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Basic knowledge of memory

Memory Fundamentals

What is the memory of a computer? What is computer memory? In computing, memory refers to a device that is used to stor

Memory Types

What are types of computer memory? Computer memory is divided into main or primary memory and auxiliary secondary memor

Memory Applications

What does computer memory do? Computer memory is used to store data or programs (sequences of instructions) on a tempor

Welcome to the Memory!

Memory Fundamentals

What is the memory of a computer?

What is computer memory? In computing, memory refers to a device that is used to store information a temporary or permanent basis for immediate use in a computer or related computer hardware device. It is the storage space in the computer, where data is to be processed and instructions required for processing are stored. The term "memory" is often synonymous with the term "primary storage" or "main memory".

In a semiconductor memory chip, each bit of binary data is stored in a tiny circuit called a memory cell consisting of one to several transistors. The memory cells are laid out in rectangular arrays on the surface of the chip.

Memory can be either volatile and non-volatile memory. Volatile memory (RAM) is memory that loses its contents when the computer or hardware device loses power. Examples of non-volatile memory include read-only memory (see ROM), flash memory, most types of magnetic computer storage devices (e.g. hard disk drives, floppy disks and magnetic tape), optical discs, and early computer storage methods such as paper tape and punched cards.

 

Memory Types

What are types of computer memory?

Computer memory is divided into main or primary memory and auxiliary secondary memory (hard drive, CD,etc.). Primary memory is directly accessible by Processor/CPU. Secondary memory is not directly accessible by the CPU. ... The memory devices used for primary memory are semiconductor memories. The secondary memory devices are magnetic and optical memories. Main memory holds instructions and data when a program is executing, while auxiliary memory holds data and programs not currently in use and provides long-term storage.

There are basically two kinds of internal memory: ROM and RAM. RAM, which stands for random access memory, and ROM, which stands for read-only memory, are both present in your computer. RAM is volatile memory that temporarily stores the files you are working on. ROM is non-volatile memory that permanently stores instructions for your computer.

There are a lot of semiconductors memory types, all with their own applications, characteristics and construction. This page lists the different semiconductors memory types which are described on the semiconductors memories guide.

Memory Applications

What does computer memory do?

Computer memory is used to store data or programs (sequences of instructions) on a temporary or permanent basis for use in an electronic digital computer. How do logic gates store information? The memory cells are grouped into words of fixed word length, for example 1, 2, 4, 8, 16, 32, 64 or 128 bit. Each word can be accessed by a binary address of N bit, making it possible to store 2 raised by N words in the memory. In a semiconductor memory chip, each bit of binary data is stored in a tiny circuit called a memory cell consisting of one to several transistors. The memory cells are laid out in rectangular arrays on the surface of the chip.

When a program, such as your Internet browser, is open, it is loaded from your hard drive and placed into RAM.  RAM gives applications a place to store and access data on a short-term basis. It stores the information your computer is actively using so that it can be accessed quickly. So this process allows that program to communicate with the processor at higher speeds. Anything you save to your computer, such as a picture or video, is sent to your hard drive for storage.

Semiconductor memories used in a wide variety of applications. This category contains pages explaining various semiconductor memory applications.

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