• Computers run applications Computers run applications (software/programs)(software/programs)
• Computers store files in foldersComputers store files in folders• Types of FilesTypes of Files
– Documents (MS Word, Word Perfect)Documents (MS Word, Word Perfect)– Images (photos, drawings)Images (photos, drawings)– VideosVideos– SpreadsheetsSpreadsheets– DatabasesDatabases– Web pagesWeb pages
Types of ComputersTypes of Computers
Personal ComputersOperating Systems Types
Windows (PC) Laptop
Mac (Apple) Desktop
Servers•Google•Email•CNN•Other Examples
Types of ComputersTypes of Computers
Personal ComputersOperating Systems Types
Windows (PC) Laptop
Mac (Apple) Desktop
Servers•Google•Email•CNN•Other Examples
A server is a computer whose
files and/or applications are
open to be accessed over the
Internet.
Components of a ComputerComponents of a Computer
• Hard Drive (1 TB is common today)Hard Drive (1 TB is common today)• Central Processing Unit (CPU)Central Processing Unit (CPU)
– Random Access Memory (RAM, 4-8 GB is common)Random Access Memory (RAM, 4-8 GB is common)– Read Only Memory (ROM)Read Only Memory (ROM)
• Internet Service ProvidersInternet Service Providers– Telephone, Cable Telephone, Cable
Where Stuff Goes on Your Where Stuff Goes on Your ComputerComputer
• Files go in FoldersFiles go in Folders• Hard Drive (usually C:\)Hard Drive (usually C:\)• My DocumentsMy Documents
– Let’s create a folder in My DocumentsLet’s create a folder in My Documents• File PathsFile Paths• File NamesFile Names• File Extensions File Extensions
– .doc, .docx, .jpg, .xls, .xlsx, .pdf.doc, .docx, .jpg, .xls, .xlsx, .pdf• Open MS WordOpen MS Word
– Let’s save a fileLet’s save a file• Go to a Go to a http://marsrovers.jpl.nasa.govhttp://marsrovers.jpl.nasa.gov
– Let’s save a picture from this screen to My Pictures.Let’s save a picture from this screen to My Pictures.
DirectoriesDirectories• Directories are foldersDirectories are folders
• Each storage device has a directoryEach storage device has a directory
Showing File ExtensionsShowing File Extensions
• Why do this?Why do this?– In order to see the type of In order to see the type of
filefile
– To be able to fix problemsTo be able to fix problems
• How to do this:How to do this:– Open My DocumentsOpen My Documents
– ToolsTools
– Uncheck hide extensions Uncheck hide extensions for known file typesfor known file types
– Click Apply to all foldersClick Apply to all folders
DownloadingDownloading
• Downloading means transferring files from Downloading means transferring files from a server to your computer.a server to your computer.
• When you retrieve email, you are When you retrieve email, you are downloading files from an email server to downloading files from an email server to your computer.your computer.
• When you visit a website, you download When you visit a website, you download the webpage from the server to your the webpage from the server to your computer.computer.
Downloading a PDFDownloading a PDF
• PDF stands for Portable Document FormatPDF stands for Portable Document Format• It’s a type of document that you can open and It’s a type of document that you can open and
read for free using Acrobat Reader.read for free using Acrobat Reader.• Let’s get this PDF and save it:Let’s get this PDF and save it:
– Seven Things to Consider Before Buying a Seven Things to Consider Before Buying a Tablet PCTablet PC
• Create a folder in My Documents called Create a folder in My Documents called “Tech Savvy” and save the file there.“Tech Savvy” and save the file there.
• You can print PDFs.You can print PDFs.• You can send a PDF to someone else.You can send a PDF to someone else.
UploadingUploading
• Uploading means transferring files from Uploading means transferring files from your computer to a server.your computer to a server.
• When you send an email you are When you send an email you are uploading a file from your computer to an uploading a file from your computer to an email server.email server.
• When you fill out an online form you When you fill out an online form you upload data from your computer to a upload data from your computer to a server.server.
Sending Files to PeopleSending Files to People
• You can attach a file to an email and send You can attach a file to an email and send it.it.
• You can transfer a file using Skype.You can transfer a file using Skype.
• You can load a file to Facebook.You can load a file to Facebook.
• You can put a file on a storage device You can put a file on a storage device (USB drive, CDRW, DVDRW) and give it (USB drive, CDRW, DVDRW) and give it them.them.
#1 Solution to Most Computer #1 Solution to Most Computer Problems Problems
• Reboot (restart) the computer.Reboot (restart) the computer.
2.2.Check that everything is plugged in.Check that everything is plugged in.
Protecting Your ComputerProtecting Your Computer
• Most risks are associated with Internet and Most risks are associated with Internet and Email.Email.
• Don’t visit websites you don’t know.Don’t visit websites you don’t know.• Don’t open emails you are not expecting.Don’t open emails you are not expecting.• Risks:Risks:
