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Some Interesting Information about Apple ][e computers and changes made during the Production Lifecycle

This is the Legend for my Spread sheet for my Apple ][ computers.
These seem to be the major differences that I have encountered in the Apple ][e I have found..
They are all U.S.A. Versions.

Case Serial Number
The Serial Number located on the Label, on the Bottom of the Case.

Power Supply Serial/Date
The Serial Number located on the Power Supply. Not all Serial Numbers are visible.

Motherboard Date
The Date in the Form of YYWW, or sometimes WWYY of when the Motherboard was assembled.

Motherboard Version
The Version of the Motherboard from when the Printed Circuit Board was made. It is made the same way the Traces are made.

Motherboard Revision
The Revision of the Motherboard from when the Silk Screen is placed on the Printed Circuit Board, including an Area for a Stamp or Mark for a specific Revision.

Motherboard Enhanced
The Chip Packages specified in the Silk Screening for a given location.

Non-Enhanced: CPU 6502, CD-ROM:342-0135, EF-ROM:342-0134, Character-ROM:341-0150
Enhanced: CPU 65C02, CD-ROM:342-0304, EF-ROM:342-0303, Character-ROM:341-0265

Enhanced ROMs
A 65C02 and Enhanced ROM's will get a YES in this Attribute, otherwise a NO will be seen.

Soldered RAM
RAM Chips Soldered directly to the Motherboard will get a YES in this Attribute, otherwise a NO will be seen.

Soldered IOU
IOU Chip Soldered directly to the Motherboard will get a YES in this Attribute, otherwise a NO will be seen.

Soldered MMU
MMU Chips Soldered directly to the Motherboard will get a YES in this Attribute, otherwise a NO will be seen.

Keyboard Attachment
Is the Keyboard attached to the PAN the Motherboard is connected to, or the upper CASE.
My Apple][ and ][+ have the Keyboard attached to the upper CASE, the early Apple ][e's have the Keyboards attached to the PAN. Later Apple ][e's have the Keyboards attached to the upper CASE like the Apple ]['s.

Keyboard Color
This is the lettering of the Key Caps, BLACK indicates Black Letters and the Darker Colored Keys, WHITE indicates the White Letters and the Lighter Colored Keys.

Keyboard Keys
This is the physical Key Mechanism I can literally hear a difference in the Sound that my White Keys make verses the Black Keys, when the Key is Struck.
The White ones have a more Hollow/Harsh sound, while the Black ones have a Solid/Softer sound.

RFI Case
The First Apple ][e's have a case that looks like the Apple ][ and ][+, at some point is the first couple years of production, a thinner lid with the Drop Down edges was released.
This Thinner Lid was a redesigned of the case to provide better EMF/RFI Shielding, IIRC.

AtariAge Spreadsheet, Started 16-FEB-2014