Lecture 9

Components of the Windows Desktop

ICONS – are pictures that represent programs, files, folder and other items.

DESKTOP – This is the area that takes up  the entire background of the csreen.

MOUSE POINTER – The on-screen pointer (usually an arrow) that you use to select items and choose commands.

Lecture 2

Genealogy of Computer

First Generation

The first Generation Computers such as the UNIVAC I were a vacuum tubes machine. The machine user in the first generation was not commercial instead the Universities and some Research Institution use them. First Generation computers were bulky, expensive and not reliable. The only programming language that this computer use was a machine language, which is difficult to use. Machines that are categorized in the first generation are ENIAC, UNIVAC, EDVAC, ASCC, this machine uses a vacuum tubes technology. The fault of the vacuum tubes are it was not a long live component, it requires to much electricity, it was bulky, and it was so very expensive.

Second Grading Lecture 1

Getting Started in Word

When you open the Word application, you’re faced with a blank slate—a big white space, awaiting your text. This white area (also known as the document window) is surrounded by tools. You’ll find toolbars, menus, a task pane, a status bar, and lots of tools and features to empower you as you write your letter, memo, report—whatever it is you’re creating.

The blank page also contains a cursor, also known as an insertion point. Whenever the document is active, the cursor will be blinking, waiting for you to type. The fact that the cursor greets you when you open a new Word document is further proof that you don’t need to know much about Word to create a document. Just start typing at the cursor, and Word’s default settings for text handling and formatting will do much of the rest.

Working with Word Wrap

As you type your text, it’s important that you really just type. Don’t worry about your margins or press ENTER in anticipation of running into the right margin. Word will automatically flow your text from one line to the next, using a feature called word wrap. Word wrap only works if you let it.

Fourth Year: Lecture 2

ELEMENTS OF A WEB SITE

Just like other windows, any web site has a title bar, a menu bar, and a toolbar. The title bar shows the current site being used while the menu bar shows available list command options like file, edit, view, favorites, tools and help. By clicking the Go button, one can go to the web site that appears in the address bar. On the right side of the window, the scroll bar appears where you can scroll up and down on the page.

Third Year: Lecture 5

Mouse Operation

POINT – This means that without pressing any mouse buttons, you move the mouse pointer or cursor to a desired screen location.

CLICK – Point the mouse pointer at the object you want to select, and then quickly press and release the left mouse button. If the object is an icon or window, it becomes highlighted.

Third Year: 4th Lecture

The System Unit Parts and Functions

Power Supply – Regulates the flow of electric current to the motherboard and drives

Fourth Year: Lecture 1

THE INTERNET

The Internet, also called the net, is an electronic communication device. It is one of the largest networks that link millions or trillions of computers all over the world. Internet is simply there and no one knows exactly how many computers are connected to the Internet.

Lecture 3

ACCESSING AND NAVIGATING THE OPERATION SYSTEM FEATURES AND FUNCTIONS

The operating system is the core software component of your computer. It performs many functions and is, in very basic terms, an interface between your computer and the outside world. The operating system provides an interface to these parts using what is referred to as “drivers”. This is why sometimes when you install a new printer or other piece of hardware, your system will ask you to install more software called a driver.

Lecture 2

Definition of Computer

Computer – an electronic device designed to manipulate data for useful information to be generated.

Computer comes from the word compute.

The computer is an EDP (Electronic data processing) machine

Lecture 1

History of Computers

Ancient times – no computers or calculators yet.

Year 500 B.C. – the Chinese invented the ABACUS considered to be the first computer device, which can perform simple addition and subtraction operations.

1617 – John Napier, a Scottish mathematician, invented the Napier’s Bone – A table of logarithm made of ivory. This reduced the complicated multiplication and division to simple addition and subtraction.