BASIC COMPUTER OPERATION

Gülçin Sağdıçoğlu Celep

gulcin@metu.edu.tr

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

The basic system including keyboard, mouse and monitor.

What is in the box? Motherboard

Typical parts of a motherboard.

ABIT SE6

Cabling

For items in or attachedto a system to work properly they must be securely 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 GB

1 KILOBYTE = 1000 BYTE 1 MEGABYTE = 1000 KB1 GIGABYTE = 1000 MB

Floppies, CDs

Backup

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

Install/reinstall and update system software and drivers

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.)

REFERENCES Computer Fundamentals for Teachers

Basic Computer Operation and Troubleshooting

FTP New User Guide