Computer Cases
What is the primary purpose of a computer case?
To hold and protect all the internal components of a computer system.
What unit of measurement is typically used to state the speed of a modern system clock?
Gigahertz (GHz).
What substance must be applied between the CPU surface and the heatsink to fill microscopic air gaps and improve heat transfer?
Thermal paste (or thermal compound).
What are the four basic steps of the machine cycle, in order?
Fetch, decode, execute, and store.
Where are registers physically located inside a computer system?
Directly inside the CPU (processor).
What form factor standard determines the size and layout compatibility of cases, motherboards, and power supplies?
ATX (Advanced Technology eXtended).
What is the primary function of the system clock inside a computer?
To generate continuous electrical pulses that synchronize the timing of all computer operations.
How does a passive cooling system differ from an active cooling system?
A passive cooling system relies strictly on heatsinks and natural airflow without using moving parts like fans, whereas active cooling uses fans or pumps to move heat away.
During which step of the machine cycle does the control unit retrieve an instruction from the system memory?
The fetch step.
Why does a CPU use registers instead of just relying on standard RAM?
Registers provide the fastest possible data access speed for immediate instruction processing.
What is the main difference between a Full-Tower case and a Mid-Tower case?
A Full-Tower case is physically larger, offers more internal expansion bays, and supports larger motherboards compared to a Mid-Tower case.
What component on the motherboard vibrates at a specific frequency to regulate the system clock?
A quartz crystal oscillator.
What liquid cooling component is responsible for transferring heat from the coolant fluid out into the surrounding air?
The radiator.
What happens during the "decode" step of the machine cycle?
The control unit translates the instruction into signals that the CPU's internal components can understand.
Which specific register keeps track of the memory address of the next instruction that the CPU needs to execute?
The Program Counter (PC)
Why do some computer cases feature a dual-chamber design?
To separate heat-producing components like the GPU and CPU from the power supply and cables, improving airflow and aesthetics
What is the term for the process of forcing a component to run at a higher clock speed than its factory rating?
Overclocking
How do heat pipes inside a high-end air cooler transport heat so efficiently away from the base plate?
They use a closed-loop phase-change process where an internal liquid evaporates near the hot CPU, travels to the cooler end, condenses back into liquid, and cycles back.
Which component of the CPU handles the mathematical and logical calculations during the "execute" phase?
The Arithmetic Logic Unit (ALU).
What is the name of the special register that temporarily stores the intermediate results of arithmetic and logical operations?
The accumulator
In computer case design, what does the term "positive air pressure" mean, and how does it benefit the system?
It means more air is being forced into the case by intake fans than is being pulled out by exhaust fans, which helps prevent dust from entering through un-filtered gaps.
How does a clock multiplier affect the relationship between the system bus speed and the CPU speed?
It multiplies the base system clock frequency to allow the internal CPU operations to run at a much higher speed than the motherboard bus.
What specific physical phenomenon allows sealed heat pipes inside an air cooler to move heat rapidly away from the CPU base plate?
Phase change (the liquid inside evaporates from the heat and condenses at the cooler end).
What optimization technique allows a CPU to overlap steps of the machine cycle by starting a new instruction before the previous one finishes?
Pipelining.
What register holds the actual instruction that is currently being decoded and executed by the CPU?
The Instruction Register (IR)