2.  Help us perform tasks efficiently and
quickly
 Are used in almost every field/industry
 Made of various parts
› Input devices
› Output devices
› Processing devices
› Storage devices

3.  Hardware
› “Refers to all the physical
components connected
to a computer”
(microsoft.com)

4. Input Devices Output Devices
 Mouse  Monitor
 Keyboard  Printer
 Microphone  Speakers
 Scanner  Headphones
 Webcam  Projector
 Stylus
 Digital Camera

5. Processing Devices Storage Devices
 CPU  Hard Drive
 Memory  Floppy Disk
 Motherboard  CD-ROM
 Video Card  DVD-ROM
 Network Interface  Jump Drive
Card
 Sound Card

6.  This is the brain of
your computer.
 It interprets and runs
the commands you
give the computer.
 A processor these
days can have
several "cores," each
of which is similar to
an independent
processor.

7. Where information is stored and retrieved by the CPU.
RAM ROM
(Random access memory) (Read only memory)
› Main memory › Permanent
› Temporary › Used to store commands
› Only available when › Remains even when
computer is on computer is off

8.  A large circuit board
inside a computer
 Connects input, output
and processing
devices and tells the
CPU how to run.

9.  Used to process
graphics
 Because most of
today's programs are
graphically oriented,
the video card can
help almost any
program run more
efficiently.

10.  Hardware that allows a
computer to be
connected to other
computers (a network)
so information can be
exchanged between
them.

11.  Converts audio signals to
digital signals that can be
stored as a audio file.
 Converts audio signals to
electrical signals to play
through speakers or
headphones.

12.  An input and output
device that can
receive and burn
data.

13.  Main storage device
on a computer
 Stores the operating
system, the programs
and all of your
documents.
 When your computer
powers down, the
data on a hard drive
remains intact.

14.  CD-ROM  USB Flash Drive
› Commonly stores › “Jump drive”
music or pictures › Various sizes (4GB,
 DVD-ROM 8GB, 16GB)
› Can store more data › Stores files, pictures,
than a CD-ROM videos, etc.
› Commonly stores
movies and videos

15.  Software
› A collection of computer
programs and related
data that provide the
instructions for telling a
computer what to do and
how to do it.

16.  Provides the basic functions for computer
usage and helps run the computer
hardware and system.
› Device drivers
› Operating systems
› Servers
› Utilities
› Window systems

17.  Provides tools to assist a programmer in
writing computer programs, and software
using different programming languages in a
more convenient way.
› Compilers
› Debuggers
› Interpreters
› Linkers
› Text Editors

18.  Developed to aid in any task that benefits
from computation. It is a broad category,
and encompasses software of many kinds,
including:
› Business Software (QuickBooks, etc.)
› Databases
› Spreadsheets
› Video Games
› Productivity Programs (Word, PowerPoint,
Excel, etc.)

19.  The most important software on
the computer.
 Every computer must have an
operating system to run other programs.
 Controls and manages the hardware
connected to the computer.
 Helps organize and manage files and
folders.

20. Open (free) Closed ($$$)
 Ubuntu  Windows 7
 Linex  Windows XP
 Windows Vista
 Snow Leopard

21. DESKTOP- Icons, Wallpaper, Task Bar,
System Tray
START MENU TASK BAR SYSTEM TRAY

22. Recently used programs
Files, Settings & Features
Expand All Programs
Shut down, Log Off

23. Expanded list of programs