Into Duct Ion to Computers

8/8/2019 Into Duct Ion to Computers

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SYSTEM COMPONENTS

CPU/PROCESSOR The CPU refers to the microprocessor

chip. Sometimes the Tower is called the

CPU. Its speed is measured in Megahertz

(MHZ) (Millions of cycles per second) or

Gigahertz (GHZ) Billions of cycles per

second. (A cycle is the time required for the CPU to execute

an instruction step).


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SYSTEM COMPONENTS

Ram Random Access Memory Ram is the memory used by the computer

to run programs.

The amount of Ram available willdetermine how fast a program will run andhow many windows can be open at onetime.

Ram memory is considered Volatilebecause it disappears when the power isturned off.


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SYSTEM COMPONENTS

Hard Drive The Hard Drive is the computers main,

long term storage.

It is referred to as non-volatile storage,because it does not disappear when the

power is turned off.

The size of the Hard Drive is measured in

Gigabytes. (Billions of Bytes).


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RAM VERSUS HARD DRIVE

If we use the analogy

of a desk: Then the

work we are doing on

the desk top would beusing the RAM and

the work we store in

the file drawers would

be on the HARDDRIVE.


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SYSTEM COMPONENTS

Mother Board (This is where most of the

electronics is located).


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SYSTEM COMPONENTS

Case (Tower,Chassis,Box)


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SYSTEM COMPONENTS

Modem (Modulator

Demodulator). (Used for internet access

with phone line).


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SYSTEM COMPONENTS

Power Supply

250 500 Watts

DO NOT OPEN (This is the power source

that makes everything go).


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SYSTEM COMPONENTS

Audio Card This is the voice of your

system).


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SYSTEM COMPONENTS

Floppy Drive

1.44 MB (This item is fast becoming

obsolete).


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SYSTEM COMPONENTS

Network Card (Used to connect to high

speed internet access e.g.

Cable or DSL lines).


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SYSTEM COMPONENTS

Tape Drive Can store

Gigabytes of data.


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SYSTEM COMPONENTS

Video Card (Provides visual images to

the monitor. Also used in

computer games, to provide

additional memory for visualeffects).


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PERIPHERALS

Monitors

CRT Vs LCD


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PERIPHERALS

Printers (Might be Ink Jet, Bubble Jet,

Laser or whatever the

manufacturers invent

tomorrow).


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PERIPHERALS

Video Cameras

(Also called

webcams)


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POWER PROTECTION

Uninterruptible Power

Supply

(UPS) 280 VA 400

VA

(Essentially a battery

back-up in case of a

power failure)


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KEYBOARD

The Keyboard

(This is the primary

input device)


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KEYBOARD

Alphanumeric Keys


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KEYBOARD

Numeric Keypad


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KEYBOARD

Enter (Return) Key


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KEYBOARD

Spacebar


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KEYBOARD

Modifier keys:

CTRL, ALT, SHIFT


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KEYBOARD

State keys: Caps,

Scroll, Numlock


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KEYBOARD

Windows keys


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MOUSE

Holding the mouse

Grip between thumb

and ring finger

(Right handed grip

shown, Lefties use

other hand)


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MOUSE

Mouse Pointer


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MOUSE

Left Clicking


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MOUSE

Right clicking


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MOUSE

Double clicking

(Use the left side,

Click twice)


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MOUSE

Click and drag


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MOUSE

Scroll wheel and

optional buttons


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SOFTWARE

Operating systems

Applications Data


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OPERATING SYSTEMS

MS-DOS

Windows 95,98,Me

Windows NT,

2000,XP

Linux


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APPLICATIONS

MS Word

(Your basic Word

Processor)


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APPLICATIONS

MS Excel

Your basic Spread Sheet)


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APPLICATIONS

MS Power Point

(For sales

presentations)


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APPLICATIONS

MS Outlook

(Your desktop Personal

Information Manager,

(PIM))


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APPLICATIONS

MS Internet

Explorer

(Your internet

Browser)


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APPLICATIONS

Windows Calculator

(Your basic

calculator, alsoavailable is a

scientific calculator)


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APPLICATIONS

WordPerfect Adobe Acrobat

Lotus 1-2-3 Photoshop

QuickBooks Notepad CorelDraw WinZip

HyperCam Media Player

Photo Paint StarCraft ETC. ETC.ETC. ETC. Ad Infinitum


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DATA

Letters written using a word processor like

MS WORD.

