Fold/Flip, Google Pixel Fold. UTG (Ultra Thin Glass) enabl
Frame Drop
Failure to render frame on time. Causes stutter. Monitor with profilers.
Front Camera
Forward-facing camera for selfies and video calls
FSR
FidelityFX Super Resolution — AMD's open-source upscaling technology. Works on any GPU (including NVIDIA). Boosts perfor
Game Engine
Framework for game development. Unity, Unreal Engine, Godot.
Gaming Phone
Smartphone optimized for gaming with cooling and triggers
GDDR6
Graphics DDR6 — high-bandwidth memory for GPUs. Up to 24Gbps per pin. GDDR6X (NVIDIA) reaches 23Gbps. Essential for gami
Gesture Control
Interacting with devices through hand movements without touching. Apple Vision Pro hand tracking, Google Soli radar chip
Glass Back
Phone rear panel made of glass enabling wireless charging
GLONASS
Russian satellite navigation system complementing GPS
GPL License
GNU General Public License — a copyleft license. Derived code must also be GPL. Linux kernel uses GPL v2. Ensures softwa
GPS
Global Positioning System. Satellite navigation. Location services.
GPU
Graphics Processing Unit — originally for graphics, now essential for AI and parallel computing. NVIDIA RTX 4090 (gaming
GPU Rendering
Using graphics processor for screen element drawing
Graphene
Single atom carbon layer for future batteries and processors
Growth Hacking
Creative, low-cost strategies for rapid growth. A/B testing, viral loops, referral programs, and product-led growth are
Gyroscope
Sensor measuring rotational movement. Gaming, VR, stabilization.
H.265
High Efficiency Video Coding (HEVC) — video codec achieving 50% better compression than H.264. Standard for 4K streaming
Haptic Engine
Sophisticated vibration motor providing tactile feedback
Haptic Feedback
Touch-based feedback through vibrations. Taptic Engine in iPhones provides precise haptics. Enhances typing, gaming, and
HDD
Hard Disk Drive — storage with rotating magnetic disks. Cheaper per TB than SSD. Used for backup, NAS, and cold storage.
HDMI
High-Definition Multimedia Interface. HDMI 2.1 supports 4K@120Hz and 8K@60Hz. Standard for TVs, monitors, and consoles.
HDR
High Dynamic Range — wider range of brightness and colors in displays and content. HDR10, Dolby Vision, and HDR10+ are s
Health Kit
Apple framework for health data. Steps, heart rate, sleep.
Health Monitoring
Wearable sensors tracking heart rate blood oxygen sleep
Heat Pipe
A sealed tube using liquid evaporation and condensation to transfer heat. Used in laptop cooling. Vapor chambers are fla
Home Screen
Device main screen. App icons, widgets. Customizable.
HomePod
Apple's smart speaker with Siri integration. Spatial audio, HomeKit hub, and Intercom. Competes with Amazon Echo and Goo
Horizontal Mode
Landscape device orientation for video and gaming
Hybrid App
An application using web technologies (HTML, CSS, JS) packaged to look native. Ionic and Capacitor are popular framework
Image Signal Processor
ISP chip converting raw sensor data to photos
In-App Purchase
Buying content within app. Subscriptions, consumables. IAP.
Industrial Design
Physical product design considering materials and ergonomics
Infrared Sensor
Sensor detecting infrared light for face scanning
Ingress Protection
IP rating measuring dust and water resistance. IP68 = dust-tight and submersible beyond 1m. Standard for modern smartpho
Intelligent Tracking Prevention
Apple's Safari feature blocking cross-site tracking cookies and fingerprinting. Limits advertiser tracking. Part of Appl
iOS
Apple's mobile OS for iPhone. Known for security, privacy, and a curated App Store. Swift and SwiftUI for native develop
IoT
Internet of Things — a network of connected physical devices: sensors, cameras, thermostats, wearables. Communicate via
IP Rating
Ingress Protection rating for dust and water resistance
Jailbreak
Removing iOS restrictions. Install unofficial apps. Security risk.
