Ann Zevnik

Articles (16)

TitleAuthor(s)PublicationDate
4K/8K ROM Switch
Review of the ROM switch kit from Marex Electronics.
SyntaxMarch 1982
Analogies, Logical Reasoning
Analogies and Logical Reasoning, two separate programs, pleasantly teach important concepts in logical thought.
SyntaxNovember 1983
Beginners’ BASIC: More on INKEYS
Tutorial on using INKEY$ in 8K ZX81 BASIC programs, covering two techniques: stopping execution if any key is pressed (using...
Ann ZevnikSyntaxJuly 1982
Hardware Hints
Two hardware tips: an overheating fix using a steel block on the case (reprinted from EZUG Newsletter Jan/Feb 82), and...
Ann ZevnikSyntaxMarch 1982
Hardware Review: Marex ROM Switch
Review of a 4K/8K ROM switch for the ZX80 from Marex Electronics, Valley City OH. Available in kit or assembled...
Ann ZevnikSyntaxMarch 1982
News, New Products
News column covering the Rosetta Stone Award (Ian Logan wins first prize for ZX80 ROM disassembly), the Timex license to...
Ann ZevnikSyntaxMarch 1982
News, New Products
News section covering: Timex plans for TS1000 retail in major department stores with 14 software titles; Mindware introducing the MW100...
Ann ZevnikSyntaxJuly 1982
News: Sinclair News and New Products
News column covering: Sinclair ZX80 PCBs sold out; ZX printer still in FCC approval; mismarked cassette tape issue; Mindware Co....
Ann ZevnikSyntaxApril 1982
Program Corrections
Corrections to programs from previous issues: corrected Blackjack listing (Clifford Efaw), Hex Math 8K fix (Leo Morgan), Flags Register article...
Ann ZevnikSyntaxApril 1982
Program Corrections and Improvements
Corrections to previously published programs: Phone Number Word Generator (Lawrence Souder), simultaneous equation solver (Lori Olson), Digital Clock improvements (Tom...
Ann ZevnikSyntaxMarch 1982
Programmable Moving Display
At last you can know the secret of true flicker-free continuous display through software! If you’re a 4K ROM user...
SyntaxJanuary 1982
Technical Details for ZX Printing
In-depth technical reference covering the ZX printer interface: PR-BUFF signal, Z80 I/O port address (OOFBH), data bit meanings, stylus/belt mechanism,...
Ann ZevnikSyntaxMarch 1982
Three How-Tos
How to Market Your Timex/Sinclair Software; 1984 Programmer’s Market; 1983 Software Writer’s Market.
SyntaxApril 1984
Users’ Groups
Listing of newly formed ZX80/81 user groups in Los Angeles CA, San Francisco/San Jose CA, Seattle/Tacoma/Everett WA (Dan Gallery), Denver...
Ann ZevnikSyntaxMarch 1982
Users’ Groups
Listing of ZX80/81 user groups, including Seattle (Sinclair Program Exchange), Pacifica CA, Pomona CA, Houston TX, Idaho Falls ID, Prince...
Ann ZevnikSyntaxApril 1982
Users’ Groups
Listing of recently heard-from ZX80/81 user groups in Central Virginia, Pittsburgh PA, North Suncoast FL, Atlanta GA, Milwaukee WI, Chattanooga...
Ann ZevnikSyntaxJuly 1982
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