Laptop Glossary
Plain-language definitions of laptop specifications, ports, displays, batteries, storage, and platform terms.
Use this glossary while comparing retailer listings and manufacturer specifications. A familiar connector or marketing name may hide important differences.
Architecture
The processor instruction set and platform design, such as x86-64 or Arm. Application and driver compatibility can depend on it.
Aspect ratio
The proportional relationship between display width and height, such as 16:9, 16:10, or 3:2.
Auto Update Expiration (AUE)
Google’s published date after which a Chromebook model is scheduled to stop receiving automatic ChromeOS updates.
Battery cycle
A cumulative use of 100% of a battery’s capacity, which can happen across several partial discharges.
BIOS/UEFI
Low-level firmware that initializes hardware and starts the operating system.
Brightness
Display light output, often expressed in nits. Real comfort also depends on reflections and environment.
ChromeOS
Google’s operating system used on Chromebooks.
Clamshell
A traditional laptop design with a screen attached to a keyboard base by a hinge.
Colour gamut
The range of colours a display can reproduce, often compared with standards such as sRGB or DCI-P3.
Convertible
A laptop with a hinge or detachable design that supports tablet-like use.
Core
A processor execution unit. Modern processors may use several kinds of cores.
CPU
Central processing unit, the main general-purpose processor.
Dedicated graphics
A separate graphics processor, usually with its own graphics memory.
DisplayPort Alt Mode
A USB-C capability that can send DisplayPort video through a compatible port and cable.
Dock
A device that connects monitors, charging, networking, storage, and peripherals through one or more laptop ports.
eMMC
Embedded flash storage often found in low-cost devices; it is usually slower and less replaceable than an NVMe SSD.
Encryption
A method of protecting data so it cannot be read without the correct key or account credentials.
Firmware
Software stored in hardware components that controls low-level behaviour.
GPU
Graphics processing unit, used for display output, games, 3D, media, and supported accelerated applications.
Graphics memory (VRAM)
Memory used by a dedicated GPU for textures, frames, scenes, and accelerated work.
HDMI
A common digital connection for televisions, monitors, and audio/video equipment.
Integrated graphics
Graphics built into the processor or system package and usually sharing system memory.
IPS
A common LCD panel technology known for generally good viewing angles; quality still varies by panel.
Memory (RAM)
Fast working memory used by active applications and the operating system.
NPU
Neural processing unit, a specialized processor used by some on-device features. It is one component, not a substitute for CPU, GPU, memory, or software compatibility.
NVMe
A high-speed storage protocol commonly used by modern internal SSDs.
OLED
A display technology in which pixels emit their own light, offering strong contrast but with design-specific power and longevity considerations.
Operating system
The main software platform, such as Windows, macOS, or ChromeOS.
Panel
The physical display component. A laptop family can ship with several panel options.
Power Delivery (USB PD)
A USB charging protocol that negotiates supported voltage and power between compatible devices, cables, and chargers.
Refresh rate
How often a display updates each second, measured in hertz.
Resolution
The number of display pixels, such as 1920 × 1200.
Soldered memory
RAM attached directly to the main board and not normally replaceable.
SSD
Solid-state drive, the common storage type in modern laptops.
Secure Boot
A firmware security feature that helps ensure trusted software starts during the boot process.
Thermal throttling
Automatic reduction in performance to control temperature or power.
Thunderbolt
A high-speed connection standard implemented through compatible USB-C ports and devices.
TPM
Trusted Platform Module or equivalent platform security used for cryptographic functions and security features.
USB-A
The older rectangular USB connector used by many peripherals.
USB-C
A reversible connector shape. Its charging, video, and data capabilities vary.
USB4
A high-speed USB specification supported by compatible ports, cables, docks, and devices.
Watt-hour (Wh)
A unit of battery energy capacity.
Wi‑Fi
Wireless local networking. Real performance depends on router, environment, antenna, drivers, and supported standards.
Windows 11 eligibility
Whether a computer meets Microsoft’s Windows 11 hardware and firmware requirements.