Chapter 3, starting page 110 Flashcards
What is multithreading?
Also referred to as Hyper-Threading, this allows the CPU to run multiple threads at the same time, effectively turning the CPU into 2 CPUs on one chip.
What are the limitations of multithreading?
- the operating system and the application must be designed to take advantage of the feature.
- although the CPU simulates the actions of a second processor, it doesn’t double the processing power because the main execution resources are not duplicate.
What did Intel and AMD do to move beyond the single core CPU?
Began combining more than one core into the CPU chip. Now they have moved on to 4,6,8, and even 32 cores.
An example of multi-core cache utilizes the cache by dividing up the cache into dedicated areas. What are they commonly called?
L1D - L1 Data Cache
L1I - L1 Instruction Cache
L2 - cache on the motherboard
L3 - all cores share the large L3 cache
How does multi-core processing differ from Hyper-Threading?
Multicore CPUs divide up work independently of the OS, whereas Hyper-Threading requires the OS and the applications to be written specifically to work with Hyper-Threading.
Note that even with multi-core processors, applications must be modified or optimized for a big difference in performance.
What is the IMC in the CPU chip?
The IMC is the integrated memory controller that optimizes the flow of information into and out of the CPU. It enables faster control over things like the large L3 cache shared among multiple cores.
The GPU serves what function in the pc?
The Graphics processing unit is the video processor. The manufacturers have found that integrating the GPU into the CPU enhances the overall performance of the computer while at the same time reducing energy use, size, and cost.
What is the purpose of the NX bit technology?
NX bit technology enables the CPU to protect certain sections of the memory, and helps stop malicious attachs from getting to essential operating system files. Microsoft calls the feature Data Execution Prevention (DEP)
What two points are critical in selecting the correct CPU for a computer?
- Does the motherboard support Intel or AMD?
2. What socket does the motherboard have?
Comp TIA A+ exams usually have some questions about sockets. What socket does an Intel H4 Core i3 use? A Ryzen, A-Series use?
LGA 1151, AM4
When installing a CPU what are four things you must watch out for?
- use caution with the tiny pins on the CPU of the socket.
- ensure the power supply can supply enough power for the processor to function along with all other components on the computer.
- You must provice adequate cooling.
- Decide to leave the CPU at stock setting or to overclock it.
Intel CPUs use a _____ _____ _____ package for socketed CPUs, where the underside of the CPU has hundreds of _______ _______ that line up with the ______ _____.
land grid array
contact points
socket pins
AMD CPUs have _____ and the sockets have _____.
AMD uses the _____ _____ _____.
pins, holes.
pin grid array.
Both Intel and AMD use zero insertion force (ZIF) sockets. True or False
True
What component of the CPU causes the CPU to draw more power and therefor heat up?
transistors
