Tech Talk Made Easy: A Glossary of Common PC Acronyms


Looking to build a PC but you’re baffled by all the acronyms and shortcuts you’re encountering? The jargon does get confusing, especially when you have tons of info and specs to take in. To help you, we’ve broken down some essential abbreviations related to PCs and their components. Here they are in alphabetical order: 

BIOS (Basic Input/Output System):

A firmware program stored on a chip on the motherboard, the BIOS is the first software your PC runs when powered on. It performs essential startup checks and initializes components before launching the operating system. While UEFI (Unified Extensible Firmware Interface) is becoming more common, some systems still rely on BIOS. 

CPU (Central Processing Unit):

The CPU is a key component that interprets and executes instructions from software programs. Factors like the number of cores (which can handle multiple tasks simultaneously) and clock speed (which determines processing speed) will significantly impact your CPU’s performance. 

DDR (Double Data Rate):

A type of memory technology that transfers data twice per clock cycle, improving performance compared to older SDR (Single Data Rate) memory. DDR4 is the most common type for modern PCs. 

GPU (Graphics Processing Unit):

The GPU specializes in processing graphics and video, which makes it crucial for gaming, video editing, and other graphically demanding applications. GPUs are either integrated into the CPU, sharing the system’s memory and cooling, or found on dedicated graphics cards, whose own processors and memory (VRAM) make them more suitable for visually intensive tasks. 

HDD (Hard Disk Drive):

A traditional data storage device that uses spinning disks to store, read, and write data. While slower than newer SSDs (Solid State Drives), HDDs offer larger capacities at lower costs. 

HDMI (High-Definition Multimedia Interface):

HDMI is a widely used digital interface for transmitting high-definition audio and video signals over a single cable. It’s used to connect various devices like computers, laptops, and gaming consoles to monitors, TVs, and projectors. 

Hz (Hertz):

A unit that measures frequency. In PCs, Hz is often used to describe clock speed, which indicates the processing cycles a component can complete in a second. Higher Hz (for example, a 3.5 GHz CPU) generally indicates faster processing. GHz (Gigahertz) equals one billion Hz, and MHz (Megahertz) equals one million Hz. 

LAN (Local Area Network):

A network connecting devices within a limited physical space, like your home or office, allowing them to share resources. A LAN enables networked applications and fast data transfer. 

MB (Megabyte):

A unit of data storage equal to one million bytes. It’s commonly used for measuring storage capacities and file sizes. 

OS (Operating System):

The core system software that manages computer hardware and software resources, application execution, data storage, and security. Your PC’s OS provides a platform for running other programs and facilitates user interaction with the system. Examples include Windows, macOS, and Linux. 

PCIe (Peripheral Component Interconnect Express):

An interface used for connecting devices like graphics cards, SSDs, network cards, and other expansion cards to the motherboard. A motherboard typically has multiple PCIe slots with different lane configurations (x1, x4, x8, x16) offering varying bandwidths. Choosing components with compatible PCIe versions and slot configurations ensures optimal performance and avoids bottlenecks. 

PSU (Power Supply Unit):

The PSU converts electricity from a wall outlet into usable power for the other components inside a PC. Choosing a reliable PSU with sufficient wattage is vital for your PC’s stable operation. 

RAM (Random Access Memory):

Temporary storage that holds frequently accessed data for the CPU. More RAM generally improves your PC’s ability to multitask and run demanding applications. 

SATA (Serial Advanced Technology Attachment):

A common interface used to connect storage devices, such as hard drives, to the motherboard. 

SSD (Solid State Drive):

An SSD is a storage device that uses interconnected flash memory chips, making it a faster, quieter, and more reliable option than a traditional HDD (Hard Disk Drive) that relies on spinning platters. 

TB (Terabyte):

A unit of data storage equal to one trillion bytes. Commonly used for large storage capacities as in modern HDDs and SSDs. 

UEFI (Unified Extensible Firmware Interface):

The successor to BIOS, UEFI is a low-level firmware that manages startup procedures and hardware communication on your PC. 

UHD (Ultra-High Definition):

A display resolution offering significantly more detail than Full HD. UHD typically refers to monitors with a 3840 x 2160 resolution, also known as 4K, such as the Acer 27" Predator XB3 Gaming Monitor. 

USB (Universal Serial Bus):

USB is a standard interface for connecting peripheral devices like keyboards, mice, and storage drives to a computer. It’s ubiquitous in PCs because of its ease of use and versatility. Different USB versions offer varying speeds. 

VGA (Video Graphics Array):

An older video output standard used on monitors and graphics cards. While still found on some legacy systems, HDMI and DisplayPort are more common choices for modern PCs. 

VRAM (Video RAM):

Dedicated memory on a graphics card used to store data for video processing. As sufficient VRAM ensures smooth graphical performance, gamers and creative professionals like video editors typically require more VRAM for high-resolution textures and complex rendering. 

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About Micah Sulit: Micah is a writer and editor with a focus on lifestyle topics like tech, wellness, and travel. She loves writing while sipping an iced mocha in a cafe, preferably one in a foreign city. She's based in Manila, Philippines. 



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