Re: New book about the Apple 1

["Vince Briel" <vbriel@comcast.net>]

The video speed of the Apple 1 is 60 characters per second. The screen is 
40x24 upper case only and the Apple 1 used 2513 character generator ROM for 
the character set. The replica 1 emulates the video section using a 
microcontroller, flip-flop and shiftregister (3 IC's).

While the inspiration for the Apple II may have come from the Apple 1, they 
are completely different computers. No addressable video memory, 1 slot 
(usually used for the cassette interface), B & W scrolling text only display 
with no ability for graphics without an add-on board, no BASIC built in ROM, 
only a simple monitor program and no add-on hardware from Apple except the 
cassette interface.

Vince
-- 
Replica 1 the Apple 1 clone
http://home.comcast.net/~vbriel/index.htm
"Bryan Parkoff" <nospam@nospam.com> wrote in message 
news:81ZFd.17816$iC4.2082@newssvr30.news.prodigy.com...
> Vince,
>
>    You have replicaed Apple I from original.  One question -- did you 
> replica video to be exact identical?  Is it only 45 baud per second?  When 
> you type characters, each character appear in the screen at 45 baud per 
> second.  It is much slower than Apple II.
>    It is what I am looking for.  If it is already had one, do you have 
> replica Apple I left for sale?
>
> Bryan Parkoff
>
> "Vince Briel" <vbriel@comcast.net> wrote in message 
> 8fmdnXcZfIBmXXrcRVn-pg@comcast.com">news:8fmdnXcZfIBmXXrcRVn-pg@comcast.com...
>> Hey everybody,
>>
>> There is a new book coming out about building a replica apple 1 (not 
>> written by me). It covers all the hardware and design of the replica 
>> including schematics and board example.
>>
>> And for all the Woz fans, he wrote the Forward. Here's the link for more 
>> info:
>>
>> http://www.oreilly.com/catalog/193183640X/index.html
>>
>> Cheers,
>>
>> Vince
>>
>> -- 
>> Replica 1 the Apple 1 clone
>> http://home.comcast.net/~vbriel/index.htm
>>
>
>