1.1.2 CPU performance
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9 Terms
What happens each time the clock ticks?
One Fetch Decode Execute cycle (one instruction is processed per tick)
What are clock speeds measured in?
Hertz
How fast are most clock speeds?
3 GigaHertz (~3 billion instructions processed per second)
How does clock speed correlate to CPU speed?
The higher the clock speed, the faster the CPU can run
How is the negative of having the clock run very fast?
The faster the clock speed, the more heat is generated. If the CPU gets too hot, it can get damaged
What is a core?
A complete processing unit within a CPU
What components of a CPU do cores also have?
ALU (Arithmetic Logic Unit), Control Unit (CU), and registers
What is ‘multitasking’?
Having extra cores to allow additional tasks to be carried out simultaneously, and this means that the processing time will speed up
Note 
Flashcards (35)