lesson 3 Cpu continued Flashcards
The main function of the cpu
to execute instructions or programs
cpu speed is measured in?
hertz
what does a multi core cpu offer over a single core
Multicore processors execute instructions more quickly than single-core processors.
is now integrated with graphics on newer cpu dies
northbridge
is able to protect areas of memory that contain operating system files from malicious attacks by malware.
the NX bit or execute and disable bit
if you have a 64 bit cpu then you need a what bit operating system?
64bit
Pins covering majority of
underside. Locked in place by retaining arm
PGA -pin grid array
Use lands that stick out
and touch the CPU’s contact points
LGA- land grid array
enables a single CPU to accept
and calculate two independent sets of instructions
simultaneously, simulating two CPUs. Designed to compete
with true multi-CPU systems.
Hyper-threading
CPUs physically contain two or more actual
processor cores,
multi core cpu
Built into CPU and gives fast access to the most
frequently used data. First level access by CPU and
usually found in small amounts
L1 cache
Built on the CPU (on-die) - Accessed 2nd and
provides CPU with less frequently used data.
L2 cache
Largest capacity of the 3 and has the most
latency; therefore is the slowest
L3 cache
LGA 775( legacy socket type)
intel xeon, intel celeron, core 2 duo
typical, i5,i3,celeron, and pentium socket types
LGA 1155 and 1156,and LGA 1150
