Cpu – central processing unit

Motherboard Components

lCPU and accompanying chip set

lROM BIOS

lRAM

lBuses and expansion slots

lComponents used to change hardware configuration settings

uJumpers

uDIP switches

  uCMOS configuration chip

Basic Components of a CPU

lInput/output (I/O) unit

lArithmetic logic unit(s) (ALU)

lControl unit

lProcessor core speed (measured in gigahertz)

lWord size and data path

lEfficiency/special functionality of programming code

lSystem bus speeds the processor supports

lAmount of memory included with the CPU (internal and external cache)

lType of RAM, motherboard, and chip set the processor supports

lMultiprocessor ability

The Pentiums

lTwo ALUs (a true multiprocessor)

l64-bit external path size and two 32-bit internal paths (one for each ALU)

lTerminology

uBus speed

uProcessor speed

uMultiplier

uMemory cache

HYPER-THREADING

Cpu – central processing unit

Hyper-threading, officially Hyper-Threading Technology or HT Technology, abbreviated HTT or HT, is Intel's proprietary simultaneous multitasking (SMT) implementation used to improve parallelization of computations (doing multiple tasks at once) performed on x86 microprocessors. It first appeared in February 2002 on Xeon server processors and in November 2002 on Pentium 4 desktop CPUs.^[1] Later, Intel included this technology in Itanium, Atom, and Core 'i' Series CPUs, among others.
Normally processor are different form factors based on the years

 each processor core that is physically present, the operating system addresses two virtual or logical cores, and shares the workload between them when possible. The main function of hyper-threading is to decrease the number of dependent instructions on the pipeline. It takes advantage of superscalar architecture (multiple instructions operating on separate data in parallel). They appear to the OS as two processors, thus the OS can schedule two processes at once. In addition two or more processes can use the same resources. If resources for one process are not available, then another process can continue