Transcript Types of Computers PowerPoint

Types of
Computers
Computer Technology
(S1 Obj 1-1)
Introduction
 There
are many different types of
computers available today.
 They
are categorized into different types
depending on their size and processing
power,
 What
are the categories?
Desktop / PC
A
computer that is
designed to meet the
needs of one individual
 Has a central processing
unit housed in a metal
case (often called a
tower) along with a
keyboard, mouse and
monitor
 Intended for use at one
single location
Desktops are used for:
 Desktops
are used for running applications
(full scale, complex software) including:
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Office Software—Word processing,
spreadsheets, presentations, and databases
Engineering designing software—CAD/CAM
and other designing software for homes,
kitchens, airplanes and more…
Photo and Video editing
Music—creating, playing and storing
Internet—Entertainment and information
Advantages and Disadvantages
 Easy
to upgrade
 Vast range of
software available
 Easy to mix and
match; customize to
meet your needs.
 Can be used
continually for long
periods of time
 Not
easily portable
 Requires large
amount of desk
space
 Needs a fan to
prevent overheating
 Must be plugged in
to power outlet
Laptop Computer
Also known as a notebook
 A portable computer that
integrates a monitor,
keyboard, touchpad, pointing
stick, and speakers into one
single unit
 Runs on a rechargeable
battery
 People choose to use a laptop
because of it’s portability and
the ability to run most of the
same applications that are run
on a desktop computer.
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Netbook
Smaller portable
computer that is more
lightweight and has less
processing power than a
laptop
 Can still run word
processing and
spreadsheet applications.
 More netbooks are sold
today than notebooks,
however, sales of
netbooks have declined
since the introduction of
tablets
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Advantages and Disadvantages
of Notebooks and Netbooks
 Portable
 Lightweight
 Runs
on a
rechargeable
battery
 Runs the same
software as a
Desktop PC
 More
expensive than
a comparable PC
 Easily damaged if
dropped
 Difficult to repair/
upgrade
Tablets
Mini, flat mobile computer that
uses a touch-sensitive screen for
input and navigation.
 Uses application software called
an App: a small, specialized
program downloaded onto
mobile devices.
 Uses: To access apps, e-mail,
Internet, minor editing of
documents, play games and
more… without lugging around a
larger computer.
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Advantages and Disadvantages
of Tablets
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Small and lightweight
Long battery life
Powers up immediately
(no boot process)
Tablets can run ‘lite’
versions of office software
With Internet access, it
can access your data
from anywhere
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Small screen
Keyboard is small and
difficult to use
Easily damaged, not
easily upgraded
Expensive Internet
Access plans
Mobile Device
A
small, pocket-sized computing
device with a touch screen and
memory card for data storage.
 Also known as a handheld.
 There are many kinds of mobile devices.
 They run apps
 Uses:
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Personal organization
Internet access
Phone
GPS
Camera
Media player for audio and videos.
Advantages and Disadvantages
of Mobile Devices
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You can carry it with you
(in your pocket)
Fingertip access to the
Internet, e-mail and data
Use of phone to contact
others
Helps with organization
GPS, phone, texting,
face-time and more…
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Expensive monthly access
plans
Reception is poor in some
areas
Safety (use while driving or
walking)
Social (limits association
interactions)
Distraction at work/school
Easy to lose or damage
Server
A
computer that provides
users with access to files and
printers on a network
 Has a large processors and
many hard drives
 Where network documents
and web pages are stored
 Used in schools, doctors
offices, small companies
 Makes it possible to access
documents on any network
computer in the building
Mainframe
A
Large, powerful
computer that carries out
different tasks for
thousands of people at
the same time
 Mainframes can process
large volumes of data
quickly and securely.
 They
must be operated by trained specialists
and kept in air-conditioned rooms away from
the office or factory floor.
Mainframes are used for:
 Utility
Companies (Gas and Electricity
suppliers)--for billing
 Banks –for managing your accounts
 Insurance Companies—managing
policies
 Airlines—reservations and ticket
processing
 Police—crime detection
Supercomputer
 The
fastest and most expensive computers
in the world at the time it is created
 They perform quadrillions of complex
calculations in a very short time
Supercomputers are used
for:
 Weather
forecasting
 Space exploration
 Scientific research
 Military weapons
research
 Pharmaceuticals
and Drug testing
Supercomputers continued…
 Can
tackle huge real
world calculations
that would be too
time consuming to
be completed by an
individual or any
other type of
computer
 Speed and accuracy
of calculations
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Generate lots of heat;
air-conditioning required
Miles of cables connect
the computer to
peripherals
Requires its own
electricity generator
Need special filters
installed to keep the
atmosphere free of dust
particles
Supercomputers
Click below to watch a video about supercomputers. Please keep in mind that the list of top 10
supercomputers in the world constantly changes as new supercomputers are created and older
supercomputers are updated.
So how fast is a Petaflop?
This short 2 minute video explains!
Wearable Computers
 Electronic
devices that
are integrated into
watches, wristbands,
belts, glasses, or even
clothing!
 Advantages:
Constant interaction
between the device
and the user
 Hands are free—Not
necessary to stop what
your are doing to use
the device.
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Wearable Computers Uses:
 Military
 Health
and Fitness
 Commerce
 Navigation
 Gaming
Nike FuelBand
Embedded Computers
A
single chip that
contains all of the
elements essential for
any computer
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RAM / ROM
CPU
Input / Output
Clock
Embedded Computers
Continued…
 Computer
chips are now cheap enough
to install in everyday items.
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Telephones
Televisions
Microwaves
Washing machines
Cars
Project Glass:
Google Glasses
If Time Permits…
Computers of the Future
Corning—Highly Engineered Glass…