Jetpack Compose
Android's modern declarative UI toolkit by Google. Kotlin-based, similar philosophy to SwiftUI. Replaced XML layouts. Co
Keyboard App
Custom keyboard replacement. Gboard, SwiftKey. Predictions, themes.
Kotlin
Google's preferred language for Android development. Concise, null-safe, and fully interoperable with Java. Coroutines f
KPI
Key Performance Indicator — a metric measuring the success of an activity. Examples: DAU (Daily Active Users), MRR (Mont
Launcher
Android home screen app. Nova, Lawnchair. Customizable layout.
Li-Po Battery
Lithium Polymer battery — lightweight, flexible form factor used in smartphones, laptops, and wearables. Higher energy d
LiDAR
Light Detection and Ranging — uses laser pulses to measure distances and create 3D maps. iPhone Pro, autonomous vehicles
Linux
A family of open-source OSes based on the Linux kernel. Ubuntu, Fedora, Arch, and Debian are popular distros. Dominates
Location Services
Device GPS and network location. App permissions. Battery impact.
Lock Screen
Security screen before device access. PIN, pattern, biometric.
Low-Code / No-Code
Platforms allowing application creation with little or no code. Bubble, Retool, and Webflow. Democratize development but
LTE
Long Term Evolution 4G cellular standard
M.2
A compact form factor for SSDs and wireless cards. NVMe M.2 drives are the fastest consumer storage. 2280 (22mm wide, 80
macOS
Apple's OS for Mac. Unix-based with a full terminal. Apple Silicon (M1-M4) revolutionized performance. Popular among dev
Magnetic Charging
MagSafe-style magnetic alignment for wireless charging
Material Design
Google's design system. Components, colors, typography, motion.
Matter
A smart home connectivity standard by Apple, Google, Amazon, and Samsung. One protocol for all smart home devices. Works
Memory Management
Operating system allocating RAM to running applications
Mesh Wi-Fi
Multiple access points creating a seamless wireless network. Eliminates dead zones. Eero, Google Nest WiFi, and UniFi. S
Metal (API)
Apple's low-level graphics API. High-performance 3D rendering.
Metaverse
A persistent, immersive virtual world. Meta (Facebook) invested $36B+. Roblox, Fortnite, and VRChat are proto-metaverses
Micro USB
Legacy connector replaced by reversible USB-C
MicroLED
Next-generation display technology using microscopic LEDs. Self-emissive like OLED but brighter, longer-lasting, and no
Microphone Array
Multiple microphones for noise cancellation and directionality
Mid-Range Phone
Balanced price-performance smartphone 300-500 dollars
Millimeter Wave
High-frequency 5G band with fast speeds short range
Mini-LED
LCD backlighting using thousands of tiny LEDs for precise dimming zones. Better contrast than regular LCD, approaching O
MIT License
A permissive open-source license. Allows commercial use, modification, and distribution. Only requires keeping the copyr
Mixed Reality
MR combines real and virtual elements that interact with each other. Apple Vision Pro and HoloLens. Users manipulate dig
Mobile Analytics
Tracking app usage. Sessions, screens, events. Firebase, Amplitude.
Mobile Backend
Server services for mobile apps. Auth, database, push, storage.
Mobile Database
On-device data storage. SQLite, Realm, Core Data.
Mobile Framework
Tool for building mobile apps. React Native, Flutter, SwiftUI.
Mobile Network
Cellular data connection. 4G, 5G. Carrier dependent.
Mobile Payment
Paying via mobile device. Apple Pay, Google Pay. NFC contactless.
Mobile Processor
System-on-chip for phones like Snapdragon or A-series
Mobile Security
Protecting mobile devices. Encryption, biometrics, MDM.
Mobile Testing
Testing apps on devices/emulators. UI, performance, compatibility.
Modem
Hardware for cellular connectivity. Integrated in SoC or separate.
Motherboard
The main board connecting all components: CPU, RAM, storage, GPU. Socket, chipset, and form factor (ATX, mATX, ITX) defi
Motion Sensor
Sensors detecting device physical movement
Multi-Camera
Multiple rear cameras covering different focal lengths
Multi-Touch
Screen detecting multiple simultaneous touch points. Pinch, zoom.
