www. O S N E W S .com
News Features Interviews
BlogContact Editorials

Inside the Intel 1405: die photos of a shift register memory
By Thom Holwerda on 2014-12-22 00:25:45

In 1970, MOS memory chips were just becoming popular, but were still very expensive. Intel had released their first product the previous year, the 3101 RAM chip with 64 bits of storage.[1] For this chip (with enough storage to hold the word "aardvark") you'd pay $99.50. To avoid these astronomical prices, some computers used the cheaper alternative of shift register memory. Intel's 1405 shift register provided 512 bits of storage - 8 times as much as their RAM chip - at a significantly lower price. In a shift register memory, the bits go around and around in a circle, with one bit available at each step. The big disadvantage is that you need to wait for the bit you want to come around, which can take half a millisecond.

Great article.

5  Comments - Printer friendly - Related stories
Recent related stories
- Intel CEO resigns over past relationship with employee - 2018-06-21
- Intel "forgot" to mention 28 core, 5 GHz demo was overclocked - 2018-06-08
- Intel's 28-core 5 GHz CPU: coming in Q4 - 2018-06-05
- Intel launches Optane DIMMs up to 512GB - 2018-05-31
- Intel delays its 10 nm 'Cannon Lake' CPUs yet again - 2018-04-27
- More related articles
 

Tell a friend
Your full name:
Your email address:
Your friend's email:
Anti-spam measure:
5+2=

News Features Interviews
BlogContact Editorials


WAP site - RSS feed
© OSNews LLC 1997-2007. All Rights Reserved.
The readers' comments are owned and a responsibility of whoever posted them.
Prefer the desktop version of OSNews?