Memory RAM

 MEMORY   RAM.

What is RAM Memory

RAM (short for Random Access Memory) is a type of volatile memory in a computer.
This means it loses all stored information when the system is turned off.

RAM temporarily stores the data and programs that the CPU needs to use immediately.
The more RAM a system has, the more tasks it can perform simultaneously and the faster it operates.

Main Functions of RAM

1. Temporary storage of active data
   Stores the data being used or processed by the operating system, applications, and ongoing processes.
   For example, when you open a web browser, its data is loaded into RAM for faster access.

2. Support for the CPU (processor)
   RAM acts as an intermediary between the storage (hard drive or SSD) and the CPU.
   The CPU is extremely fast, but it cannot wait for data to arrive from a slower hard drive; therefore, RAM serves as a high-speed workspace.

3. Program execution and multitasking
   Allows multiple programs to run simultaneously.
   If RAM becomes full, the system uses “virtual memory” (part of the hard drive), which is slower.

4. Cache and buffers
   RAM is also used as a buffer or cache for temporary operations, such as video editing or loading textures in a game.

Types of RAM

1. DRAM (Dynamic RAM)

The most common type of RAM in computers.
Stores each bit of information in a capacitor that must be refreshed constantly.
Examples: DDR4, DDR5.

2. SRAM (Static RAM)

Faster but much more expensive.
Used as the processor’s cache memory (not as main RAM).
Does not need constant refreshing.

3. VRAM (Video RAM)

Memory dedicated to graphics cards (GPUs).
Stores textures, shadows, and other graphical data.

4. LPDDR (Low Power DDR)

A low-power version used in laptops, tablets, and smartphones.

Importance of Having Enough RAM

• Higher speed: reduces the use of virtual memory, which is slower.

• Better multitasking: allows more programs to run at the same time.

• Optimized performance: modern games and design software require a large amount of memory.

• System stability: prevents crashes or slowdowns due to lack of temporary space.