A computer hardware platform abstraction - part.1

intro

Nowdays every electronic computer is based on  Boole Algebra and Sequential Logic,So my post will be based on those too.After introducing BooleAlegebra and Sequential Logic,I will specify a simple architecture of modern electronic computer. I emphsise electric because I may do some reseach about quantum computer too inrt  the future.

 

Boole Alegebra

In the very low level,All the  electronic computer can do is manipulating high/low voltage.But there is a smart person thought out a solution of  expressing many computations based on binary number.And all those computation formula can be expressed by three operator: AND,OR,NOT. 

Once we know that,We can build a 'chip'(or gate)  to do specificed logical operation.

Then the Arithmetic Logic Unit(ALU) will be born,Which is well designed calculator.Mathematically saying,it is a function implemented in real world.

 

Sequential Logic

If we build a system,we will face a synchronization problem and state saving issues.

That is to say,the inputs of ALU may not be arrived in time,and there is a chips called Flip-Flops needs to do operation in time sequece.so there is a oscillator offer a clock message to the whole computer system.

Once we can achive time sequence operation,we can use this function to build a memory module : registers and Random Access Memory.

Machine Language

After all things build up, we need a language to command processor(ALU plus control/branching operations) and registers manipulate meomory.Then we can make a rule ,which is much more readable and writable .The detail in this topic ,i will pass and make anthoer post to write it.

next part i am going to write about von neumann architecture.