The CPU, or central processing unit, processes all information and instructions used by a computer to control its parts. It is made up of millions of tiny switches called transistors mounted on a silicon chip. The speed at which a CPU processes data is measured in megahertz or gigahertz, and processors are becoming faster, with one gigahertz equaling one billion cycles per second. The major manufacturers of CPUs for computers are Intel with its Pentium processors and AMD with its Athlon processors, although other companies like IBM also produce processors.

1. By Mario Lino And Mario Rodriguez. 4ºB/D

2. DEFINITION
CPU means central
processing unit, also
noun as the
processor.
This processes the
information and
instructions used by
a computer.
All the computer
depends on its
central processing
unit to control its
other parts.

3. ITS
COMPONTENTS
A popular range of
processors is the
pentium series
produce by intel.The
chip shown here is
made up of over 27
millions tiny
switchets, called
transistors,
mounted on a slice
of silicon.

4. SPEED
The speed with
which a computer
processesdata and
instructions is
measured in either
megahertz or
gigahertz. The
microprocessors are
becoming faster and
faster, one gigahertz
is igual to
1000000000
cycles/second.

5. CPUs WORKING NOWADAYS
Basically two
manufacturers of
microprocessors exist
for the computer. On the
one hand Intel is, and
his range Pentium, and
for other one, the AMD
and his Athlon.

6. CPUs WORKING NOWADAYS
Also other
manufacturers exist
as IBM with the
PowerPC and others
much less known.
They differ, for
example, in size of
the transistors, size
of the memory or
double core
.Performance is very
much major that the
alone one).