On 11 Nov 2004, at 04:27, Tim S wrote:
How come the cursor keys don't work in Macwrite? (Or am I missing some key combination?) This keyboard is model M0110A. Is that original to this model?There are no cursor keys on the original short keyboard (without a numeric pad) as such keys would compromise the 'purity; of the new-fangled mouse. So, MacWrite was probably written before there were cursor keys?
AFAIK, the 128Kb was supplied with the short kbd, and the Plus with the long one. I'm not certain about the 512K and 512Ke models.
Right about the 128K and Plus. The 512K shipped with the short keyboard (this was my first Mac). I would suspect the 512Ke shipped with the long keyboard as it was introduced at the same time as the Mac Plus.
The Mac itself shows a model number of M0001W on the back lid, and has the Macintosh 512K logo, but under the screen the label reads just M0001. The serial number also ends just in M0001, and indicates a manufacture date during the 21st week of 1984, which is the middle of May, several months before the model was introduced, I think. So does that mean this is a 128K that was upgraded after the fact, or upgraded in the factory before being sold, or somewhere inbetween? Or is the only way to really tell to look at the logic board?
That wouldn't prove anything, I think, as the upgrade involved a board replacement. It didn't involve, AFAIK, a case bucket swap, so I think yours is probably original. Though, of course, someone could have put it together from two different Macs sometime in the last 20 years!
The 512K to Mac Plus upgrade was in three steps.
Upgrading the ROMs from 64K to 128K ROMs and changing the single sided 400K floppy to a 800K drive. IIRC the floppy controller wasn't changed with this one but I'm not positive. This didn't involve a change in the case.
Upgrading the logic board to a Plus version. This increased the memory to 1Mb with room to expand to 4Mb. It also included the SCSI interface. The serial ports were changed from DE-9 to Mini-DIN 8 connectors to make room for the DB-25 SCSI connector. The upgrade includes a change in rear case. This upgrade required the ROM/Drive upgrade.
Finally there was the keyboard upgrade. It could be done independently of the other two upgrades.
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