Binary? :(

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HI All,

Is there any binary involved in the A+ as I researched a bit on the internet and it looks complicated to understand. I am also not very good at maths either! .

I understand there is binary in the MCSE?

Thanks

Andrew

 

It helps considerably to be moderately fluent in binary and hexadecimal, particularly when dealing with things like networking.

It isn't really hard - just requires some care.

Harry.

 

As far as the A+ is concerned you need to be able to convert binary into decimal and not the other way around (as far as i can remember). Hope this helps
Just remember 128, 64, 32, 16, 8, 4, 2, 1 and you will be fine

 

The numbers are divided into 2? What is the partwhere we need to remember??? Im confused...

 

I'll give it my best shot Andrew...!

Firstly,relax!!Binary is actually a very simple numbering system...

We are taught to count using the numbers 0 to 9

Binary uses no other numbers than 1 and 0

You want to know what the binary number 1101 represents..

Binary doesn't go 1,2,3,4 etc,it's presented here as 8,4,2,1 (in this example there are 4 binary digits...1101..

What this is showing is 1 x 8,1 x 4,0 x 2 and 1 x 1
= 1 1 0 1

Think of the 1's as ON and 0's as OFF
8 is on
4 is on
2 is off
1 is on
Now add all the on digits together and you have 8+4+0+1 =13

This gives you the value for 1101 as 13

So if you have a six digit binary number,say 110011 you have the following..1 x 32,1 x 16,0 x 8,0 x 4,1 x 2 and 1 x 1
Thats 32+16+0+0+2+1
So 110011=51

Count Binary from right to left,start with 1 as the rightmost digit and double each digit to it's left,so it would read like this..

256 128 64 32 16 8 4 2 1

Of course the amount of 1' and 0's could be infinite but you're going to be dealing with mainly small (ish) binary numbers,say 4,8 or 16 bits in length..but don't panic,it's really quite manageable when you get used to it.

Now I need a beer....

 

That is a brilliant Explanation of Binaries - Thank You...

 

I still dont get it malnomates but certainly seems good explanation.

Sorry for being a bit thick!

 

The document included in this thread may help you.

 

It will come to you Andrew,take your time to understand how it works and you will have a good start on your A+.

If you need further help then feel free to ask.

 

decimal, binary and hex...

http://www.codeproject.com/tips/binhex.asp

have fun!

 

Still seems confusing even looking at them sites .