MVP
Minimum Viable Product — the simplest version of a product that validates a business hypothesis. Focus on essential feat
Nanotechnology
Engineering at the nanometer scale (1-100nm). Applications in medicine, materials, and electronics. 3nm transistors in t
Native App
An application developed specifically for one platform (iOS with Swift, Android with Kotlin). Maximum performance and fu
Nearby Share
Android/Chrome OS file sharing. Wi-Fi Direct. Google's AirDrop equivalent.
Neural Engine
Apple's dedicated AI/ML hardware in Apple Silicon chips. Accelerates on-device ML tasks: Face ID, photo processing, Siri
Neural Network Compiler
Software optimizing neural network models for specific hardware. TVM, ONNX Runtime, and Apple ANE compiler. Converts mod
Neural Radiance Field
NeRF — AI technique creating 3D scenes from 2D photos. Photorealistic novel viewpoints from a handful of images. Applica
NFC
Near Field Communication — very short-range wireless (~4cm). Powers contactless payments (Apple Pay, Google Pay), transi
NFT
Non-Fungible Token — a unique blockchain token representing digital ownership: art, music, collectibles. Boomed in 2021-
Night Mode
Camera feature for low-light photos. AI processing, long exposure.
Night Shift
Blue light filter adjusting screen warmth for evening use
Noise Cancellation
Active noise cancellation removing ambient sound
Notification
System or app alert delivered as banner badge or sound
Notification Channel
Android feature grouping notifications by type with user-configurable priority. Users control which notification types t
NPU
Neural Processing Unit — dedicated chip for AI inference on-device. Intel, Qualcomm, and Apple include NPUs. Enables AI
NVMe
Non-Volatile Memory Express — protocol designed for SSDs. Much faster than SATA. PCIe 5.0 NVMe reaches 14,000+ MB/s. The
OEM
Original Equipment Manufacturer. Samsung, Xiaomi build Android devices.
OLED
Organic Light-Emitting Diode — display where each pixel emits its own light. Perfect blacks, infinite contrast, and wide
OLED Burn-in
Permanent image retention on OLED displays from static elements displayed too long. Navigation bars and status bars are
On-Device AI
Running AI models directly on user devices without cloud. Apple Neural Engine, Qualcomm NPU, and Google TPU Mobile. Priv
Open Source
Software with open source code and a license allowing use, modification, and distribution. Linux, Git, PostgreSQL, and R
Operating System
Base software managing hardware and providing services to applications. Windows (desktop), macOS (Apple), Linux (servers
Optical Image Stabilization
OIS reducing camera shake in photos
Optical Zoom
Genuine magnification without digital quality loss
OTA Update
Over-the-air software update. Downloaded and installed wirelessly.
Passive Cooling
Heat dissipation using heatsinks without moving parts
PCIe
Peripheral Component Interconnect Express — high-speed interface connecting GPUs, SSDs, and expansion cards. PCIe 5.0 de
Pen Input
Stylus interaction. Apple Pencil, S Pen. Drawing, notes, precision.
Performance Mode
Device setting maximizing speed. Higher clock, more battery usage.
Periscope Lens
Folded optics enabling 5-10x optical zoom in phones
Photo Library
Device image storage. Camera Roll, Google Photos. Cloud sync.
PIP
Picture-in-Picture. Video floating over other apps while multitasking.
Play Store
Google's Android app marketplace. 3.5M+ apps. Review process.
Podcast App
Audio content player. Apple Podcasts, Spotify, Pocket Casts.
PoE
Power over Ethernet — delivering electrical power alongside data through Ethernet cables. Powers security cameras, acces
Power Management
OS managing energy usage. Sleep modes, background limits.
Privacy Dashboard
Android/iOS view of app permission usage. Camera, mic, location access.
Process Node
Chip manufacturing technology. 3nm, 5nm, 7nm. Smaller = more efficient.
Processor
A chip executing software instructions. CPUs for general tasks, GPUs for parallel, and NPUs for AI. Apple Silicon, Intel
Product Owner
Responsible for defining and prioritizing the product backlog. Represents stakeholders and users. Ensures the team works
Profile (Mobile)
User account or configuration set. Work profile, personal profile.
