An Introduction to Computer Software

Cover An Introduction to Computer Software
An Introduction to Computer Software
David N David Norman Ness
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In computer languages a similar phenomenon arises. Some languages which are quite easy to read may be very difficult to write. For example, the statement "ADD PAY TO TOTAL" may seem clear and easy to write, but if the language does not allow the statement "ADD PAY TO SUM" (because "SUM" is a word reserved for use only in certain contexts), then it may prove to be difficult to write.
A second important consideration with respect to ease of use is the sophistication of the user. Naive users and s
...ophisticated users need and want different things. A naive user may well want a language where statements are self-explanatory. This helps him remember what statements to use, and helps quickly recall the purpose of each statement. Self- explamatory statements are usually somewhat longer than would otherwise be necessary. Since the naive user usually is not (or should not) be attacking huge problems this verbosity is not very painful.
- 8 - by our translation procedure. In a similar fashion, a good machine language programmer is usually able to write a program which requires less space and runs more quickly than an equivalent program generated by the FORTRAN compiler.


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