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- 07/08/94
- RISC OS 3 - which upgrade do I need ?
-
- RISC OS 3 upgrade kits for all Acorn 32 bit systems are now available.
- We have had a number of calls asking which upgrade products are
- required for various computers, so here is a table showing what is
- needed for each model:
-
- A305, A310, A440 and R140
-
- This range of computers require the RISC OS Single User Software
- Upgrade Kit (ALA31). They will also require a Hardware Upgrade Kit
- (ALA32) which allows for the memory size of the new operating system
- to be taken into account. One issue that complicates this is that
- various third party memory upgrades for the 300 series provide the
- option to fit larger RISC OS chips at a later date - if the RISC OS 2
- chips are fitted in sockets which have two empty spaces on each side
- you may not require the Hardware Upgrade Kit.
-
- A410/1, A420/1, A440/1, A3000, A540, R260 and A5000
-
- This range only requires the RISC OS Single User Software Upgrade Kit
- (ALA31).
-
- Schools can purchase Bulk Software Upgrade kits which contain 10 Sets
- of ROMS, 1 Set of Discs and 1 Set of Manuals, If they have the earlier
- systems they will of course require a Hardware Upgrade Kit for each
- machine.
-
- A4, A3010, A3020, A4000
-
- These machines are already fitted with RISC OS 3.
-
- Computers with amnesia ?
-
- All Acorn computers since the Master 128 have relied upon configuration
- settings being stored in a memory device which is kept powered even
- when the computer is switched off. This is usually, though incorrectly,
- referred to as CMOS RAM.
-
- With the exception of the Master Compact, the power to maintain the
- settings (and the real time clock) comes from batteries inside the
- computer. The Master Compact used a device called an EEPROM (Electrically
- Erasable Programmable Read-Only Memory) which did not require a battery,
- but only allows a limited number of write operations - where a Master
- Compact is failing to retain it’s settings this device may need replacing.
-
- On most ARM based 32 bit systems the battery is a NiCad (Nickel Cadmium)
- cell, which is trickle-charged whilst the computer is switched on. This
- can mean that after a machine has been unused for a very long period it
- may need to be left on for several hours to recharge the battery. These
- batteries should not need replacing.
-
- The Master 128, Archimedes 305/310, Archimedes 440 and Archimedes 400/1
- series all use a battery pack with conventional battery cells. The
- recommended replacement interval for these batteries is annually, however
- they will often work for much longer. Even now, it is not uncommon to see
- a 305/310 still on it’s original pair of batteries! If you’ve got one of
- these computers - when were your batteries last changed ?
-
-
- Printing with First Word Plus
-
-
- We receive a lot of enquiries concering printing from First Word Plus.
- First Word Plus is a little different to most applications in that it
- uses it’s own printer drivers, though it is also possible to use the normal
- RISC OS drivers (!PrinterDM etc). If your printer is not one of those
- supported (or cannot emulate one of these) then you will need to write your
- own printer driver. This is easiest done by amending the source file of an
- existing driver to contain the correct command codes for your printer.
- Brief details of how to approach this task are given in the First Word
- Plus User Guide and more detailed instructions can be obtained by writing
- to Acorn’s Customer Services Dept.
-
- Happy Christmas from everyone in Acorn Customer Services