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Computer PARTS
What is hardware?
• The hardware are the parts of the computer
itself including the Central Processing Unit
(CPU), keyboards, monitors, case, and drives.
(hard, CD, DVD, floppy, optical, tape, etc...).
What are devices?
• Other extra parts called devices include
mouse, printers, modems, scanners, digital
cameras, and cards (sound, color, video,etc).
• Together, hardware and devices are often
referred to as a personal computer.
What is Hardware?
• Refers to
objects that
you can
actually
touch, like
disks, disk
drives, display
screens,
keyboards,
printers,
boards, and
chips.
What is Software?
• Computer software, or
just software, is a
collection of computer
programs and related data
that provide the
instructions for telling a
computer what to do and
how to do it.
Processor
• The central processing unit (CPU) is the
portion of a computer system that carries out
the instructions of a computer program, to
perform the basic arithmetical, logical, and
input/output operations of the system.
Operating System
• The most important program
that runs on a computer.
• Every general-purpose computer
must have an operating system
to run other programs.
• Operating systems perform basic
tasks, such as recognizing input
from the keyboard, sending
output to the, keeping track of
files and directories on the disk,
and controlling peripheral
devices such as disk drives and
printers.
• For PCs, the most popular
operating systems are DOS,
OS/2, and Windows, but others
are available, such as Linux.
Memory
• A form of electronic storage, it is
used most often to identify fast,
temporary forms of storage. If your
computer's CPU had to constantly
access the hard drive to retrieve
every piece of data it needs, it would
operate very slowly. When the
information is kept in memory, the
CPU can access it much more
quickly. Most forms of memory are
intended to store data temporarily.
Hard Drive
• Computer hardware that holds and
spins a magnetic or optical disk and
reads and writes information on it
• They store changing digital
information in a relatively
permanent form. They give
computers the ability to remember
things when the power goes out.
• Nearly every desktop computer and
server in use today contains one or
more hard-disk drives.
Optical Drive
• Optical drives retrieve
and/or store data on
optical discs like CDs,
DVDs, and BDs (Blu-ray
discs) which hold much
more information than
classic portable media
options like the floppy
disk.
Optical Drive (Internal
BD/DVD/CD Burner)
Monitor
• A device that displays
signals on a computer
screen
• A monitor or display
(sometimes called a visual
display unit) is an
electronic visual display for
computers.
• Also knows as: "computer
screen" or "display."
Video Card
• A video card, video adapter,
graphics accelerator card,
display adapter, or graphics
card is an expansion card
which generates output
images to a display. Most
video cards offer added
functions, such as accelerated
rendering of 3Dscenes and 2D
graphics. Other modern high
performance video cards are
used for more graphically
demanding purposes, such as
PC games.
Sound Card
• A sound card (also
known as an audio
card) is an internal
computer expansion
card that facilitates the
input and output of
audio signals to and
from a computer under
control of computer
programs.
Speakers
• Speakers are one of the
most common output
devices used with computer
systems. Some speakers are
designed to work
specifically with computers,
while others can be hooked
up to any type of sound
system. Regardless of their
design, the purpose of
speakers is to produce
audio output that can be
heard by the listener.
Keyboard
• a keyboard is a data input
device for computers;
arrangement of keys is
modeled after the
typewriter keyboard
Mouse
• a hand-operated
electronic device that
controls the coordinates
of a cursor on your
computer screen as you
move it around on a pad.
Modem
• A device for transmitting
usually digital data over
telephone wires by
modulating the data into
an audio signal to send it
and demodulating an
audio signal into data to
receive it.
Computer Buying Project!
• Now, get started on your Computer Buying
Project!!!
• You must fill out the form while you research.
• Then, write an article for “SMMS Magazine”
on your new computer. Make sure you
include why you chose it, and specifications
for your article.