BASIC COMPUTER OPERATION
Gülçin Sağdıçoğlu Celep
Department of MathematicsMETU2003
OUTLINE Computer Hardware Operating systems Terms Disk capacities Viruses Applications and Documents Installation/reinstallation Internet Applications
Computer Hardware Case Power switch Reset switch Hard drive Floppy CD/DVD Serial ports Parallel port USB port
Keyboard/mouse Network card Modem Sound card Video card RAM Motherboard Fan Cables
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 GB
1 KILOBYTE = 1000 BYTE 1 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 a document
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
Internet ApplicationsBROWSERS
Netscape
Internet Explorer
http://www.math.metu.edu.tr
http: Hyper Text Transfer Protocoledu: Education (gov, org, com, ...)
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.)
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