ProMotion
Apple's adaptive refresh rate technology. Dynamically adjusts from 1Hz to 120Hz based on content. Smooth scrolling when
Proximity Sensor
Detects nearby objects. Turns off screen during calls.
Push Notification
Messages sent from server to user's device, even when the app isn't open. Engagement tool but overuse causes uninstalls.
QLC NAND
Quad-Level Cell — flash storage storing 4 bits per cell. Higher density and lower cost than TLC. Slightly lower enduranc
Qualcomm Snapdragon
Qualcomm's SoC platform powering most Android flagships. Integrates CPU, GPU, NPU, modem, and ISP. Snapdragon 8 Gen 3 co
Quantum Computing
Uses qubits instead of classical bits. Superposition and entanglement allow solving certain problems exponentially faste
Quantum Supremacy
A quantum computer solving a problem infeasible for classical computers. Google claimed it in 2019 with Sycamore. Debate
Qubit
Quantum bit — the basic unit of quantum computing. Unlike bits (0 or 1), qubits can be in superposition of both states s
Quick Settings
Android notification shade toggles for Wi-Fi Bluetooth
RAM
Random Access Memory — fast volatile memory. Running programs live in RAM. DDR5 is the current standard. 16GB minimum fo
RAM Management
OS allocating memory to apps. Kills background apps when needed.
Ray Tracing
Rendering technique simulating how light bounces in real environments. Realistic reflections, shadows, and lighting. NVI
React Native
Meta's framework for building native mobile apps with React and JavaScript. Bridges to native components. Widely adopted
Rear Camera
Back-facing primary camera for photography
Recovery Mode
Special boot mode for device troubleshooting and factory reset
Refresh Rate
How many times per second a display updates its image. 60Hz standard, 120Hz premium, 240Hz gaming. Higher rates = smooth
Release Build
Optimized app version for distribution. Minified, no debug info.
Remote Desktop
Controlling computer from mobile device. Chrome Remote Desktop.
Remote Wipe
Erasing device data remotely when lost or stolen
Responsive UI
App interface adapting to screen sizes. Phones, tablets, foldables.
Retina Display
Apple high pixel density display marketing term
RISC-V
An open-source instruction set architecture (ISA). Free to implement, no licensing fees. Growing alternative to ARM. Use
Roadmap
A strategic plan defining a product's vision, direction, and progress over time. Prioritizes features by impact and effo
Robotics
A field combining mechanical engineering, electronics, and software to create robots. Industrial, surgical, and humanoid
Root Access (Mobile)
Admin privileges on Android. Custom modifications. Security risk.
Rugged Device
Durable device rated for drops dust and water
Runtime Permission
Permission requested when needed, not at install. Android 6+.
Satellite Communication
Direct satellite messaging from mobile devices
Screen Protector
Glass or film shield protecting device display
Screen Recording
Capturing device screen as video. Built into iOS and Android. Used for tutorials, bug reports, and content creation. OBS
Screen Size
Display diagonal measurement in inches
Screen-to-Body
Ratio of display area to total front surface
Screenshot
Capturing current screen as image. Power+Volume Down, gesture.
Scrum
An agile framework for project management with defined roles (PO, Scrum Master, Dev Team), events (sprints, dailies), an
SDK
Software Development Kit. Tools for building apps. Android SDK, iOS SDK.
Secure Enclave
Apple's dedicated security chip storing biometric data and encryption keys. Isolated from main processor. Touch ID, Face
Selfie Camera
Front-facing camera optimized for self-portraits
Sensor Fusion
Combining multiple sensor data. Accelerometer + gyroscope + magnetometer.
Settings App
System configuration application. Wi-Fi, display, accounts, privacy.
Sideloading
Installing apps outside official store. APK on Android, enterprise iOS.
SIM Card
Subscriber Identity Module. Identifies carrier account. Nano-SIM, eSIM.
Sleep Mode
Low-power device state. Screen off, background limited.
Slow Motion
High frame rate video capture at 240fps or 960fps
Smart Assistant
AI helper. Siri, Google Assistant, Alexa. Voice commands.
