This basic computer tutorial is written for those who do not know very much about computers. The purpose of this basic computer tutorial is to help the reader better understand how to use their computer more effectively and safely. It will help the reader understand:
What files and file types are. How to copy files. Where your files are stored. What the parts of your computer are. What an operating system is. What a computer program is.
Security and Performance
With the above basic information, this tutorial will explain methods that you can do to make your system more secure, keep your data safe by backing it up, and avoid most performance degredation caused to bad applications and SPAM.
How some file types can be used by third parties to gain control of your computer. How to modify your file view settings so you are not as easily fooled by e-mails containing viruses. How to prevent viruses and worms. How to reduce SPAM. How to back up your files. How to reduce or eliminate unwanted programs that could reduce your system performance. What to do if you receive a virus or worm. What to do if you receive an e-mail telling you that an e-mail you sent contained a virus.
This basic computer tutorial gives some basic information about hardware, operating systems, and programs in the first half to help the reader understand later information about files, e-mail and computer security practices. Depending on the reader's level of knowledge, some of the basic information may be skipped and the reader may refer to the terms page if they do not understand some of the terms.
Computer Data
To help understand computers it is best to first learn about computer data. Computer data is information required by the computer to be able to operate. It is used to:
Run programs - This is the actual executable program data that the computer will execute to run the program such as Microsoft Word. Store program or system configuration information. Store information that the computer user needs such as text files or other files that are associated with the program the computer user is running. A common example of a program the computer user is running is the Microsoft Office suite of products which include Microsoft Word, Microsoft Excel, and others. These programs are also known as applications.
Data Structure
Computer data is in what is called binary format. This means that it is always a 0 or a 1. It only has these two states and must be in one of them.
There are several fundamental data units which include:
Bit - A data unit which must be in one of the two binary states described above. It is the smallest data unit that exists. Byte - 8 bits of data which has a possible value from 0 to 255. Word - Two bytes or 16 bits of data with a possible unsigned value from 0 to 16535
No comments:
Post a Comment