Transcript Chapter 1 - Cerritos College

XP
Chapter 1
Getting Started
Practical PC, 3e
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Getting Started
• In this Chapter, you will learn:
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How to power up the computer
How to start the computer
What to do if prompted for a password
How to use the mouse and keyboard
How to turn the computer off
About different types of hardware
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Where’s the power switch?
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• Your PC (Personal Computer) is a system unit
consisting of:
– Physical Hardware
• A brain or microprocessor to carry out commands
• RAM (Random Access Memory) for temporary storage
• Storage media (hard disk, floppy disk, CD, etc.)
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Where’s the power switch?
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A Typical PC System
Tower unit
housing the main
computer
Monitor
Tape & Disk drives
Monitor Power
Switch
Power Switch
Mouse
Speakers
Keyboard
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Where’s the power switch?
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• Your PC is a system unit consisting of (cont):
– Software programs to perform tasks
• An operating system (I.e. Microsoft Windows)
• Application software (such as Word or Excel)
• A computer is turned on by a power switch on the
system unit
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Starting the PC
• Booting up your PC
– Make sure the floppy drive is empty and turn the PC on
to allow the PC to “boot up.”
– The operating system is stored on the hard drive and
normally boots from there.
– The PC boot process will also check that the systems
components are functioning correctly.
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Starting the PC
• Booting up your PC (cont)
– If you leave a disk in the floppy drive by mistake, the
system will stop the boot process with a “non-system
disk” message.
– If you have problems with the operating system stored
on the hard drive, you can boot the PC from the floppy
drive using a system disk to correct the problem.
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Starting the PC
The Windows Desktop after a successful boot of the PC
Windows Desktop
Start Button
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Task Bar
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Using a User Id and Password
• Booting up your PC (cont)
– Your PC may be an individual (stand alone) PC or it
may be connected to others on a network.
– If your PC is on a network, you may be asked to
identify yourself with a user ID and password.
• A user ID identifies you individually
• A password provides security and ensures that only authorized
people access the network.
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The Mouse and the Keyboard
• You will use both a mouse and a keyboard to input
information to the PC.
• Normally the keyboard is used to enter text, but
can also be used to select tasks.
• The mouse allows you to point at and select
objects.
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The Mouse and the Keyboard
A Two-button Mouse
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The Mouse and the Keyboard
A Standard Keyboard
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Turning the PC off
• Shutting Down the PC
– Your PC may go into sleep mode if unused for a while, but it is still
on.
– To properly turn off the computer, use the Shut Down Windows
command.
– Turning off the power abruptly doesn’t allow Windows to save
settings and close down properly.
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Turning the PC off
• Shutting Down the PC (cont)
– Shutting down properly saves your work and cleans out temporary
“scratchpad” areas.
– If the computer freezes, pressing the Ctrl, Alt and Del keys at the
same time, may release it and allow for proper shutdown.
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Turning the PC off
The Shut down command dialog box
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Hardware Types
• There are several configurations you can select for
your PC The basic types to consider are:
– A Desktop Computer which can be bought in either
traditional desktop or in a tower style
• Less expensive, but not easy to move
• Most computing power per dollar
• Available for about $1000
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Hardware Types
A traditional desktop configuration
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Hardware Types
A tower style configuration
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Hardware Types
• There are several PC configurations (cont):
– A Notebook (laptop) Computer
• More expensive, but portable
• Uses an LCD (liquid crystal display) screen instead of a
monitor
• Limited number of internal devices
• Can use PC cards to connect to phone lines or a network
• Costs about $1800 with about the same power as the desktop
model
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Hardware Types
A Notebook computer illustrating it’s major components
LCD Screen
Internal
Processor &
Hard drive
AC Adapter
CD-Rom
Drive
PCMCIA port and card
Touch Pad
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Hardware Types
• There are several PC configurations (cont):
– A PDA (personal digital assistant)
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Basic level computer, but hand held
No hard drive, software hard-wired
Links to a PC for data exchange
Uses simplified operating system (Palm OS or Windows CE)
Costs about $300
Documents stored in flash memory (no constant power source)
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Hardware Types
A PDA docked to the main PC for data exchange
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Unpacking & Setting up your PC
• When you buy a new PC, you need to be able to:
– Identify each of the hardware components
– Connect each of the components to the correct port
– Connect the components to power using a surge strip
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Unpacking & Setting up your PC
The back of your PC and the different types of ports
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What do you think?
Computer “haves” and “have-nots”
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Do you own a computer?
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Do you believe that not having a computer at home is likely to
limit a person’s chances to improve his or her economic status?
3.
Do you favor spending tax dollars to make computers available in
public libraries?
4.
Would you favor allowing college students to spend their
financial aid money on computers?
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Chapter Summary
• You should now be able to:
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Unpack and set up your PC
Find the various hardware components
Boot up your PC system
Identify the different types of systems
Use a user ID and password
Know when to use a mouse and a keyboard
Shut down your PC
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