LISTing Newsletter January 1991

Date: January 1991
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Articles

TitleDescriptionComputers
LIST TS1000.1 TapeTimex/Sinclair 1000
Long Division, Grade SixTimex/Sinclair 2068, Type-in program
Meeting Notes
Multiplication, Grade 6Timex/Sinclair 2068, Type-in program
The Logic Operator, NOTFor many of us, computer logic is a bit difficult to understand, and articles like the one reputed to be by Sharon Z. Aker in the July ’88 issue of UPDATE muddies the water more. On page 14, under the title of Priorty, the article states that NOT B<C is interpreted as (NOT B)>C. ThisTimex/Sinclair 1000, Timex/Sinclair 2068
Timex Logic, Part 1This series of articles is called Timex Logic rather than computer logic because not all computers treat and/or use logic as fully as the Timex computer can. Some of the logic operations described in this series cannot be used on many other computers, including one fruity one, widely pushed onto our public school systems. ThisTimex/Sinclair 1000, Timex/Sinclair 2068
Timex Logic, Part 2In the preceding chapter we learned that logic is number oriented, and that conditions which are TRUE are replaced by the computer with a logic value of 1, and conditions which are FALSE are replaced by a logic value of 0. Program lines with statements containing a single logic condition usually present no problem toTimex/Sinclair 1000, Timex/Sinclair 2068
Timex Logic, Part 3It has been said here before that the computer is a number oriented machine. Every thing that it does, it does by the manipulation of numbers. Basic is a language akin to English, devised solely for the benefit of us humans. The computer itself doesn’t need Basic, and early models of computers did not haveTimex/Sinclair 1000, Timex/Sinclair 2068