Understanding Memory Allocation: Static vs. Dynamic

When we talk about how computers use memory, there are two main ways: static memory allocation and dynamic memory allocation. These two methods affect how efficiently a computer can use its memory. Let’s break them down.

Static Memory Allocation:

• With static memory allocation, a computer sets aside a specific amount of memory before the program starts.
• This method works best when the size needed is known and won't change.
• However, it can waste up to 30% of memory in some cases because that space is reserved, even if we don’t use it.

Dynamic Memory Allocation:

• Dynamic memory allocation is different. Here, the computer allocates memory while the program is running.
• This way, it can adjust to the changing size needs, which helps use memory better. It can save about 15-25% more memory.
• But there’s a downside. Sometimes, memory can get broken up in pieces (this is called fragmentation), leading to a waste of about 5-15% of memory.

In many cases, like in hospitals, using dynamic memory allocation can cut down memory use by about 20%. This means they can keep things running smoothly while using less memory.

So, understanding these methods is important for using memory efficiently in computers!