SESSION 3 The third part of a lecture 3.pptx
- 1. SESSION 3: BASIC COMPUTER FUNCTIONS
- 3. Performing computer connections and start up Place the computer on a flat surface near a grounded wall outlet. Your computer is designed to be placed on the floor to conserve desk space, but can place it on any stable, flat surface. Before you plug your computer into a wall socket, carefully read all the setup instruction in this user manual. Step 1:- Make sure the voltage switch on the back of the computer is set for the kind of voltage system to which you will be connecting. Step 2:- Plug the socket end of the computer’s power cord into the recessed power socket. Step 3:- Plug the other end of the power cord into a three-hole grounded outlet or power strip. Step 4:-Place the monitor near the computer. Step 5:-Connect the monitor power cord to the monitor. Step 6:- Plug the power cord into a grounded electrical socket or the back of the computer.
- 4. Step 7:-Attach the monitor cable to the monitor, and then attach the monitor cable to the monitor port on the back panel of the computer. Step 8:- Connect the mouse and the keyboard to the computer. Step 9:- Turn on the computer and the monitor by press the power button. Step 10: The computer is working
- 5. Graphical User Interface (GUI) Graphical user interface is a form of user interface that allows users to interact with electronic devices through graphical icons and visual indicators such as secondary notation, instead of text-based user interface, typed command labels or text navigation. Also, a graphical user interface (GUI) is a pictorial interface to a program. A good GUI can make programs easier to use by providing them with a consistent appearance and with intuitive controls like pushbuttons, list boxes, sliders, menus, and so forth. The GUI should behave in an understandable and predictable manner, so that a user knows what to expect when he or she performs an action. For example, when a mouse click occurs on a pushbutton, the GUI should initiate the action described on the label of the button.
- 6. Computer file Is an item that contains information for example, text or images or music When opened, a file can look very much like a text document or a picture that you might find on someone's desk or in a filing cabinet On a computer, files are represented with icons; this makes it easy to recognize a type of file by looking at its icon A file is the common storage unit in the computer All program and data are contained in a file Computer reads and writes file File extension enable user to recognize file. It normally have three letter sequence
- 7. Some of the more common file extensions are as follows: Microsoft Word.doc Microsoft Excel.xls Microsoft PowerPoint.ppt Images .gif or .jpg Video.mov or .mpg Sound or Audio .mp3 or .wav
- 8. Performing file management A file management in a computer can be done through windows explorer or My Computer. Windows Explorer displays the hierarchical list of files, folders, and storage drives (both fixed and removable) on your computer. It also list any network drives that have been mapped to as a drive letters on your computer. Windows explorer can be used to copy, move, rename, and search for files and folders. For example, to copy a file, you can open a folder that contains the desired file to be copied or moved and then just drag and drop the file to target folder or drive. Please see the figure 3.1.below
- 10. When files or folders are deleted from hard disk, windows places them in the recycle bin, from where they can be retrieved, until the recycle bin is made empty. Files or folders deleted from a removable storage media such as network drive are permanently deleted and not sent to the recycle bin.
- 11. Transferring file from computer to removable disks Copying or moving a file or folder from computer to removable disk its involve the following procedure:- Insert or plug the removable disk/ Flash or external drive in your computer. Then, Click on Start, and the My Computer. Click the file or folder to be copied, if more than one file or folder can be copied at a time. To select more than one consecutive files or folders, click the first file or folder, press and hold down SHIFT key and then click the files or folders. And then select COPY . Then find the name of removable flash or external drive, then OPEN it and PASTE those file or folder in your Flash drive.
- 12. Key Points (5 minutes) Place the computer on a flat surface near a grounded wall outlet Graphical user interface is a form of user interface that allows users to interact with electronic devices through graphical icons and visual indicators A file management in a computer can be done through windows explorer or My Computer Session Evaluation (5 minutes) What are steps in computer connections and start up? What is graphical user interface (GUI)? What is Computer file? How can you manage file in the computer? How can you transfer file from computer to removable disks
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