On the 1st May 1964 BASIC (Beginner’s All-purpose Symbolic Instruction Code) programming language was initiated when at 4 a.m. Professor John G. Kemeny and student programmer Thomas E. Kurtz (who later became a professor) simultaneously typed RUN on neighbouring terminals in the basement hall of Dartmouth College in New Hampshire. When they got back the correct answers to their programs, BASIC was officially born. This innovation implemented the concept of time-sharing on computer systems and set in motion a chain of events which would lead to computers becoming available to all.
At the time, computers were generally used by science and mathematics students, and required custom written software. Data and programs were often stored on punch-cards and paper tape [Footnote 1], with magnetic tape being introduced in 1951. During the 1970s there was rapid growth in different flavours of BASIC, additional functions were added with extra structuring keywords and advanced floating-point operation features.
With the introduction of 8-bit home computing, from the ZX-81, Commodore VIC-20, ZX Spectrum, Commodore 64, BBC Micro & Acorn Electron, Amstrad CPC 464 and other models and makes of the 1980s, versions of BASIC became widespread and were often integrated into the computer’s firmware (ROM chip) along with an interpreter and operating system commands. Cassette tapes were used for data storage and retrieval initially and later floppy disks.
Upon powering on a home micro an interpreter prompt would be displayed, this enable writing BASIC programs or executing commands built into that hardware platform’s operating system. For example, to load a word processor package (e.g., Tasword) one would type LOAD “” and press Enter. Then play the tape. Friends with attached Interface 1 + Microdrives or floppy disks with the later ZX Spectrum +3 (Amstrad) would be able to load data at a much faster rate than cassette tape.
With the growth of 8-bit home computing, complete source code for computer games and other programs were published in magazines and books. In the UK the BBC embarked upon a Computer Literacy Project using BBC BASIC. Over the years BASIC has continued to develop, notably with Microsoft’s Visual Basic. Some teaching guides such as the AQA A/AS Level Computing books still provide examples in Microsoft Visual Basic, however this version of BASIC is closer in structure to Python or Pascal rather than 8-bit computer BASIC. Continue reading