Found 55 Articles for Memory

As processes are loaded and removed from memory, the free memory space is broken into little pieces. It may so happen after sometime that processes cannot be allocated to memory blocks considering their small size and memory blocks remain unused. This problem is known as Fragmentation. There are two types of fragmentation namely, Internal Fragmentation and External Fragmentation. Read this article to learn more about these two types of fragmentation and how they are different from each other. What is Internal Fragmentation? Internal fragmentation is defined as the difference between memory allocated and the memory space required by a process. ... Read More

DDR stands for Double Data Rate. The DDR RAM is capable of transferring data on both edges, i.e. falling edge and rising edge of the clock pulse. Thus, it doubles the data transfer rate, hence it named so. The DDR RAM also comes in several versions (or generations), such as DDR, DDR2, DDR3, DDR4, etc. Each version/generation of the DDR RAM offers enhanced performance in terms of speed, storage capacity, energy efficiency, etc. In this article, we will discuss the two generations, i.e., DDR2 and DDR3 of the DDR RAM, and the important differences between them. What is DDR2? DDR2, ... Read More

RAM, short for Random Access Memory, is used for storing computer programs and data that the CPU needs in real time. RAM data is volatile and is erased once computer is switched off. CAM, short for Content Addressable Memory, is used for storing data words that searches its memory for a provided word and returns the list of addresses where data word is found. Read this article to find out more about RAM and CAM and how they are different from each other. What is RAM? RAM is a type of primary memory used in computer systems for storing ... Read More

Both RAM and HDD are types of computer memory. RAM is used to store computer programs and data that the CPU needs in real time. RAM data is volatile and is erased once the computer is switched off. HDD, hard disk, has permanent storage and it is used to store userspecific data and operating system files. HDD data is static and remains in the computer even if computer is switched off. Read this article to find out more about RAM and HDD and how they are different from each other. What is RAM? RAM stands for Random Access Memory. ... Read More

MMU and MPU are memory management hardware used by the CPU. The set of all the logical addresses generated by a program is referred to as a "logical address space". The set of all the physical addresses corresponding to these logical addresses is referred to as a "physical address space". The user program deals with virtual addresses; it never sees the real physical addresses. Read this article to learn more about MMU and MPU and how they are different from each other. What is MMU? MMU (Memory Management Unit) is used for virtual memory and memory protection operations. The runtime ... Read More