The operating system ( OS) of the Commodore 64 is CBM BASIC version 2, which has 38911 BASIC bytes ( chars) free in its memory ( RAM). The operating system and BASIC was stored on a ROM (Read Only Memory) chip.Īnother overview is the article C64-Commands.
On Commodore systems BASIC is not only used as a programming language, but also as operating "shell", or environment. There are several sub-dialects of which BASIC Version 2.0 is the most popular.
#Basic programming language commands series#
A series of different versions followed, all known as CBM-BASIC.
2.2 Overview of BASIC Version 3.5 Commands.2.1 Overview of BASIC Version 2.0 (second release) Commands.This article discusses standard Commodore BASIC. That changed when other vendors introduced extended versions of BASIC, such as Super BASIC. This led to C64 programs often being filled with POKE statements that were difficult to understand. Dijkstra criticized the 1975 version of BASIC for its lack of structure: "It is practically impossible to teach good programming to students that have had a prior exposure to BASIC." But even more than 50 years later, BASIC is still in widespread use thanks to its user-friendliness.Ĭommodore 64 BASIC was based on the 1970s Microsoft BASIC standard, but it lacked many simple facilities, forcing users to PEEK and POKE memory locations to perform operations such as changing screen colors. Their goal was to create an easy-to-use language, so that "all students should be able to use a computer." This popularism later led to BASIC becoming the standard programming language for home micros in the 1970s and 80s, including the whole Commodore range.Ĭritics complained about BASIC's oversimplicity. BASIC was invented in 1964 by two professors at Dartmouth College in the US: John Kemeny and Thomas Kurtz.
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