Smart Contract
Self-executing code on the blockchain that runs when conditions are met. Ethereum and Solana support smart contracts. Fo
Smart Display
Screen-equipped smart speaker like Echo Show
Smart Home
Connected home ecosystem with automated devices. Lights, locks, thermostats, cameras, and speakers. HomeKit, Alexa, Goog
Smart Ring
Finger-worn wearable for health tracking like Oura Ring
Smart Speaker
Voice-controlled speaker. HomePod, Echo, Nest Audio.
Smartphone
Touchscreen mobile computer running iOS or Android
Smartwatch
Wrist-worn computer. Apple Watch, Galaxy Watch. Health, notifications.
SoC
System on a Chip — integrating CPU, GPU, NPU, modem, and more on one chip. Apple M4, Qualcomm Snapdragon 8 Gen 3, and Me
Spatial Audio
3D sound that adapts to head position. AirPods with head tracking, Dolby Atmos, and Sony 360 Reality Audio. Creates imme
Spatial Computing
Computing in 3D space using AR/VR. Apple Vision Pro defines the category. Interact with digital content in physical spac
Split Screen
Running two apps simultaneously. Android multi-window, iPad Split View.
Sprint
A fixed period (usually 1-2 weeks) in Scrum during which the team completes a defined set of tasks. Includes planning, d
SQLite
A self-contained, file-based relational database. No server needed. Embedded in every smartphone, browser, and most appl
SSD
Solid State Drive — storage without moving parts. NVMe PCIe 4.0/5.0 reaches 7,000+ MB/s. Much faster than HDD. Samsung a
Status Bar
Top of screen showing time, battery, connectivity. System icons.
Storage (Mobile)
Device data capacity. 128GB, 256GB, 512GB, 1TB. UFS flash.
Streaming (Mobile)
Real-time media delivery. Netflix, Spotify, YouTube. Adaptive bitrate.
Sub-6 GHz
Lower 5G frequency band with wide coverage moderate speed
Substrate
The base material on which semiconductor circuits are built. Silicon wafer is the standard substrate. Advanced packaging
Super AMOLED
Samsung enhanced OLED display technology vibrant efficient
Surround Sound
Multi-channel audio like 5.1 or 7.1 or Dolby Atmos
Swift
Apple's modern programming language for iOS, macOS, watchOS, and tvOS. Safe, fast, and expressive. Replaced Objective-C
SwiftUI
Apple's declarative UI framework. Describe what the interface should look like, not how to build it. Live previews, auto
System Update
OS version upgrade. Feature and security updates.
System-on-Module
SoM — a small board with processor, memory, and storage as a complete computer. Raspberry Pi Compute Module and NVIDIA J
SystemOnChip
SoC design integrating all computer components on a single chip. Apple M4 includes CPU, GPU, Neural Engine, memory contr
Tablet
Large-screen mobile device. iPad, Galaxy Tab. Productivity and media.
TDP
Thermal Design Power — the maximum heat a chip generates under load, measured in watts. Guides cooling system design. 65
Telephony
Voice calling capabilities. VoLTE, Wi-Fi Calling. Carrier services.
Telephoto Lens
Long focal length lens for 3x or 5x optical zoom
Tensor Chip
Google custom mobile SoC with AI-focused design
Tensor Core
Specialized processing units in NVIDIA GPUs for matrix operations. Accelerate AI training and inference by 10-20x over s
Test Flight
Apple beta testing platform. Distribute pre-release iOS apps.
Thermal Management
Controlling device temperature. Throttling, heat pipes, vapor chambers.
Thread
A low-power mesh networking protocol for smart home devices. Works with Matter. Self-healing network where devices relay
Thunderbolt
Intel's high-speed connection standard. Thunderbolt 4 delivers 40Gbps, Thunderbolt 5 up to 120Gbps. Connects displays, s
Time-of-Flight
Sensor measuring distance using light travel time
Touch ID
Apple fingerprint authentication. Home button or power button sensor.
Triple Camera
Three rear cameras wide ultra-wide and telephoto
Turbo Boost
Intel technology increasing clock speed under load. Thermal headroom.
