OUTLINE Computer Hardware Operating systems Terms Disk capacities Viruses Applications and Documents Installation/reinstallation Internet Applications
Computer Hardware Case Keyboard/mouse Power switch Network card Reset switch Modem Hard drive Sound card Floppy Video card CD/DVD RAM Serial ports Motherboard Parallel port Fan USB port Cables
The basic system including keyboard,mouse and monitor.
CablingFor items in or attachedto a system to workproperly they must besecurely connected.
Operating systems All computer systems have an operating system. Currently, there are three dominate typical user operating systems. Macintosh OS, Microsoft Windows OS, Linux.
Terms A: Floppy disk C: Local disk D: Local disk (partition) RAM = Random Access Memory. The thinking space available to a computer to use while performing operations. The space is emptied out when the computer is turned off. DIRECTORY = An organizational structure on disks to file management easier. Directories also become a local region for the computer to hunt for other files related to the current file. DOCUMENT = A file created using an application. The file is only useful using the application that created it or a similar application that can convert it. APPLICATION = A program that allows a computer to perform a certain function.
Disk capacities Floppy: 1.4 MB Hard disk: 20 GB – 160 GB CD 700 - 800 MB DVD 4.7 GB 17 GB1 KILOBYTE = 1000 BYTE1 MEGABYTE = 1000 KB1 GIGABYTE = 1000 MB
Identify and use icons,windows, menus Point, click, double-click, drag & drop Minimize and maximize a window Use pull-down menus Select, open, and move an icon Select, open, move, and close a window Resize a window Scroll a window Activate and de-activate a window Start an application and create a document
Name, save, retrieve, revise adocument Name a document (!) Save a document Retrieve a document from floppy disk Retrieve a document from hard disk Re-name a document Edit and re-save a document Print a document Create and name folders Save, open, and place documents inside folders
Applications Open and work with more than one application at a time To switch between them for Windows: click on the application at the "TASKBAR" down on the screen Alt &TAB button
Install/reinstall and update systemsoftware and drivers
Internet ApplicationsBROWSERS Netscape Internet Explorer http: Hyper Text Transfer Protocol edu: Education (gov, org, com, ...) http://www.math.metu.edu.tr
FTP (File Transfer Protocol) The simplest and most secure way to exchange files over the Internet. FTP Client is the software that is designed to transfer files back-and-forth between two computers over the Internet. It needs to be installed on the computer and can only be used with a live connection to the Internet. (Browsers, WS-Ftp, SSH, Cute-Ftp,...) PC ARF
Viruses Viruses are programs that reproduce themselves into the files of your computer Anti-virus software and automatic update Mcafee Virus Scan Configuration of Automatic Mcafee Virus Update via FTP http://www.math.metu.edu.tr/department/doc/virus/virus_update.html Current security patches applied to operating system and applications. Do not open any unexpected attachments that are e-mailed to you. (Particularly “.exe” files.)
REFERENCES Computer Fundamentals for Teachers Basic Computer Operation and Troubleshooting FTP New User Guide