Fingers Crossed for 2021 ...

2020 was the worst! COVID kept the museum closed for much of the year and a mains water pipe bursting causing a flood kept us closed for the rest. 
We're hoping to re-open in the next few months ... fingers crossed! Read More >>>

Please Donate Via Just GivingNo visitors, no workshops, no events, no school visits... no income. We know that things are tough for everyone right now, but if you can afford to help us through these tough times please donate what you can.

There's over 36,000 exhibits here! That should keep you occupied for a bit - get searching!

Or come and get involved on our social media channels ...

      Twitch  Facebook          Online Gift Shop      

Thank you.

Ferranti Atlas Operating System Part 1 Users Description

The Manchester University Atlas Operating System, Part II: Users' Description, D.J. Howarth, R.B. Payne, F.H. Sumner, Comp. J. October 1961

Reprint of an article from "The Computer Journal" October 1961

The Atlas computer was designed and built in the Department of Computer Science at the University of Manchester with the collaboration of ICL. When it was completed, in December 1962, it was the most powerful computer in the world. It included many innovative design features of which the most important were the implementation of virtual addressing and the one-level store. This paper gives a brief summary of the structure of the Atlas and of the effect of extensive instruction overlapping on the final performance. The main part of the paper describes the implementation of the one-level store including the learning program which efficiently managed the movement of pages between the two physical levels of store.

We are extremely grateful to both Dawn and Kim Wakefield for the kind donation of the collection of their late father Richard Wakefield


Reference Number :

Date Published : October 1961

Manufacturer : Ferranti

Platform : Atlas

 

 

 

 

 

This exhibit has a reference ID of CH15921. Please quote this reference ID in any communication with the Centre for Computing History.
 

Ferranti Atlas Operating System Part 1 Users Description

Click on the Images For Detail






Help support the museum by buying from the museum shop

View all items

Founding Sponsors
redgate Google ARM Real VNC Microsoft Research
Heritage Lottery Funded
Heritage Lottery Fund
Accredited Museum