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 A computer is a general purpose device
that can be programmed to carry out a
set of arithmetic or logical operations
automatically. Since a sequence of
operations can be readily changed, the
computer can solve more than one kind
of problem.

 Charles Babbage, an English mechanical
engineer and polymath, originated the
concept of a programmable computer.
Considered the "father of the computer", he
conceptualized and invented the first
mechanical computer in the early 19th
century. After working on his revolutionary
difference engine, designed to aid in
navigational calculations, in 1833 he
realized that a much more general design,
an Analytical Engine, was possible. The
input of programs and data was to be
provided to the machine via punched
cards, a method being used at the time to
direct mechanical looms such as the
Jacquard loom. For output, the machine
would have a printer, a curve plotter and a
bell. The machine would also be able to
punch numbers onto cards to be read in
later.

 MEMORY: A computer's memory can be
viewed as a list of cells into which numbers can
be placed or read. Each cell has a numbered
“address” and can store a single number. The
computer can be instructed to “put the
number 123 into the cell numbered 1357” or to
“add the number that is in cell 1357 to the
number that is in cell 2468 and put the answer
into cell 1595.”

 MULTIPROCESSING: Some computers are
designed to distribute their work across
several CPU's in a multiprocessing
configuration, a technique once employed
only in large and powerful machines such
as supercomputers, mainframe computers
and servers. Multiprocessor and multi-core
(multiple CPU's on a single integrated
circuit) personal and laptop computers are
now widely available, and are being
increasingly used in lower-end markets as a
result.

 APPLE: The brand apple have so devices and
one of this devices is the mac :
 #MacBook Air: Consumer ultra-thin, ultra-
portable notebook, introduced in 2008.
 #MacBook Pro: Professional notebook,
introduced in 2006.
 # Mac Mini: Consumer sub-desktop computer
and server, introduced in 2005.
 #iMac: Consumer all-in one desktop computer,
introduced in 1998.
 #Mac Pro: Workstation desktop computer,
introduced in 2006.

 HEWLETT-PACKARD: The brand hewlett-packard have so devices
and one of this devices is the computer :
 HP Pavilion a1020n
 HP Pavilion a1200e
 HP Pavilion a1200y
 HP Pavilion a1330e
 HP Pavilion a1400 PC series - a1400e, a1400y, a1410e, a1410y
 HP Pavilion a1500 PC series
 HP Pavilion a1600 PC series - a1620e, a1620y, a1650e, a1650y
 HP Pavilion a6000 series
 HP Pavilion a6100la
 HP Pavilion dv4
 HP Pavilion dv5
 HP Pavilion dv7
 HP Pavilion d4000 series
 HP Pavilion dv6000 series
 HP Pavilion dv9000 series
 HP Pavilion p6600 PC series
 HP Pavilion s7300 Slimline PC series

 1. The speed and precision in the execution of
operations
 2. The quantity of time that can realize tasks
without feeling weariness.
 3. It stores great quantity of information the one
that can be used when it is necessary, to
modify it and if out the case to erase it.
 4. To reproduce and to stamp the quantity of
times that is necessary a text, or any material
that is needed. 5. To send or to receive
information from any place of the world across
such an important, effective and economic
way since is Internet.

 1-there is no royal contact between the
persons
 2-one can turn into an addiction
 3-does badly at sight
 4-the sedentarism promotes
 5-Can bring problems in the physical
thing for a bad position of the body
 6-promotes the illegal market of movies,
books, music, games, etc

 The term hardware (pronunciation AFI: ['
h?? D? W??] or [' h?? D? W??]) it refers to
all the tangible parts of an IT system; his
components are: electrical, electronic,
electromechanical and mecánicos.1 Are
cables, offices or boxes, peripheral of all
kinds and any another physical involved
element; by contrast, the logical support is
intangible and is called a software. The
term is own of the language Englishman
(literally translated: hard parts).

 is known like software1 to the logical
equipment or logical support of an IT
system, which understands the set of the
logical necessary components that
make possible the accomplishment of
specific tasks, in contraposition to the
physical components that are called a
hardware.

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All things about computers

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