And it was fast and responsive, too.
Soon afterwards I bought a Psion 3 which ran a multitasking GUI OS on an 8086 in 256 kB of RAM.
That space was shared with file storage in a RAMdisc.
https://phonedb.net/index.php?m=device&id=826&c=psion_series...
It was perfectly viable to have multiple apps open and flip between them. It ran for weeks on a pair of AA batteries.
And it was fast and responsive, too.
Soon afterwards I bought a Psion 3 which ran a multitasking GUI OS on an 8086 in 256 kB of RAM.
That space was shared with file storage in a RAMdisc.
https://phonedb.net/index.php?m=device&id=826&c=psion_series...
It was perfectly viable to have multiple apps open and flip between them. It ran for weeks on a pair of AA batteries.