High Level Languages & the IBM 360 Series - Computerphile

TL;DR

The speaker discusses the user-friendliness of the IBM 360 series, the use of higher-level languages, and the importance of naming things in programming.

Transcript

i've spoken to people who have been much more involved with the 360 series than i have i'm i'm a complete charlatan i've written a few fortran programs that ran on top of system 360. but people who i've been in contact with now say we admired it a lot for its achievements but it was not not a user-friendly or programmer friendly environment i've no... Read More

Key Insights

• 🖤 The IBM 360 series was highly regarded for its achievements but lacked user-friendliness and programmer-friendly features.
• ✋ Higher-level languages like ALGOL 68 and FORTRAN provided better syntax and constructs for programming, especially for if statements, case statements, and array calculations.
• 👨‍💻 Naming things in programming, such as objects, fields, and components, is essential for code organization, accuracy, and understanding of complex programs.

Questions & Answers

Q: Why was the IBM 360 series not considered user-friendly or programmer-friendly?

According to people who have worked with it, the IBM 360 series lacked ease of use and programming friendliness due to its assembler programming language and challenging array calculations. It was a mishmash of good and awful aspects.

Q: How did higher-level languages like ALGOL 68 and FORTRAN help improve productivity?

Higher-level languages provided syntax and constructs for easier programming of if and case statements, as well as simplified array calculations. FORTRAN, in particular, could be effective for system programming when no other option was available.

Q: Why was naming things important in programming?

Giving objects, fields, and components names allows programmers to easily refer to them and accurately determine their positions in memory. It helps in organizing code, preventing off-by-one errors, and understanding the structure of complex programs.

Q: What did Ken Thompson learn about naming things in early C programming?

Ken Thompson discovered that naming things, especially with structures, was crucial in early C programming. By giving fields names and letting the compiler handle the byte displacement, programmers could avoid mistakes and improve code accuracy.

Summary & Key Takeaways

• The IBM 360 series was admired for its achievements but was not considered user-friendly or programmer-friendly.

• The speaker suggests that using a higher-level language, such as ALGOL 68 or FORTRAN, could have increased productivity.

• The use of higher-level languages allowed for easier programming of if statements, case statements, and array calculations.

• Ken Thompson, one of the early programmers, initially developed an interpreter for a high-level language called B before working on a FORTRAN compiler.