A microprocessor: is simply a
computer processor that has been configured into the design and function of a microchip. Sometimes
referred to as a logic chip, this small component functions as the means of
executing the command to start booting up a computer. As part of the process,
the microprocessor initiates the activation of all the components necessary to
allow the computer to be used, such as waking the operating system.
The basic functionality of this
processor is all based on its inherent ability to respond to and generate
mathematical and logical operations. This is made possible with the use of
registers, within which resides all the data required to execute such basic
functions as addition and subtraction. The configuration of the registers also
allows the microprocessor to handle tasks like comparing two different numbers
and retrieving numbers from various areas and redistributing them.
The microprocessor in a computer
activates the operating system and performs the calculations that keep it
running.
DEVICES
THAT HAVE MICRO PROCESSOR ARE AS FOLLOWS:
PERSONAL
DEVICES:
Cell phones, watches, Calculators, Cameras Ipods, (Itouch, Ipads, Zune, other
mp3 players, etc), Metal detectors, Remote-controlled airplanes.
COMMERCIAL
DEVICES: Treadmill
(incumbent bike, elliptical), supermarket bar code scanners, film processors, movie
projectors
BUSINESS
DEVICES:
Printers Faxes, Copiers, Environmental control systems, Automatic door openers
(supermarkets, hotels), Credit card processors
ATM machines.
ATM machines.
HOME
DEVICES: Clock/Radios,
Stoves/ovens, Microwave ovens, Washing machines, Driers, TV's, DVD players, DVD
recorders, DVR devices, Air Conditioners, Water pumps, Burglar alarm systems, Fire
alarm systems.
GAMES
DEVICE:
Children's toys (like Simon says, remote controlled things)
hand-held games (game boys, etc), WII and X-boxes (and other gaming systems), Telescopes (my MEAD has software that can track earth moment, etc)
halloween (and other holiday) decorations electronic signs billboards (like at ball games and Times Square).
hand-held games (game boys, etc), WII and X-boxes (and other gaming systems), Telescopes (my MEAD has software that can track earth moment, etc)
halloween (and other holiday) decorations electronic signs billboards (like at ball games and Times Square).
MEDICAL
DEVICE: Pace
makers, Insulin auto-injectors, Heart monitors
hearing aids.
hearing aids.
MUNICIPAL
DEVICES: Traffic
lights Walkie-talkies (and other fire/police/emt communication devices) train
switching devices
EZ-pass readers (and other simiar toll-paying devices)
train ticket purchasing machines.
EZ-pass readers (and other simiar toll-paying devices)
train ticket purchasing machines.
MILITARY
DEVICE: Smart
bombs, Missiles, Guns.
Household
Devices: A complex home security system or
the programmable thermostat neatly attached to the wall contains microprocessor
technology. Technology-based home security system microprocessors assist with
monitoring large or small properties. The simplest programmable thermostat
allows you to control the temperature in your home. Entering the preferred
degree and achieving it on a consistent basis requires some intelligence on the
part of the thermostat. A microprocessor in the system works with the
temperature sensor to determine and adjust the temperature accordingly.
Dishwashers, washing machines, high-end coffee makers and radio clocks contain
microprocessor technology.
REASONS
Calculators were arranged from the
beginning so that the lowest digits were on bottom which is how the computer is
based. On the phone, if the lower numbers were on the bottom, the alphabet
would then start on the bottom.
RAM: it
is the main memory.
Hard-disk: It is the storage required by the
computer
Motherboard
including processor: It
evolves all the jobs or processes in the computer.
Different buses
and wire lines for communication between all the devices.
Drives and input
pins.
No
in the sense that the basic function of a cell phone is to trasmit data (voice
in the form of electronic signals inside the cell phone, and as electromagnetic
waves thereout), and not to convert raw data into meaningful information, which
is the function of a computer. Thus, you should rather compare a cell phone to
a walkie talkie, or a two-way radio, because it works on the principle of
receiving incoming voice at a frequency, and sending outgoing voice at another
frequency.
However,
as technology developed, cell phones have become more versatile with new
features, and nowadays, most of the cell phones also do conversion of raw data
into meaningful information, e.g. in mathematical calculations, inbuilt dictionary
(T-9 in Nokia phones), composer, etc. As such, cell phones can be considered as
computers in certain ways, even though computing is not their essential
feature. The costlier cellphones have even more features like surfing the
internet, etc. Cell phones also have operating system like computers (Nokia phones
use Symbian OS mostly). A cell phone is not essentially a computer, but a
transmitter and receiver built into one. However, due to its accessory
functions which convert raw data into meaningful information, it can be
considered a computer.
Radio operation
Part
of a cell phone's function is to interact witht eh sellular antenna it
recognizes which is closest to it. Soem of that interaction is the data stream
(the sounds, ans sometimes images, being trnasmitted or received), but quite a
lot of it is negotiation. For instance, to anthropomorphize shamelessly, I'm
this particular cell phone (phone number such and such, with this and so
properties) and I'd like to talk over your antenna and radio equipment to the
telephone system. Most modern cell phone systems include both some kind of
encryption (to prevent easy eavesdropping) and soem way to maximize the use of
the radio channels avaialble at any particular time. So the next thing the
phone and the nearest cell radio must do is to negotiateone or several
crypotographic keys, and a frequency (often several) and a power level (oftne
adjustable to prevent unnecessary interference) for the phone call. This is
often redone every so often, during the phone call, especially when the cell
phone moves out of range of one cell radio and into the area of another. Nearly
all of that negotiation is done between computes at the cell radio and in the
cell phone. speical purpose computers which can't do anything else, to be sure,
but computes nonethelss. The usual term in the industry is 'embedded computers'
in that they are so tied to the equipment they run as to be 'buried' within it.
Cell phone
non-radio features
And
most cell phones allow their users to use several databases (phone numbers and
names, ringtone to use for this user or that, menu choices to change this or
that setting, a micro editor for text messages and doing the database entry,
simple games, downloading, uploading, or displaying and storing images, and so
on. Again, these matters are handled by software running on very low poered and
not very powerful computers inside the cell phone. Embedded computers.
Differences from
desktop computers
So
your answer is certainly yes, but your cell phone isn't much like your PC. You
can't change its behavior, to add or delete any of the programs. They're stored
in non-volatile memory which keeps its content even when the battery is taken
out weeks or months without a battery might be too long, but for all practical
purposes the software in the phone, which runs on the computer, is permanent.
Changes in the
programming in a cell phone
However,
because misteaks are made -- in the programming or in fitting the cell phone
into a carrier's system (Sprint phones don't interact with their cell radios
the same way Ceingular phones do, and both are different from Veriszon) and so
on -- it's very useful to be able to change this or that part of the software.
if necessary, the changes can be downloaded to the cell phone when it connects
to the cell radio. This means that the memory which stores the software must be
changeable. It's usually a type of Programmable Read Only memory called Flash
ROM. Very mcuh the same thing is used in USB 'thumb drives'.