📖 Tech Glossary
Every tech term, explained like a friend would. 20 terms and growing.
All | A | C | E | F | H | I | M | N | O | Q | R | S | W
Aperture
The camera opening that lets light in, written like f/1.8. Smaller number = bigger opening = better low-lig...
Codec
Technology that compresses audio/video. Better codecs (AAC, LDAC, aptX) = better wireless sound quality. Bo...
eSIM
A digital SIM built into the phone — no physical card. Switch carriers from settings. Handy for travel; ann...
Fast Charging
Wired charging above ~25W. Measured in watts (W): 25W ≈ 1 hour full charge; 120W+ can do it in 20 minutes. ...
Haptics
The vibrations your phone makes for taps and notifications. Good haptics feel like a real button click; che...
HDR
High Dynamic Range — brighter brights, darker darks, and more color in videos and games. Look for Dolby Vis...
IP Rating
Dust/water resistance grade. First digit = dust (6 is best), second = water (7 = 30-min immersion, 8 = deep...
mAh
Milliamp-hour — battery capacity. Bigger number = longer battery life. Phones: 4,500+ mAh is good in 2026. ...
Megapixel
One million pixels. Camera resolution is counted in these — but a 50 MP sensor with good software beats a 2...
Mesh Network
Two or more router units placed around your home sharing one network. Kills dead zones in multi-floor or la...
Mini-LED
LED TVs with thousands of tiny backlights instead of dozens. This gives near-OLED contrast with higher brig...
NPU
Neural Processing Unit — a chip inside new processors dedicated to AI tasks like live translation and photo...
OLED
A screen tech where each pixel makes its own light and can turn completely off. Result: perfect blacks, inf...
QLED
Samsung's name for LED/LCD TVs with a special layer that boosts color and brightness. Great for bright livi...
RAM
Your device's short-term memory — where apps live while you use them. More RAM = more apps stay open withou...
Refresh Rate
How many times per second your screen redraws the image, measured in Hertz (Hz). 60 Hz = 60 redraws per sec...
SoC
System on a Chip — the one chip combining processor, graphics, and AI engine. In phones it's the single big...
SSD
Solid State Drive — storage with no moving parts. Compared to old hard drives (HDD): 5–10× faster, silent, ...
Wi-Fi 6
Current standard wireless (2019+). Handles many devices at once without slowing down. Minimum you should bu...
Wi-Fi 7
Newest standard — roughly 4× Wi-Fi 6 speed, lower lag, and connections that don't drop. Worth it with gigab...