I later used a Lisa 2/10 model which had an additional 10M byte internal Widget hard drive which gave me a total of 15M bytes of hard drive storage. I originally used a Lisa 2/5 model which contained 1M byte of RAM, an internal 400K 3.5" Sony floppy drive, and an external 5M byte ProFile hard drive (yes, 5M as in mega bytes was considered a rather large drive in those days). Macintosh development in the early days (circa 1983-1985) was done using the Apple Lisa computer and its Lisa Workshop development environment. SOFTWARE DEVELOPMENT USING THE LISA WORKSHOP ENVIRONMENT The Macintosh's rich ROM-based software toolbox in a 64K byte ROM along with the machine's small footprint and superbly clear screen display made the Macintosh a wonderful application platform. The original Macintosh (called the "Macintosh 128" since it had 128K bytes of memory) provided a fascinating development and application environment which I enjoyed immensely. I and another individual designed the program, I implemented it. This application was written in Lisa Pascal and contained around 50,000 lines. (PPP or P3 = Programs for Professional People) which developed a new Macintosh application for the stock market named The Investor. This paper was written as my contribution to the Macintosh's 20th anniversary celebrations in February 2004.ĭuring this time I worked for a small company in Wichita Kansas called PPP Inc. This commentary contains my recollections about developing 3rd party software for the Apple Macintosh computer during the years 1984 to 1986. Some Comments about Developing Applications for the Apple Macintosh 128 Computer from a 20 Year Perspective OVERVIEW
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