Terms commonly used
CPU Wikipedia
Central Processing Unit
Computer Chip
Chip
CPUs (plural of CPU)
GPU Wikipedia
Graphics Processing Unit
Graphics Card
Card
GPUs (plural of GPU)
PCI-E Power Connectors
These cords come from the PSU. They are used to power the GPUs.
6+2 pin connector
8 pin connector
PCI-E Riser
The device used to connect the GPU to the Motherboard
"Riser" for short
PDU Wikipedia
Power Distribution Unit
110V or 220V "Power strip"
PSU Wikipedia
Power Supply Unit
Power Supply
PSUs (plural of PSU)
Public Key Wikipedia
This is the part of your wallet that you share with others.
When mining, your public key is the address where your coins are sent.
You can not access coins unless you have the private key for the given public key.
RAM Wikipedia
Random-Access Memory
"Sticks of RAM"
Motherboard Wikipedia
The main part of the computer where the CPU, GPU & hard drive are connected & communicate
Watchdog Circuit
A device that detects when the miner has crashed. It will automatically reboot the system.
"Watchdog" for short