pctechguide.com

  • Home
  • Guides
  • Tutorials
  • Articles
  • Reviews
  • Glossary
  • Contact

EDO and BEDO DRAM – History and Evolution of Product

Extended Data Out DRAM comes in 70ns, 60ns and 50ns speeds. 60ns is the slowest that should be used in a 66MHz bus speed system (i.e. Pentium 100MHz and above) and the Triton HX and VX chipsets can also take advantage of the 50ns version. EDO DRAM doesn’t demand that the column be deactivated and the output buffer turned off before the next data transfer starts. It therefore achieves a typical burst timing of 5-2-2-2 at a bus speed of 66MHz and can complete some memory reads a theoretical 27% faster than FPM DRAM.

BEDO RAM

Burst EDO DRAM is an evolutionary improvement in EDO DRAM that contains a pipeline stage and a 2-bit burst counter. With the conventional DRAMs such as FPM and EDO, the initiator accesses DRAM through a memory controller. The controller must wait for the data to become ready before sending it to the initiator. BEDO eliminates the wait-states thus improving system performance by up to 100% over FPM DRAM and up to 50% over standard EDO DRAM, achieving system timings of 5-1-1-1 when used with a supporting chipset.

Despite the fact that BEDO arguably provides more improvement over EDO than EDO does over FPM the standard has lacked chipset support and has consequently never really caught on, losing out to Synchronous DRAM (SDRAM).

  • What is Level 1 (L1) Cache Memory?
  • What is L2 (Level 2) cache memory?
  • RAM or Main Memory – PC / computer memory (DIMM, DRAM, SDRAM)
  • DRAM – Dynamic Random Access Memory
  • FPM DRAM
  • EDO (Extended Data Out) and BEDO (Burst Extended Data Out) DRAM
  • SDRAM
  • PC133 SDRAM
  • DDR SDRAM explained
  • DDR2 DRAM
  • Dual Channel DDR Memory
  • 1T SRAM
  • Direct DRAM
  • SIMMs
  • DIMM Memory
  • RIMMs Memory
  • Memory Presence Detection
  • Parity Memory
  • ECC Memory
  • Memory Upgrades
  • The Evolution of Memory
  • Flash Memory
  • Magnetic RAM

Filed Under: Computer Memory Tagged With: BEDO memor, BEDO RAM, EDO memory, EDO RAM

Latest Articles

CD-ROM Green Book

The Green Book describes the CD-interactive (CD-i) disc, player and operating system and contains the following: CD-I disc format (track layout, sector structure) Data retrieval structure which is based on ISO 9660 Audio data using ADPCM levels A, B and … [Read More...]

Move Folders to Start Menu

Add Folders to Start Menu in Windows

I've been talking a little lately about how to keep your desktop more organized. I absolutely hate clutter on the desktop. It makes finding things a pain. I try to put only the most important things on the desktop. I have seen many people put dozens of folders on the desktop because they access them … [Read More...]

Hard Disk Perpendicular Recording

In perpendicular recording, the magnetisation of the bit is aligned vertically - or perpendicularly - in relation to the disk drive's platter. Since the bits do not directly oppose each other, the need for transition packing is significantly reduced. This allows bits to be more closely … [Read More...]

20 Cool Creative Commons Photographs About the Future of AI

AI technology is starting to have a huge impact on our lives. The market value for AI is estimated to have been worth $279.22 billion in 2024 and it … [Read More...]

13 Impressive Stats on the Future of AI

AI technology is starting to become much more important in our everyday lives. Many businesses are using it as well. While he has created a lot of … [Read More...]

Graphic Designers on Reddit Share their Views of AI

There are clearly a lot of positive things about AI. However, it is not a good thing for everyone. One of the things that many people are worried … [Read More...]

Redditors Talk About the Impact of AI on Freelance Writers

AI technology has had a huge impact on our lives. A 2023 survey by Pew Research found that 56% of people use AI at least once a day or once a week. … [Read More...]

11 Most Popular Books on Perl Programming

Perl is not the most popular programming language. It has only one million users, compared to 12 million that use Python. However, it has a lot of … [Read More...]

10 Exceptional Books on ChatGPT that Will Blow Your Mind

ChatGPT is a powerful new AI tool that is taking the world by storm. You are going to find a lot of amazing books that will teach you how to make the … [Read More...]

Guides

  • Computer Communications
  • Mobile Computing
  • PC Components
  • PC Data Storage
  • PC Input-Output
  • PC Multimedia
  • Processors (CPUs)

Recent Posts

Review of Temu From Purchaser and Affiliate

Temu is a relatively new online shopping platform that has quickly gained popularity, especially among Gen Z shoppers. It is known for its ultra-cheap … [Read More...]

BIOS – What motherboard BIOS does for a PC

All motherboards include a small block of Read Only Memory (ROM) which is separate from the main system memory used for loading and running … [Read More...]

Number Systems 2

Decimal The difficult for us when approaching computer number systems is that we're conditioned in to counting with our familiar base 10 system, … [Read More...]

[footer_backtotop]

Copyright © 2025 About | Privacy | Contact Information | Wrtie For Us | Disclaimer | Copyright License | Authors