UEFI
Unified Extensible Firmware Interface — modern BIOS replacement. Supports disks >2TB, Secure Boot, graphical interface,
UFS
Universal Flash Storage — high-speed storage standard for mobile devices. UFS 4.0 reaches 4,200 MB/s. Faster than eMMC.
UI Kit
Pre-built UI component library. UIKit (iOS), Material Components (Android).
Ultra-Wide Lens
Very wide angle camera lens 120 degrees or more
Ultra-Wideband
UWB — radio technology for precise spatial awareness. AirTag and Samsung SmartTag use UWB for centimeter-level tracking.
Under-Display Camera
Camera hidden behind screen with no notch or hole
Unlock
Removing device lock. PIN, pattern, biometric. Also: carrier unlock.
USB Debugging
Android developer feature. Connect to computer for debugging.
USB Power Delivery
USB PD — protocol enabling up to 240W charging over USB-C. Negotiates voltage and current between charger and device. On
USB-C
Universal connector standard replacing USB-A, Micro-USB, and Lightning. Reversible plug, supports data, charging, and vi
USB4
The latest USB standard unifying USB and Thunderbolt. 40-80 Gbps bandwidth. USB-C connector. Backwards compatible. Tunne
User Interface
Visual elements users interact with. Buttons, lists, navigation.
Variable Refresh Rate
VRR — display technology matching refresh rate to content frame rate. Eliminates screen tearing without input lag. G-Syn
Vertical Mode
Portrait device orientation default for phone use
Vibration Motor
Hardware creating haptic feedback. Linear actuator, ERM motor.
Video Call
Real-time video communication. FaceTime, Google Meet, Zoom.
Virtual Reality
VR replaces the real world with an immersive digital environment. Meta Quest, PlayStation VR, and Valve Index. Gaming, t
Voice Command
Controlling device by speaking. Hey Siri, OK Google.
Voltage Regulator
Component controlling power delivery to processor
VoLTE
Voice over LTE — HD voice calls over 4G network.
Volume Control
Adjusting audio levels. Physical buttons, on-screen slider.
VP9
Google's royalty-free video codec. Better compression than H.264, widely supported. YouTube uses VP9 for most playback.
Wafer
A thin disk of semiconductor material (silicon) on which integrated circuits are fabricated. 300mm wafers are standard.
Wake Word
Phrase activating voice assistant like Hey Siri or OK Google
Watchdog Timer
Hardware timer restarting system if software hangs. Reliability.
Waterproof
IP68 rated device submersible to specified depth and time
Wear OS
Google's smartwatch platform. Formerly Android Wear.
Wearables
Wearable electronic devices: smartwatches (Apple Watch), fitness trackers, smart glasses. Monitor health, fitness, and n
Web3
A vision of decentralized internet based on blockchain. Digital ownership, DAOs, DeFi, and identity. Intense debate abou
WebGPU
Next-generation browser API for GPU computing and graphics. Successor to WebGL. Exposes modern GPU features. Enables ML
WebView
A browser component embedded in a native app to display web content. Hybrid apps use WebViews extensively. Native perfor
Wi-Fi 6E
Extension of Wi-Fi 6 into the 6GHz band. More channels, less interference, lower latency. Ideal for dense environments.
Wi-Fi 7
IEEE 802.11be — the latest Wi-Fi standard. Up to 46Gbps, 320MHz channels, multi-link operation. Dramatically reduces lat
Wide Angle Lens
Standard main camera approximately 26mm equivalent
Widget (Mobile)
App content on home screen without opening app. Weather, calendar.
Windows
Microsoft's OS, dominant on desktop (72% market share). WSL2 allows running Linux natively. PowerShell and Terminal impr
Wireless Charging
Qi standard inductive charging. Place device on pad.
Wireless Earbuds
Bluetooth earphones without wire like AirPods
x86 Architecture
The dominant desktop and server processor architecture by Intel and AMD. CISC design with decades of software compatibil
Xcode
Apple's IDE for iOS/macOS development. Swift, SwiftUI, Interface Builder.
Zoom
Image magnification optical lossless or digital crop-based
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