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Editor to share with you how the computer memory is composed, I believe that most people do not know much about it, so share this article for your reference, I hope you will learn a lot after reading this article, let's go to know it!

In a computer, memory, also known as main memory, is a memory space that can be addressed directly by CPU. It is made of semiconductor devices and is mainly composed of memory bank, control circuit, address register, data register and address decoding circuit.

A very important part of the structure of a computer is memory. It is a component used to store programs and data.

For the computer, with the memory, there is a memory function to ensure normal work.

There are many kinds of memory. According to its use, it can be divided into main memory and auxiliary memory, the main memory is also called internal memory (referred to as memory, RTHK is called memory).

Memory, also known as main memory, is a storage space that can be addressed directly by CPU. Semiconductor memory is generally used. Compared with auxiliary memory, it has the characteristics of small capacity, fast reading and writing speed, high price and so on.

The main memory (memory) in the computer is mainly composed of memory bank, control circuit, address register, data register and address decoding circuit.

Technical index

The total number of storage units that can be held in a memory. The number of bytes of storage space.

Access time, the unit of speed of main memory experienced from startup to the completion of a memory operation, in ns

Storage cycle, the minimum time required to start two operations in a row, the speed unit of main memory in ns

Memory bandwidth, the amount of information accessed by memory per unit time, is an important technical index to measure the data transfer rate, in b ∕ s (bit / s) or B ∕ S (byte / s).

A storage unit that stores a machine word, usually called a word storage unit, and the corresponding unit address is called the word address. The unit that stores one byte is called the byte storage unit, and the corresponding address is called the byte address. If the smallest addressable unit in a computer is a word storage unit, the computer is called a word-addressable computer. If the smallest addressable order in the computer

If a bit is a byte, the computer is called a byte-addressed computer. A machine word can contain several bytes, so a memory cell can also contain several byte addresses that can be addressed separately. For example, in the PDP-11 series computers, a 16-bit binary word storage unit can hold two bytes and can be addressed by word address or byte address. When addressing with a byte address, a 16-bit memory unit occupies two byte addresses

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