Presentation on theme: "Instructor: Heman Lee www.aeromaniacs.com/class Introduction to Computers Jan 2009."— Presentation transcript:
Instructor: Heman Lee Introduction to Computers Jan 2009
This Course is for YOU! Basic components of the PC Speak Computerese (Geek Language) Use Mouse and Keyboard Navigate Windows OS Copy/Cut & Paste Safely turn off and on
The ENIAC First Computer Unveiled 1946 $500,000 17,468 Vacuum Tubes 8.5 X 3 X 80 feet Electronic Numerical Integrator & Computer
Altair Kit only Intel 8080 CPU 8 bit Altair BASIC
The IBM PC 1981
Apple Macintosh 1984
What is a Computer? Accepts/Inputs Data Processes Data Output Data Stores Data Computer
Hardware vs Software Physical part of the computer You can touch it Information or application programs used by the computer. You can not touch it.
The Operating System User Interface Host for applications Manages Hardware (ie Memory, Keyboard, Mouse) Interface to Computer Hardware
Computer Process Mouse CPU Keyboard Output Printer Monitor Input Windows
What is a personal computer? Monitor (LCD) System Unit Motherboard Hard Drive Floppy Drive CD-ROM/DVD Keyboard and Mouse Peripherals OS Software
CPU The Motherboard
Hard Drive C:
RAM Random Access Memory Tied to the CPU Main or primary storage Volatile Temporary (Volitile) Speed 400MHz (Speed of Light)
Hard Drive vs RAM RAM Access 20-60ns Transfer 2-6 G/s Access Time 20 – 40 ms Transfer Rate: KB/s
Removable Storage Floppy CD DVD Flash Portable HD
What is a Bit? 0 or 1 On or Off
A Byte In computer memory terms, the definition of a byte is a collection of eight bits = A = B
Storage Size How much data? UnitAbb.SizeEquivalent Bit1 bit Byte8 bits1 text character KilobyteK1,025 bytes1/2 page of text MegabyteMB1,048,576 bytesA novel GigabyteGB1,024 MegabytesAn encyclopedia A Picture file from a 5 M Pixel Camer ~ 2 MB 4 minutes of uncompressed video ~ 100 MB
Microsoft Windows OS Windows 98,XP,Vista,7 ? Desktop and icons Task bar Start button Built-in Programs (WordPad, Paint)
The Mouse Left Button Only Click Drag Double-Click
Mouse Alternative Trackball Touchpad Drawing Pad
QWERTY KEYBOARD Windows Key Application Key Text Editing Navigation NumLock On Numeric Keypad Help Key Refresh Print Screen to Clipboard Back when screens was green
Starting your computer Before starting your computer make sure you do not have a diskette in your A drive To start your computer just turn on the power switch or power bar (the computer will take a few minutes to go through its initialization procedure and you will eventually see your desktop and icons) If this does not happen check that your monitor (i.e. screen ) is on.
Starting your computer, cont. If computer was shut improperly, you may see a screen saying Windows would like to check your files for errors. It may then say it has found an error and ask if it should fix the error. You will probably want to tell it to fix the error and skip the undo disk and next time try to do a proper shutdown
How to power up you PC (Booting) 1. Turn on the monitor 2. Turn on any peripherals attached to you computer’s system unit. 3. Locate the power bottom on the computer’s system unit. 4. Press it once.
The Start Menu
Shutting down your computer Windows is very finicky about being shut down properly (do not just shut the power off) Move your cursor to start button and click Click on the arrow after the padlock icon. Click on Shutdown WAIT (Windows will go through an elaborate process of making sure all programs are shut down. You will then see a Windows screen and eventually a black screen with the words “It’s now safe to turn off your computer”)
Windows 7 Shutdown The Vista shutdown debacle is now fixed with Windows 7. Not only is it fixed, it is even better. You can custom what the button does with a simple right-click to launch the properties menu.
Restarting your computer Sometimes your computer will start doing funny things or your mouse will stop working Try ALT + CTL + DELETE If you see a program is not responding, you can try to highlight that program and press the “End Task” button. If nothing happens try ALT + CTL + DELETE again. This will restart your computer
Restarting your computer, cont. If your mouse is working you can click on Start button, click on arrow Click Restart and your computer will restart Useful if your computer hangs.
Mouse Pointing device that moves pointer or cursor Point and click (tip of the arrow is the point) Left and right buttons Start programs - 2 clicks Highlight text (click and drag) Practice makes perfect
Mouse Arrow Arrow Busy Text Double arrow Hand (Panning)
Scrolling pages Mouse Click on up and down arrows or Click on top of and below that darker box without touching the box or Click and drag the darker box Keyboard (make sure cursor is on page by clicking on empty space) Use arrow keys Use page up, page down, home and end
Opening Programs If on desktop as icon, double click on icon. If does not open press “Enter” key. Click on “Start” button, Move cursor up to “Programs”. After menu on the right appears move cursor over to menu and up or down to required program. Click on program If program has been minimized and appears on task bar, click on square representing program.
Closing programs Click on the X icon in the top right hand corner of the window or Put your cursor on File in menu bar and click, then move cursor down the drop-down menu to the bottom to word “Quit” or “Exit” or “Close”. Click on the word or Hold down the Alt key and press F4.
Minimize Window Maximize/Restore (Full Scrn/Not FS) Close Program Windows Controls
Title bar Menu bar Tool bar Status bar What is a Windows?
Using Menu Bars All Windows programs have a menu bar and everything you can do with that program will be available from one of the drop-down menus Place tip of the cursor on the word in Menu bar and click. Move cursor down drop-down menu to selection you want to perform and click. If item has an arrow pointing to the right move cursor to the right to see the submenu with more options.
Drop Down Menu With a sub-menu or cascading menu
List Box Look for the triangle to launch a List Box menu. Menu The menu appear in the direction of the arrow.
Buttons Works like a switch (on or off) Toggle New Help Button
Radio Buttons Select Only 1 choice
Check Box Buttons Multiply choices
Menu items common to most Windows programs File (includes New file, Open file, Save and Print) Edit (includes Find and Cut, Copy and Paste) View (allows you to change the look of screen by adding and subtracting bars like tool bar) Tool Bar (most programs but program specific) F1 Help used to give help in program’s functions and gives version number (About)
Cut/Copy and Paste (Drag) 1. Select the text or object. 2. Click on the selected area and drag it to another place in the document. 3. The mouse arrow will show a box next to it. 4. Let go of the mouse button.
Cut/Copy and Paste (Menu Bar Method) 1. Move cursor to Edit in Menu bar and select Copy or Cut ( is a Move) 2. Move the cursor to the area of the document or file where you would like to put the text and click. 3. Move cursor to Edit in Menu bar and select Paste
Using Tool Bars Icons which represent most frequently used actions. Look at the picture, it tells you what it does or mouse over it.
Cut, Copy & Paste 1. Drag and Drop No memorization require Require excellent mouse skills 2. On the Edit or Clipboard Menu No memorization require, just look for it on the menu. 3. Use Keyboard Shortcuts. Ctrl+C for Copy; Ctri+X for Cut Ctrl+V for Paste
Files & Folders Hard Drive Folder File
Continue to Windows XP/Vista or Windows 7 Basic Course