Apple I

Homebrew EPROM card

Submitted by Tom Owad on May 25, 2004 - 2:57pm

Apple I - eprom card back

Apple I - eprom card front Apple I - eprom card back 2

Joe writes:

"I built an EPROM card to use in the 44 pin bus in my Apple 1 computer. It had on it two 2716 EPROM's. The 2716 was a 2k memory chip. I had a new monitor and a dis-assembler on the chips. To use this card I had to first unplug the two Apple Proms on the motherboard. As you can see I did not solder the sockets, but wire wrapped the card instead."

Computer Type: 
Apple I
Manufacturer: 
Apple

44 Pin Bus Advertisement

Submitted by Tom Owad on May 25, 2004 - 2:52pm

This advertisement appeared in:

Computer Type: 
Apple I
Manufacturer: 
Apple

44 Pin Bus

Submitted by Tom Owad on May 25, 2004 - 2:43pm

The 44 Pin Bus Motherboard connects to the 44 pin edge connector on the Apple I and provides ten slots. Joe cut the board down to three slots due to space limitations in the cabinet.

Computer Type: 
Apple I
Manufacturer: 
Apple

The Cassette and its Interface

Submitted by Tom Owad on May 22, 2004 - 6:55pm

Apple I BASIC cassette

Apple I cassette interface front Apple I cassette interface back

Apple I recorder

Entering data by hand is a slow and cumbersome process. Storing the code on some sort of media, even if that media is merely a cassette tape, is far more efficient. As a consequence, the Apple-1 Cassette Interface was a popular add-on. Many programs were available from Apple on cassette, such as BASIC, Dis-Assembler, Blackjack, Hamurabi, and Luner Lander.

Computer Type: 
Apple I
Manufacturer: 
Apple

Motherboard Close-ups

Submitted by Tom Owad on May 22, 2004 - 6:38pm

Apple I - 6800

The 6800 area of the board.

Joes tell us, "If I remember right, you pulled the 6502 chip and put in the 6800 cpu and all the parts and you had an Apple I based on the 6800 cpu instead of the 6502 cpu. I also believe that there was a law suit by Motorola who had the 6800 chip because MOS Tech who came out with the 6502 chip were all engineers who left Motorola and helped on the 6800 cpu and the 6502 cpu could use all the instructions that the 6800 had and was faster."

Computer Type: 
Apple I
Manufacturer: 
Apple

Briefcase Apple I

Submitted by Tom Owad on May 22, 2004 - 5:56pm

Back in 1977, Joe stored his Apple 1 in the below pictured briefcase. The transformer and main boards were mounted and the keyboard was also stored inside. All you had to do was pick up the briefcase and your monitor (TV) and you had a portable computer that could go anywhere.

Computer Type: 
Apple I
Manufacturer: 
Apple

Assembly

Submitted by Tom Owad on May 22, 2004 - 5:46pm

With every component coming from a different manufacturer, it was impossible to assemble the entire Apple I all at once. Joe spread everything out on a work desk in the basement, and assembled the system as the pieces came in.

Computer Type: 
Apple I
Manufacturer: 
Apple

Bill of Sale

Submitted by Tom Owad on May 22, 2004 - 5:18pm

 

Computer Type: 
Apple I
Manufacturer: 
Apple

Edmonds' Apple I Overview

Submitted by Tom Owad on May 22, 2004 - 5:06pm

Robert H. Edmonds 565 Bellevue Ave. #706 Oakland, CA 94610

Computer Type: 
Apple I
Manufacturer: 
Apple

Letters from Robert Edmonds

Submitted by Tom Owad on May 22, 2004 - 5:04pm

August 3, 1977

Dear Joe,
I have your two letters, but I don't get time often enough
to answer as soon as would be nice. Anyhow I've reached a pause
stage in my writing and can put my mind back on computers for a

Computer Type: 
Apple I
Manufacturer: 
Apple

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