Editing Core rope memory (section)

==Memory density==

By the standards of the time, a relatively large amount of data could be stored in a small installed volume of core rope memory: 72&nbsp;kilobytes per cubic foot, or roughly 2.5&nbsp;megabytes per cubic meter.  This was about 18 times the amount of [[magnetic-core memory]] (within two cubic feet).{{Citation needed|reason=These measurements don't make sense as the entire computer was one cubic foot.|date=April 2020}}

{| class="wikitable" style="margin:1em auto;"
<!--
|+''Core rope, core memory data density (number of data units per volume of memory)''
|-
-->
! rowspan="2" width="28%" | Memory<br />technology
! colspan="2" | Data units per cubic foot
! colspan="2" | Data units per cubic meter
|-
! width="18%" | Bytes
! width="18%" | Bits
! width="18%" | Bytes
! width="18%" | Bits
|- align="right"
| align="left" | Core rope ROM
|    72&nbsp;KB
|   576&nbsp;Kbit
|  ~2.5&nbsp;MB
|   ~20&nbsp;Mbit
|- align="right"
| align="left" | Magnetic-core RAM
|    4&nbsp;KB
|   32&nbsp;Kbit
| ~140&nbsp;KB
|   ~1&nbsp;Mbit
|}
{{clear}}