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The version of that book I remember came out long before there was GW-BASIC, in fact, it came out just before there were microcomputers and you might type them
by PaulHoule 4mo ago
The version of that book I remember came out long before there was GW-BASIC, in fact, it came out just before there were microcomputers and you might type them into a PDP-8/10/11. I bought a copy at the DEC store in the Mall of New Hampshire circa 1980.
Some of the games used features that were not supported on most microcomputer BASICs but you could type most of them into a TRS-80 or Apple ][ without changes and you could run all of them with minor modifications. Fun times!
- sbuttgereit 4mo agoYep. Ahl's book was first released in 1973... about 10 years before GW-BASIC.
- dlenski 4mo agoMy copy is at my parents’ house so I can't check the exact date now, but it's from the mid-to-late '80s and targets 8-bit home computer BASIC (e.g. Commodore 64) and IBM/Microsoft BASIC. So I presume there were several revisions or additions.
- leoc 4mo agoYes. As mentioned in https://github.com/maurymarkowitz/101-BASIC-Computer-Games https://github.com/maurymarkowitz/101-BASIC-Computer-Games the first, 1973 version targeting various minicomputer or large-system BASICs was entitled 101 BASIC Computer Games. The 1978 edition https://archive.org/details/basic-computer-games-microcomputer-edition_202211 https://archive.org/details/basic-computer-games-microcomput... , claiming compatibility with "Microsoft BASIC Version 3.0 or higher" and having various other chainges, is named BASIC Computer Games Microcomputer Edition. (One difference is that the game names in the old 1973 version all obey the classic six-letters-at-most, all-caps filename convention familiar from (non-BASIC) titles like EMACS, SHRDLU, ADVENT, and SCHEME.)
- PaulHoule 4mo agoThe PDP-11 under RSTS/E gave users a 64kb address space for code and another for data. Systems like the TRS-80 and the Apple ][ gave a "learn to code" experience that was similar and certainly inspired by the minicomputer experience: you didn't get as much RAM and some of the fancy features but you could so some graphics even if you had to PEEK and POKE. Very early microcomputer BASICs would fit in machines with 4k of RAM but as RAM became affordable almost all the machines evolved so you could fill out the whole address space. The IBM PC had a way user applications could address more than 64k that was half-baked because you were still stuck with 16 bit pointers, but practically I thought it was was really fun to write assembly programs that used the segments. I was thinking the other day how DEC's VAX died because the addressing modes (especially indirection) couldn't be implemented in a modern high-performance CPU and how the 64-bit Alpha came too late to stop VAX customers from leaving but way too early to attract general interest because hardly anyone could afford to fill out a 32-bit address space. Like Windows 95, NT and Linux were competing in 1995 and 32MB of RAM seemed like a lot then, it wasn't until the early 2000's that you could really afford more than 4GB...
- dlenski 4mo agoGot it, thanks. I believe that the version I have might be a later printing of the 1978 version, but actually the book I'm remembering most clearly was a later 1986 book by Ahl with a similar title of "Basic Computer Adventures" which has 10 longer adventure games… including an early version of Oregon trail. https://archive.org/details/basic_computer_adventures https://archive.org/details/basic_computer_adventures
- PaulHoule 4mo agoThere was this sequel too https://archive.org/details/More_BASIC_Computer_Games https://archive.org/details/More_BASIC_Computer_Games I don't think I ever saw source code for Oregon Trail As for text adventures those require fairly exotic programming techniques to pull off. Infocom had the Z machine interpreter written in assembly for many machines but Scott Adams made an interpreter which could be implemented in either BASIC or assembly.
- sbuttgereit 4mo agoThere were several editions. My copy (sitting on my bookshelf as I speak) was the '73 edition (though I think a later printing), but they did revise it including releasing it for the then prevalent home microcomputers. I first learned programming converting these things to run on my VIC-20 (and later C64). That earliest effort was prior to those later editions... and I'm kinda glad... I had to learn what different things actually meant and judge what was important and not.