What is a memory

 

Ram

What is PC? What is a memory?

Answer: -PC: A PC is a computer that is used by one person at a time in a business, a school, or at home. PC is an abbreviation for personal computer. The first personal computer produced by IBM was called the PC. The purpose of the computer is to perform calculations, store information, retrieve data and process information.

Memory: The memory is another very important element of the computer. Without memory the computer cannot operate in present age. Modern age it is called the RAM. The main reason behind the memory is that it is rapidly communication with the processor. In which unit stores given data instruction, program and result is memory or memory unit.

There are two types main memory

1.       Primary memory: RAM, ROM, Cache memory

2.       Secondary memory: Hard Disk Drive, Floppy Disk Drive, DVD, Pen Drive

Write the difference between Primary & Secondary Memory?

 

Answer:Difference between Primary & Secondary Memory:

 

Primary memory	Secondary memory
To store something temporarily in To store computer is called Primary memory	To store something permanently in To store computer is called Secondary memory.
Primary memory is known as main memory.	Secondary memory is known as additional memory or back memory.
The memory devices used for Primary memory are semiconductor memories	The Secondary memory device are magnetic and optical memories.
The primary memory is categorized as volatile and non-volatile memories, RAM is the volatile memory and ROM is the non-volatile memory	The secondary memory is always non volatile
The primary memory is composed of and that are presently being used by the microprocessor	The Secondary memory enough capable to store huge amount data information.
The primary memory are more effective and fast to interact with the microprocessor,	The Secondary memory are somewhat slow in interacting with the microprocessor, when compared with the primary memory.
Primary memory is temporary	Secondary memory is permanent.
Commonly used primary memory (main memory) available in the range of 512 MB to 8GB RAMs.	Generally secondary memories range between 80 GB to 1 Zettabytes Hard Disk drive.
The primary memory devices are connected to the computer through “slots”.	The Secondary memory devices are connected to the computer through cables.