Show
The basic difference between primary and secondary memory is that the primary memory is directly accessible by CPU whereas, the secondary memory is not directly accessible to CPU. Let us discuss some more differences between Primary and secondary memory with the help of the comparison chart shown below. Content: Primary Vs Secondary Memory
Comparison Chart
Definition of Primary MemoryPrimary memory is the main memory of computer system. The instructions that have to be currently executed is copied to the primary memory because CPU can directly access the data from primary memory. Accessing data from primary memory is faster as it is an internal memory and processor accesses data from primary memory using data bus. The primary memory is usually volatile in nature which means data in primary memory does not exist if not saved, in case the power failure occurs. The primary memory is semiconductor memory and is more expensive than secondary memory. The primary memory capacity is limited in computer and is always smaller than secondary memory.Primary memory can be divided into two types of memory that are RAM (Random Access Memory) and ROM (Read Only Memory).
Definition of Secondary MemorySecondary memory is an auxiliary memory of the computer. The data that has to be permanently stored is kept in secondary memory. The CPU can not directly access the data in secondary memory. The data has to be initially copied to primary memory then only it can be processed by CPU. Hence, accessing data from secondary memory is slower. The secondary memory can be accessed using the input-output channel. The secondary memory is nonvolatile in nature, which means that the content of the secondary memory exist even if the power is switched off. The secondary memory is magnetic memory or optical memory and it available at cheaper rates as compared to the primary memory.Secondary memory is available in bulk and always larger than primary memory. A computer can even work without secondary memory as it an external memory. The examples of secondary memory are the hard disk, floppy disk, CD, DVD, etc.
ConclusionPrimary memory is expensive and is available in limited in size in a computer. Secondary memory is cheaper and is present in bulk in the computer. Computer can even work without secondary memory but not without primary memory. What is the difference between primary storage and secondary storage give one example each?Primary memory usually refers to Random Access Memory (RAM), while secondary storage refers to devices such as hard disk drives, solid state drives, removable “USB” drives, CDs, and DVDs.
What are the main differences between primary and secondary storage?Primary is the main memory that accesses data faster than secondary memory. It is an internal memory of a computer system. Secondary memory refers to all secondary storage devices that can store large volumes of information. There are two primary memory, i.e., RAM (Random Access Memory) and ROM (Read Only Memory).
What are 2 examples of secondary storage?Typical secondary storage devices include magnetic tape drives, magnetic disk drives, compact optical disk drives, and archival storage devices such as disk jukeboxes.
What is an example of primary storage?Random access memory (RAM), graphic card memory and cache memory are common examples of primary storage devices.
|