Electronics terms

Plain-English explanations of the specs and labels you will see when buying laptops, phones and PC parts in Singapore, new or pre-owned.

Refurbished

A used device that has been checked, repaired where needed and cleaned so it is ready to sell again. Condition and warranty vary by seller.

Grade A

A common label for used or refurbished items in very good condition, usually with little or no visible wear. Grading standards differ between sellers, so check the listing.

Battery health

How much charge a battery can still hold compared with when it was new, usually shown as a percentage on phones and laptops.

CPU

Central processing unit: the main processor that runs your computer’s programs. It affects everyday speed and multitasking.

GPU

Graphics processing unit, or graphics card. It renders images and video and matters most for gaming and creative work.

RAM

Memory a computer uses to hold the apps and files you are working on right now. More RAM helps with multitasking.

SSD

Solid-state drive: fast storage with no moving parts. It makes start-up and loading much quicker than an older hard disk.

PSU

Power supply unit: the part that powers a desktop PC. It needs enough wattage for all components, especially the graphics card.

📚 Guides: Used or refurbished laptop checklist · Gaming PC parts explained

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