By Scheck Zabinski, E. Michael Scheck, Linda Yakel
Explains tips to use the pc language uncomplicated to jot down basic courses for the Atari pcs
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Additional resources for ATARI for kids from 8 to 80
T PITF: ~; II OOCTIOO. Variable B$ can be up to 18 characters long. The LET is not needed. The PRINT is abbreviated. N$ is still in the Computer. B$ is displayed. Do you notice the new lines? Let's take another look at the program. We erase the screen by pressing the and press CIDtlTI) and (CLEAR) keys together. Now type commrn (RETURN). L. I ~~:; r 5 D IM l\I $ ( 9), B$ (1 8 ) 1. :; II 35 I:\-Ll ------------------------------------------------------------------------------------~. The original program had only three lines.
When a variable is given a new value, its old value is lost. 40 5 - 9 _______________________________________________________________ EXERCISES 1. Give one example for each of the two types of variables. 2. Now try this. Turn the Computer off and then back on. How will the Computer respond to each of the following instructions? INSTRUCTION COMPUTER'S RESPONSE " 3. Locate errors in the following statements. Some statements are correct. STATEMENTS ~ 20 READ X-V,! d. 25 DATA 5, L 35 g. 4~,-! ,' 4 4.
We didn't put a space into the quotes. We can add a space after UNITED or we can add a space before STATES. Let's add the space after UNITED. 1. Use the (CTRLl and rn keys to get back to line 20. 2. Use the (CTRLl and 8 keys to get to the end of UNITED. 3. Use the (CTRl) and (INSERT) keys to add the space, then press (RETURN ). 4. To display the two words, move the cursor (use the (CTRll and ning of the RUN statement and press (RETURN). m keys) to the begin- Did it work? The screen should now show.