Adding at least 128K of extra RAM to the Cambridge Z88 will change it from being an 'unexpanded' machine, to an expanded machine, the preferred configuration.
An expanded machine will allow the use of a large BASIC work space and a larger map size in PipeDream.
As the OZ 4.5 ROM needs to be in Slot 1, the rules on what happens with different size RAM cards are slightly different than the standard machine.
To solve all the problems with RAM, please use either the 512K/512K Flash/RAM or the 1M/1M Flash/RAM combination.
|Slot 1||Slot 2|
|32K||512K / 512K|
The Z88 uses some of the extra RAM for itself internally for Applications and BBC BASIC. You will quickly discover that you need more RAM than you think.
The following example assumes using a 20K document in Pipedream with a 128K RAM Pack.
|Size of RAM||128K|
|Amount used by Z88 (expanded machine)||40K|
|Additional amount used by Pipedream||20K|
|Amount required to store the file in :RAM.1||20K|
Remember If you have not got enough space to save the file to RAM, you will not be able to save it to the Flash or EPROM Pack..
To find out what version of operating system is fitted, press the the key. When you then press the key, the INFO for the System Information page. The Cambridge Z88 will display the Operating System version number and other details. Press the key to return to the Index.key and then