Computer Cases
What is the primary purpose of a computer case?
To house, organize, and protect the internal electronic components of a computer.
What unit of measurement is used to state the speed of modern system clocks?
Gigahertz (GHz), which represents billions of clock cycles per second.
What is the main purpose of processor cooling?
To remove heat from the CPU and prevent overheating or thermal throttling.
What are the four core steps of the machine cycle performed by the CPU?
Fetch, Decode, Execute, and Store.
What is a register inside a computer processor?
A small, high-speed storage location directly inside the CPU used to hold data temporarily.
What are the two most common form factors (sizes) for desktop computer cases?
Full-tower and Mid-tower (Mini-ITX/Small Form Factor is also acceptable).
What is the main function of the system clock inside a computer?
To generate continuous electronic pulses that synchronize the timing and operations of all hardware components.
What paste-like substance must be applied between the CPU surface and the heatsink to fill microscopic air gaps?
Thermal paste (or thermal grease/compound).
During which phase of the machine cycle does the control unit translate an instruction into commands the computer can understand?
The Decode phase.
How does the access speed of a register compare to standard RAM?
Registers are significantly faster because they are built directly into the processor core.
Why is the internal layout and cable management of a computer case important for performance?
Proper layout ensures unobstructed airflow, which helps keep internal components cool.
What specific hardware component on the motherboard acts as the physical system clock?
A quartz crystal oscillator.
What is the difference between active cooling and passive cooling?
Active cooling uses moving parts like fans or pumps to move heat, while passive cooling relies strictly on heatsinks and natural airflow without moving parts.
Where does the CPU fetch an instruction from at the very beginning of the machine cycle?
The primary memory (RAM) or cache.
What specific register keeps track of the memory address of the next instruction waiting to be executed?
The Program Counter (PC).
What standard determines whether a specific motherboard will physically fit inside a specific computer case?
The motherboard form factor standard (such as ATX, Micro-ATX, or Mini-ITX)
What is the term for forcing a processor to run at a higher clock speed than its manufacturer-rated specification?
Overclocking.
How does a liquid cooling system pull heat away from a processor compared to a traditional air cooler?
It cycles liquid coolant through a water block on the CPU to absorb heat, pumps it to a radiator, and uses fans to dissipate the heat out of the case
What is the difference between the instruction cycle (I-time) and the execution cycle (E-time) within a single machine cycle?
I-time consists of fetching and decoding the instruction; E-time consists of executing the instruction and storing the result.
What is the purpose of the Accumulator register?
It temporarily holds the intermediate results of arithmetic and logic operations performed by the ALU.
In computer case design, what is the purpose of a "shroud" typically located at the bottom of the chassis?
To isolate the Power Supply Unit (PSU) and its cables from the main chamber to improve aesthetics and thermal management.
What is the relationship between the system clock and a processor's "multiplier"?
The processor's final clock speed is determined by multiplying the base system clock speed by the CPU's internal multiplier.
In processor cooling, what does the acronym TDP stand for, and what does it measure?
Thermal Design Power; it measures the maximum amount of heat (in watts) a cooling system needs to dissipate under a maximum workload.
What design technique allows a CPU to execute multiple steps of the machine cycle simultaneously across different instructions?
Pipelining.
What does a 64-bit processor architecture signify regarding its internal registers?
It means the CPU's general-purpose registers are 64 bits wide, allowing them to store larger numbers and directly address more memory addresses at once.