| Editor's Notes |
These computers always have a surprise for you. Or at least the programs do. I thought the last QZX was all fixed up with templates so that all I had to do was add the articles. Well when it printed out the headers and footers were missing. I still have not the foggiest notion of |
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| QZX Friends |
KF5GG – George renewed and sent a contribution to the postage fund. KHAFM Raymond renewed and sent a contribution to postage fund. James Powell renewed and sent a contribution to the postage fund. Arnold Nieuwenhoff renewed and did not sent a contribution to the postage fund. He sent something just as good, a book of |
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| ZX81 RAM Extension |
I am not too sure why anybody would want to use this circuit to extend their RAM when QZX has been offering a free 16 K RAM box for several months now, but the circuit on the following page can be used to add just the amount of RAM that you wish and it is |
Timex/Sinclair 1000 |
| ZX81 RAM Test |
The short program at the end of this article can be used to test the RAM of you ZX81 type Sinclair computer. It does a quite thorough check of all the RAM installed in your system except for that being used by the program. Of course if the program is running correctly that by itself |
Timex/Sinclair 1000 |
