Safer Net Browsing

In this technical and modern era internet is most widely used by the people. But it is very difficult to use the internet safely. So, here in this blog i describe you how to safely use the internet.

Set up for fire fox:

1- If your computer setup has Firefox then firstly you need to install the WOT extension that is Web of Trust. You need to save this extension in your computer with Firefox browser. When you restart your browser you see a new window on your screen asking from you to accept  WOT End-User Software License Agreement. Here you need to click on Accept for activating the WOT extension.

2- By default WOT is located at the left side of the address bar, you can move this WOT to your suitable location according to you.

Now in your browser window you see the option to select the protection level that you want. Like Basic, Light and Parental Control level, you need to select one of them and after that click on next.

3- After selecting the protection level there is an option of create a WOT account. If you want to access all the features of WOT account you need to to create a WOT account and by doing this also rate the websites that you browse with green circle that is good. The green circle shows that the website is safe to use.

If you want to close this second window open on your screen just click on red cross button window is close and WOT works without any problem.

Above are the description of safer net browsing. By following the above steps you be able to use internet safely and make your computer safer from viruses that are almost comes through internet and crash your computer that will further require computer maintenance tools and repairing etc.

Functioning of keyboard of your computer

Computer is used for various purposes and keyboard plays an important role in it. Keyboard is works like an input device for your computer setup so its functioning plays an important role in the performance of computer and if keyboard not works then you can't work with your computer, hence in this way it plays an important role in computer maintenance. So, here in this blog functioning of keyboard is describe that will make you understand about how keyboard works?

Generally keyboards have 80 to 110 keys. A keyboard consist metallic plate, processor, and circuit board, these all are responsible for transferring the data from keyboard to computer system. There are two main types of keyboards used for computer. First is capacitive type and second is hard contact key type.

Capacitive Key Type Keyboard:

In this type of keyboards a capacitive key of metal plunger is fixed on the underside, this will help in activating the circuit flow. When a capacitive key is pressed, the metal plunger applies a gentle pressure to the circuit board. When we press the keys of keyboard it will be identified by the computer and transfer the information.

Hard Contact Key Type Keyboard:
A hard contact key is another type of keyboard. In this type of keyboard a metallic plate is attached. This metallic helps in connecting circuit board. When we press the keys of this type of keyboard then it pushes the metallic plate and finally touches the circuit plate of metallic portion and hence after completing the whole process information is transferred

Types of Hardware for Computer

Every computer system is made from different hardware component. Here in this blog I describe some hard ware component which is important for making a computer setup.

Types of hardware:

1-Motherboard:
Motherboard is one of the most important component for computer system. It used to connect all peripheral devices that is input/output devices together. Motherboard is used to run whole computer.

2-RAM:
RAM that is RANDOM ACCESS MEMORY is used to store all the data of your computer system. It is fitted inside the motherboard of your computer. RAM is most important part of your computer. Speed of your computer depends on RAM. More the RAM higher the speed. So, if you want to make a new computer setup you should install high amount of RAM in it.

3-Central Processing Unit:
The well known hardware component of your computer is CPU. Every one is aware from it. CPU is called the brain of the computer. It used to process all the data of your computer. It is used to perform arithmetical and logical operation of your computer with help of ALU unit which is in the CPU.

4-Hard Disk:
Hard disk is the part of your computer where files of your program is stored further process. Hard disk recovery is necessary to make your computer faster. It normally has 80 GB to 1 TB  of space to store the data. If you require more storage space then external hard disk are also available in market.

5-Power Supply Unit:
Power supply is the main source to turn on the computer system. In computer system it is  fitted inside the back of the cabinet of your computer.

Computer Memory: How it Works?

Every computer has its own memory and memory consist many devices which is used to store data in your computer. Storage is of two types one is temporary and second is permanent storage. In a computer setup each memory is made up of numbers of capacitors and transistors. In it capacitor is used to hold the data and transistor is used to read/write data which is held in capacitor.

Speed of computer depends on its memory. If memory is high computer works fine and if memory is less speed and performance of computer decreased. A computer consists of a physical memory built on the motherboard known as RAM and when this memory is not enough to store the data another computer memory is used known as virtual memory. This virtual memory is come up when physical memory of computer is full and it needs some more memory to store the data. This memory can be increased or decreased by system properties through control panel. By using this your computer runs faster. In memory data is written by CPU.

Address of each memory location is written in hexadecimal format. CPU performs the function of reading and writing of data from this memory location. In computer memory capacitor and transistors are managed in rows and columns form. The very common type of memory used by computer is RAM which stores the data at very high speed. It has an option to store data temporary. It is volatile in nature that is all the stored data is lost when power is off, this is the main disadvantage of RAM.