BASIC COMPUTER OPERATION Gülçin Sağdıçoğlu Celep Department of Mathematics METU 2003

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 attached to 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 MB  DVD4.7 GB 17 GB 1 KILOBYTE = 1000 BYTE 1 MEGABYTE = 1000 KB 1 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 Applications BROWSERS Netscape Internet Explorer http: Hyper Text Transfer Protocol edu: 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  Current security patches applied to operating system and applications.  Do not open any unexpected attachments that are ed to you. (Particularly “.exe” files.)

REFERENCES  Computer Fundamentals for Teachers Computer Fundamentals for Teachers  Basic Computer Operation and Troubleshooting Basic Computer Operation and Troubleshooting  FTP New User Guide FTP New User Guide