Spread sheets designed in EXCEL. Presentations created in Power Point

Music on a CD.

Photos from your digital camera


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COMPUTER CAVEATS

Beverages in open

containers are EVIL.


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COMPUTER CAVEATS

Magnets

(They destroy Data

on floppy drives and

hard drives)


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COMPUTER CAVEATS

Laser Printers and Power.

Keep PC off the floor.

When in doubt Reboot.


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COMPUTER CAVEATS

Save your work often.


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COMPUTER CAVEATS

Power Strips

Use the Power

buttons on the PC

and peripherals.


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COMPUTER CAVEATS

Dont eject a floppy

when the light is on.


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COMPUTER CAVEATS

Keep floppies out of

sunlight.


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COMPUTER CAVEATS

Proper handling of

CDs

OK to wash CDs in

mild soapy water orget a CD cleaner

(inexpensive)


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COMPUTER CAVEATS

Dont push the CD

tray in use the

button.


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COMPUTER CAVEATS

Dust Kills

Its a good idea to

blow the dust out of

your computerregularly.


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COMPUTER CAVEATS

STATIC KILLS!

Get yourself an anti

static strip or mat.


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TIME FOR A STRETCH BREAK

TIME TO GET UP AND STRETCH

CLEAN YOUR GLASSES

GO POTTY IF YOU HAVE THE URGE LETS TAKE A TEN MINUTE BREAK


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AN INTRODUCTION to

WINDOWS XP

This is the operating system most

of us will be using


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FILES AND FOLDERS

Keyboard Word Access Excel PowerPoint


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command

Ctrl-A Select entiredocument

Select all Select all Select all

Ctrl-B Bold Bold Bold Bold

Ctrl-C or F3 Copy Copy Copy Copy

Ctrl-F n/a Find Find n/a

Ctrl-G Go to n/a n/a n/a

Ctrl-H n/a Replace text n/a n/a

Ctrl-I Italics n/a n/a Italics

Ctrl-M n/a n/a Format anumber

Add (create)slide

Ctrl-N Newdocument

Newdocument

Newdocument

Newpresentation

Alt-N n/a Create a newobject

n/a n/a

Ctrl-O Open Open Open Open

Ctrl-P Print Print Print Print

Ctrl-Q Quit Quit Quit Quit

Ctrl-R n/a New record Fill Right n/a

Ctrl-TAB Save as Display Page Save as n/a

Ctrl-S Save Save Query Save Save

Ctrl-U Underline n/a Underline Underline Text

Ctrl-V Paste Paste Paste Paste text

Ctrl-X Cut Cut Cut Cut

Ctrl-Z Undo Undo Undo Undo


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Keyboard

command

Word Access Excel PowerPoint

F1 Help Help Help Help

F7 Spell/grammar check

Spell check Spell check Spell check

Ctrl-[ n/a n/a n/a Decrease fontsize

Ctrl-] n/a n/a n/a Increase font size


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Shortcuts when selecting text

Selection Task Shortcut

Select adjacent text Click and drag over text

Select a word Double clickon the word

Select a line Triple clickon the lineSelect a paragraph Click 4 times in the paragraph

Select from the insertion point to the

beginning or end of a paragraph

Press Shift-Option-Up arrow or

Shift Option-Down arrow

Select an extended section Click at one end of the section,

then Shift-clickat the other end

Select a whole document Ctrl-A ortriple clickin selection

area

Select from the insertion point to the

beginning or end of a document

Press Shift-Ctrl-Home orShift-

Ctrl-End


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THE WIMP INTERFACE

WINDOWS ICONS

MENUS

POINTERS


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WINDOWS


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ICONS


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MENUS


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POINTERS (CURSORS)

I-beam cursor

(which follows the roll of the mouse)

Insertion point cursor

F letcher

(Which flashes on and off, and is positioned

using the I-beam cursor and a click of themouse button)


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BREAK POINT

Lets get some hands on experience

Find the Windows key.

Bottom row second key from the left side.

Press once, (this is the same as left

clicking on the start button).

Bring the cursor arrow over the All Programs

Arrow head. Notice how the program files are displayed.


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FIND MICROSOFT WORD(LEFT CLICK)

Microsoft Word.lnk


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Microsoft word

FIND EXCEL


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FIND EXCEL

LEFT CLICK

Microsoft Excel.lnk


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MICROSOFT EXCEL


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FIND POWERPOINT

Microsoft PowerPoint.lnk


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POWERPOINT


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Into Duct Ion to Computers