Operations Manual

Apple I - Operations Manual cover Apple I - New Operations Manual cover

The manual consists of about 12 pages plus the warranty page.

The Apple 1 computer is a complete microprocessor system, consisting of a 6502 microprocessor and support hardware, integral video display, dynamic memory and refresh hardware and fully regulated power supplies. It has a resident system monitor software, enabling the user to display, write, examine, debug and run programs.

The video section contained its own memory there by leaving the entire ram for user programs. The output format was 40 characters a line. There were 24 lines per page, it also had auto scrolling.

The board came with 4K of Ram from Apple company and you could add another 4K giving you 8K on the board. The memory used was dynamic memory, 16pin.

The system was fully expandable to 65K of memory via the edge connector. The Apple 1 had a 44-pin buss, which had all the clocks, voltages, address lines and data lines running to it.

The Apple 1 used a single crystal oscillator to get all of its timing signals for the entire computer. There was also a breadboard area for the user to add sockets for other chips, piaís etc or what ever he wanted to add to the Apple 1 system. Maybe some people did not know this but you could get rid of the 6502 microprocessor and put in a 6800 microprocessor if you wanted to. You had to add some components, maybe this is why the breadboard area was included also?

The Apple 1 computer came fully assembled. All you needed to do to get up and running was get ASCII keyboard, a video monitor and two AC transformers, one supplying 8 to 10 volts @ 3 amps and one at 28 volts @ 1 amp. After hooking up everything there was a test program to check out the hookup.

Section II of the manual was on using the system monitor, which was in two Proms at FF00 to FFFF. To enter the monitor you hit reset and you got a backslash and return. This was not a dis-assembler, this monitor just showed the value at that memory location that you was looking at or you could look at blocks of memory if you wanted to. All together there was 4 pages on the system monitor including a listing of the monitor with another 4 pages of schematics of the Apple 1 system.

The warranty for the Apple 1 computer was for 30 days from the date of purchase. Not a long period of time when you look at what you can get today but when you consider that it was back in 1976 era, then the Apple 1 was one of the kings of that time.

Computer Type: