What does RAM mean in computer vocabulary?

1. Random-access memory:

There is a very important part of the structure of a computer, which is memory. Memory is a part used to store programs and data, for a computer, with memory, there is a memory function, in order to ensure normal operation. There are many types of memory, which can be divided into primary memory and auxiliary memory [or internal memory and external memory] according to their purpose, and primary memory is referred to as memory.

Memory plays a pivotal role in a computer. Memory generally uses semiconductor memory cells.

Because RAM is the most important memory in memory, we usually call it memory directly.

Memory is where programs and data are stored, for example, when we use WPS to process a document, when you type a character on the keyboard, it is stored in memory, and when you choose to save, the data in memory will be stored in a hard (magnetic) disk.

RAM is the ability to read and write data from it. When the power of the machine is turned off, the data stored in it is lost. The memory module that we usually buy or upgrade is used as the memory of the computer, and the memory module (SIMM) is a small piece of circuit board that brings together the RAM integration blocks, which is plugged into the memory slot in the computer to reduce the space occupied by the RAM integration block.

At present, the common memory modules on the market are 128M, 256M, 512M, etc.

2. SDRAM (Synchronous DRAM): Synchronous DRAM. The current 168-line 64bit bandwidth memory basically uses SDRAM chips, which work at a voltage and access speed, while EDO memory is as fast as 15ns.

The RAM and CPU are controlled at the same clock frequency, so that the RAM and the CPU external frequency are synchronized to cancel the waiting time. Therefore, its transfer rate is faster than that of EDO DRAM.

The storage speed of the RAM chip.

The storage speed of the RAM chip is faster than that of the ROM chip, but it is slower than the speed of the cache.

Advantages and disadvantages of dynamic RAM and static RAM.

Static RAM relies on bistable triggers to memorize information; Dynamic RAM relies on the gate capacitance in the MOS circuit to memorize information. Since the charge on the capacitor leaks and needs to be replenished at regular intervals, the dynamic RAM needs to be set up with a refresh circuit. However, dynamic RAM has a higher integration and lower power consumption than static RAM, so the cost is also low, and it is suitable for large-capacity memory.

Therefore, the main memory usually uses dynamic RAM, while the cache uses static RAM. In addition, memory is also used in graphics cards, sound cards, CMOS and other devices to act as a device cache or to save fixed programs and data.

ROM refers to "read-only memory", which can only read out and cannot write information; Once the information is written, it is fixed, and even if the power is cut off, the information will not be lost, so it is also called fixed memory. RAM stands for "Random Access Memory", which can store information to and from a specified cell, but the stored information is lost when the power is off.

RAM stands for Random Access Memory and ROM stands for Read-Only Memory. Different functions, different memories, and different types of stored data.

RAM is random access memory, which can be read and written at any time, and the speed is fast, ROM is read-only memory, and the information in it cannot be changed casually once saved.

RAM stands for Random Access Memory.

RAM is the internal memory that directly exchanges data with the CPU, also known as main memory (memory). It can be read and written at any time, and it is fast, often as a temporary data storage medium for operating systems or other running programs.

On the mobile phone, when running the program, it will generate cache information data such as **, text, **, etc., which will be temporarily stored in RAM, because the response speed of RAM is very fast and will not hinder the normal operation of the mobile phone.

Among all the storage media, RAM access is the fastest, that is, when storing and writing temporary data, RAM can complete instructions quickly, and almost no response time is required. The advantage of reading and writing RAM is that there is basically no mechanical aspect involved.

Disadvantages of RAM

RAM can only be used to store temporary data, because its operation requires the device to be powered on, once the power is off, the RAM will stop working, and the temporary storage data will disappear, so data that needs to be stored for a long time such as **, **, documents, etc. can only be stored in the ROM. The capacity of the RAM also does not support the storage of these data.

Tape RAM is random access.

RAM refers to the memory installed in the computer chassis, which is hardware memory, that is, the storage space of the memory provided by the merchant or the memory module installed by the owner himself. There are two types of memory in a computer, which are physical memory and virtual memory. Physical memory refers to a memory module, and virtual memory can be set by itself, which is to take out part of the useless space from the computer's hard disk and share it with the memory.

Some software needs to occupy a lot of virtual memory and physical memory, and the smoothness of the computer is mainly reflected in the size of the physical memory.

Machine RAM is not as simple as the general saying of the computer in the memory module, literally it is not difficult to understand the meaning of the board rather than the memory module inserted in the memory card slot, many early computer motherboards are onboard running memory without additional memory module expansion, because it is the cover state loss soldering on the motherboard without the problem of poor contact, the disadvantage is the obvious non-expandable memory capacity.

Applications with high requirements for RAM:

For most home computers, the biggest use of RAM is the operating system itself, and the rest are browsers, common apps and games, and the rest of the RAM resources are very small. A portion of the RAM is used to keep the browsers running basically, whether it's Windows or macOS, and the more RAM left, the more tabs can be opened with browsers like Chrome, Firefox, and Internet Explorer.

In addition, some ** also consume a lot of RAM, such as the text-only news network Wushen station does not have much pressure, and like Gmail or Netflix** it takes up more running memory. As the complexity of the application increases, more RAM is consumed. Simple games like chat apps or minesweepers hardly take up much of your RAM.

But huge Excel** or Photoshop files tend to consume 1GB of RAM. For professional engineering software, it is a big consumer of RAM, and at the same time, large-scale 3D games often put RAM to a greater test.

RAM is running memory, referred to as memory, which is an element used in mobile phones to temporarily store data, which is equivalent to a memory module in a computer.

It can be read and written at any time, and it is very fast, and it is usually used as a temporary data storage medium for operating systems or other running programs. RAM will lose its storage content when it loses power, so it is mainly used to store programs that are used for a short period of time.

Phone speed and running memory methods.

The speed of the mobile phone system and the speed of the program run mainly depends on the size of the memory (RAM), which is consistent with the memory on the computer. If the memory is small, it will be slow, and if the memory is large, it will be fast.

If there is a lack of memory when running a program or game, this is related to the running memory of the system, and has nothing to do with the capacity of the C disk and E disk memory card, even if there are still hundreds of MB of space on your memory card, it is useless, what we need to solve is to release the running memory occupied by the program, so that the running memory is as large as possible.

Phone speed and running memory methods.

The speed of the mobile phone system and the speed of the program run mainly depends on the size of the memory (RAM), which is consistent with the memory on the computer. If the memory is small, it will be slow, and if the memory is large, it will be fast.

If there is a lack of memory when running a program or game, this is related to the running memory of the system, and has nothing to do with the capacity of the C disk and E disk memory card, even if there are still hundreds of MB of space on your memory card, it is useless, what we need to solve is to release the running memory occupied by the program, so that the running memory is as large as possible.