The best way to sit at you're computer

If you work at a computer, the keyboard should be in front of the screen

Adjust your seat to place the keyboard roughly at elbow height while allowing your feet to rest firmly on the floor.

Your forearms should be reasonably horizontal, and you should be looking slightly downward.

The seat should support your thighs, but the front edge should not dig into them. Adjust the backrest to support the small of your back. If your chair does not provide sufficient lumbar support, try placing one or two cushions behind the small of your back.

Looking down and sideways to copy from documents can lead to neck and back strain. Try using a copy holder to hold the documents beside the screen.

 

Do not do

 

summary of communication process

Communication Process:The process of communication involves the combination of these very essential elements, components for the achievement of goals and proper activation. There are many factors which influence the communication process, all of which impact each other in a variety of ways. This model shows how the most important factors function in what would be a snapshot of a static instance of communication.
1-Sender: It is the originator of the idea or message. It is the place or the person from where the message is communicated or sent. The source initiates the message by encoding it into symbols (words) and signs (facial expressions, tone of voice, etc). It may also be known as sender who may be an individual or a group. 2-Encoding: Encoding involves the selection of mode of communication. The encoder expresses his message through gestures, sounds, written words and signs. Encoding requires clarity of purpose and effective medium of expression. For example, a telegram differently worded from a letter. . 3-Message: The message is the actual physical product from which the source encodes. When we speak, the speech is the message. When we write, the writing is the message. When we gesture, the movement of our arms and the expression of our face are the message. 4-Channel: The channel is the medium through which the message travels. It is selected by the source how to use a formal channel. Formal channels are used to transmit messages that relate to personal activities of the people.

Internet

 What Is the Internet?

–A network of networks, joining many government, university and private computers together and providing an infrastructure for the use of E-mail, bulletin boards, file archives, hypertext documents, databases and other computational resources

–The vast collection of computer networks which form and act as a single huge network for transport of data and messages across distances which can be anywhere from the same office to anywhere in the world.

What is the Internet?

The largest network of networks in the world.

Uses TCP/IP protocols and packet switching.

Runs on any communications substrate.

Brief History of the Internet

–1968 - DARPA (Defense Advanced Research Projects Agency) contracts with BBN (Bolt, Beranek & Newman) to create ARPAnet

–1970 - First five nodes:

–UCLA

–Stanford

–UC Santa Barbara

–U of Utah, and

–BBN

–1974 - TCP specification by Vint Cerf

–1984 – On January 1, the Internet with its 1000 hosts converts en masse to using TCP/IP for its messaging.

This is powerpoint about Intrnet:

http://hero-share.com/download/10357147/2002_0918_Internet_History_and_Growth.ppt.html 

Computer Security

http://hero-share.com/download/10346135/CIS326week1lesson1.ppt.html

colors

http://hero-share.com/download/10288009/COLORS.ppt.html

colors

http://hero-share.com/download/10287853/COLORS.ppt.html

Information technology

Information Technology
Definition of information technology:

Is a software and hardware, telecommunications, database management and operation of information technology used in other systems, the information specified Balhawwasb. I'll explain in a later article information systems and types of administrative as well as the automation of administrative limits of my knowledge through my humble at the National Institute of Public Administration and through Mutalati in this field
And the growing role and importance of information technology in the circuit

  the increasing influence of knowledge and information in modern societies
  increasing influence and powers of employees and managers in the departments of modern
  the development of telecommunications networks and microprocessor
the emergence of new information systems based on the use of computing and electronic communication networks developed
  high demand for information, which was turned into an important strategic resource
  The role of information and knowledge in making today's competitive advantage has become a competitive advantage in terms of making the human mind and its capacity and not a gift of nature as it was previously