Purchasing a computer can be a daunting task, especially when you’re bombarded with the technical jargon in computer ads and the information at the store. This blog will help to demystify the common terms you’ll encounter and help you make an informed decision.
Let’s dig into the most common terms you’ll see in computer ads and what they mean.
Processor or central processing unit (CPU):
The CPU is the primary component of a computer that processes instructions. It runs the operating system and applications, constantly receiving input from the user or active software programs. The CPU processes the data and produces outputs, which may be stored by an application or displayed on the screen. Depending on what you plan to do with the computer will determine how powerful a processor you need. Gaming, video editing, and serious data processing will require more powerful processors.
When purchasing a computer, you’ll see the following information about the CPU:
- GHz (Gigahertz): This measures the clock speed of the CPU. The higher the GHz means faster processing of data even with multiple applications running.
- Cores: Modern CPUs have multiple cores, allowing them to process more tasks simultaneously. Common configurations include dual-core, quad-core, and octa-core.
- Threads: Threads are virtual cores that help in multitasking. More threads can improve performance in multi-threaded applications.
Memory (RAM):
- GB (Gigabytes): The amount of RAM, which affects how many tasks your computer can process at once. More RAM is better for multitasking. Most computers for home and business use will have between 8 to 16 GB of RAM. For most home and business uses, 8 to 16 GB of RAM is sufficient.
- DDR4/DDR5: Types of RAM. DDR5 is the latest and fastest, but DDR4 is still widely used and sufficient for most users. When looking at computers for home and small office uses (web browsing, accounting, and streaming), DDR4 will be the most common memory in those machines. Gaming computers and computers used for graphics, video and music editing, and intensive data processing should have DDR5 memory.
Storage:
- HDD (Hard Disk Drive): Traditional storage with moving parts. It’s cheaper but slower. Not as common now as it has been. But may still be a component in lower cost computers.
- SSD (Solid State Drive): Faster and more reliable storage with no moving parts. More expensive but significantly improves performance.
- TB (Terabytes) and GB (Gigabytes): Measures of storage capacity. 1 TB = 1000 GB. Common drive capacities in mid-range computers will be 256 or 512 GB.
Graphics Card (GPU):
- Integrated Graphics: Built into the CPU, suitable for basic tasks and light gaming. This type of graphics card shares the RAM used for processing which can affect performance but is not an issue for basic applications.
- Dedicated Graphics: Separate GPU with its own memory (VRAM), essential for gaming, video editing, and 3D rendering.
- VRAM (Video RAM): Memory used by the Dedicated Graphics Card or GPU. More VRAM is better for handling high-resolution textures and complex graphics.
Display:
- Resolution: The number of pixels on the screen. Resolution expressed as the number of horizontal and vertical pixels on a display screen. Higher resolutions mean more pixels and greater clarity. Common resolutions include Full HD (1920×1080), 4K (3840×2160).
- Refresh Rate: Measured in Hz (Hertz), it indicates how many times the screen refreshes per second. Higher refresh rates (120Hz, 144Hz) are better for gaming and streaming of video.
Ports and Connectivity:
- USB (Universal Serial Bus): Common interface for connecting peripherals. USB 3.0 and USB-C are faster than the older versions. Look for computers that have both types of USB ports.
- HDMI (High-Definition Multimedia Interface): Used for transmitting video and audio to monitors and TVs.
- Display Port: A newer digital audio and video interface for connecting to monitors and projectors.
- Ethernet: Wired network connection, faster and more stable than Wi-Fi.
Operating System (OS):
- Windows: Versatile and widely used, compatible with most software.
- macOS: Exclusive to Apple computers, known for its sleek design and integration with other Apple products.
- Chrome OS: Lightweight and web-focused, found on Chromebooks.
Battery Life (for Laptops):
- mAh (Milliamp Hours): Measures battery capacity. Higher mAh means longer battery life.
- Hours of Usage: Estimated battery life based on typical usage.
Wireless Networking:
- Wi-Fi: Wireless networking technology. Wi-Fi 6 is the latest standard, offering faster speeds and better performance in crowded areas.
- Bluetooth: Wireless technology for connecting peripherals like keyboards, mice, and headphones.
Understanding the terms in computer ads or listed by computers in the store will allow you to make a more informed decision when purchasing a computer. Whether you’re a casual user, a gamer, or a professional, knowing what to look for can help you find the perfect machine for your needs.
Helpful Links:
Laptop Buying Guide (2024): – https://www.wired.com/story/how-to-buy-the-right-laptop-for-you/
Best Desktop Computer Buying Guide – https://www.consumerreports.org/electronics-computers/computers/buying-guide/
Here’s everything to consider when buying a CPU in 2024 – https://www.digitaltrends.com/computing/cpu-buying-guide/
Dedicated Graphics Card vs. Integrated Graphics: Which is Better? – https://techguided.com/dedicated-graphics-card-vs-integrated-graphics/