Bit – A binary digit (either 0 or 1); it is the most basic unit of data that can be recognised and processed by a computer. 

Byte – A group of adjacent binary digits that a computer processes as a unit to form a character such as the letter “C”. A byte consists of eight bits.

Cache – A small, but fast memory that transparently improves the performance of a larger, but slower memory or storage device.
The bigger the cache, the faster the drive.

Cookie – A small piece of information you may be asked to accept when connecting to certain servers via a web browser. It is used throughout your session as a means of identifying you. A cookie is specific to, and sent only to, the server that generated it.

Digitiser – A device used to convert analog signals into digital signals. In the case of a mobile phones, this device would be the glass that covers the LCD.
If the glass is shattered but the image underneath is still good then you just need to replace the Digitiser, not the LCD.

HDD (Hard Drive Disk) – A data storage device used for storing and retrieving digital information using rapidly rotating disks (platters) coated with magnetic material.
The most common form of storage out there. You can get inexpensive, large storage capacities using this technology.

LCD (Liquid Crystal Display) – Refers to the flat panel display, electronic visual display, or video display that uses liquid crystals to display an image with the help of a backlight.
The part that actually displays the image.

LED (Light-Emitting Diode) Display – A flat panel display, which uses an array of light-emitting diodes as a video display. It can also be used as the source of light to backlight an LCD.
The part behind the LCD that is needed to see the picture.

OEM (Original Equipment Manufacturer) – Designates a replacement part made by the manufacturer of the original part.

Refurbished – Refers to products that have been previously returned to a manufacturer or vendor for various reasons. Refurbished products are normally tested for functionality and defects before they are sold, and thus are the approximate equivalent of certified pre-owned cars. Synonymous with “used”, “reconditioned”, “remanufactured”, “refreshed”, “recycled”, or “repaired”.

  • Cases and Bags: Usually returned to the distributor after a change of mind return. Checked and repacked; warranty may vary.
  • Computer, iPhone and iPad Replacement Parts: Usually the only parts we’re able to source. Either returned to factory, repaired and tested or removed from machines that have been deemed faulty for some other reason not related to the refurbished part. May have scratches and/or small dents.
  • External Storage: Usually returned to the distributor after a change of mind. Tested and repacked; warranty may vary.
  • Internal Hard Drive: Usually returned to the manufacturer after a fault, repaired and tested. Comes re-certified with a new warranty.


RMA (Return Merchandise Authorisation)
– Also called Return Goods Authorisation (RGA) is a part of the process of returning a product in order to receive a repair, replacement or refund during the product’s warranty period. The purchaser of the product must contact the manufacturer (or distributor or retailer) to obtain authorisation to return the product. The resulting RMA or RGA number must be displayed on or included in the returned product’s packaging; no returns are accepted without this number.

RPM (Revolutions Per Minute) – A measure of the frequency of a rotation. It annotates the number of turns completed in one minute around a fixed axis.
The higher the RPM, the faster the drive. Lower RPM will be more quiet and preserve power.

SSD (Solid-State Drive) – A data storage device, sometimes called a solid-state disk or electronic disk, that uses integrated circuit assemblies as memory to store data persistently.
Very fast drive that will speed up any new or old computer.

Third Party – Designates a replacement part not made by the manufacturer of the original part.
A cheaper option than the OEM parts yet almost impossible to see any difference once installed.