整理的存储器原理（国外英文资料）.docVIP

整理的存储器原理（国外英文资料） The basic working principle of memory Memory construction Memory is where the data is stored. Level of it is used to store data, that is, store it in fact is the high and low level, rather than what we used to think the 1234 number, so that we can solve a mystery, the computer also nothing mysterious? Figure 1 Figure 2 Lets look at figure 1. This is a sketch of memory: a memory like small drawer, a small drawer has eight small grid, each grid is used to store charge, charge through wires attached to it incoming or release, as for the charge is how to put in the small grid, need not we worry about, you can imagine the wire into the pipe, the charge is like water in the small grid, that is understandable. Each little drawer in memory is a place where data is placed. We call it a unit. With such a structure, we can begin to store data, want to put in a data of 12, as long as we put the second and third in the small grid storage full charge, and other small compartments in charge to drain line (see figure 2). But problems come out, see figure 1, there are many units, a memory line is parallel, when put in charge will charge in all the cells, and release charge, take charge of each unit are put out, so, no matter how many letters are there in the storage unit, can only put the same number, of course it isnt what we hope, therefore, to make a little change in the structure, see figure 1, in each unit has a control line, I want to put the data in which cell, will give a signal to the unit line, the line will turn on the switch, so the charge can flow freely, and other units on the line no signal, so dont open switch, will not be affected, so, as long as the control of different cells line, can to write different data units, in the same way, if you want to fetch the data in a cell, also just open the corresponding control switch. Memory decoding So, how do we control the control of each unit? This is not easy. Is the control line of each unit draw