| [Rochester Institute of Technology offers two intensive computer courses for deaf adults...] | Rochester Institute of Technology offers two intensive computer courses for deaf adults in August. Contact Donald Beil, NTID Data Processing Dept., RIT, 1 Lomb Memorial Dr., Rochester, NY, 14623, 716/475-6373, voice or TTY. | |
| [The 8K ROM produces a different screen display than the 4K ROM.] | The 8K ROM produces a different screen display than the 4K ROM. SYNTAX will publish listings in 4K format, but we will print both 4K and 8K Syntactic Sums for programs that run in either machine. | Sinclair ZX80, Sinclair ZX81 |
| [These SYNTAX readers would like to hear...] | Readers from California and Texas. | Sinclair ZX80 |
| 4K Programs on 8K ROM | 8K ROM won't load 4K tapes. | Sinclair ZX80, Sinclair ZX81 |
| 4K ROM Listing - Initialization | Computer initialization routine in 4K ROM. | Sinclair ZX80 |
| 8K ROM Program Changes | Revisions to previous programs for 8K ROM. | Sinclair ZX80, Sinclair ZX81 |
| 8K Syntactic Sum | Modified version for 8K ROM. | Sinclair ZX80, Sinclair ZX81, Type-in program |
| All-Purpose Beeper | Circuit to emit a "beep" every time your ZX80 or MicroAce reads from or writes to a selected memory address. | Sinclair ZX80 |
| Beginners' Computing Magazine | OnComputing changes its name to Popular Computing. | |
| CAI Update | CAI Instruments is almost ready with their Widget series peripherals for ZX80s and MicroAces. | Sinclair ZX80 |
| Dear Editor | Letters about new 8K ROM features; keyboard problems; video blanking; building additional RAM; interfacing to real world; improvements to bar graphics program; printing statements. | MicroAce, Sinclair ZX80 |
| EZUG Newsletter | The Educational ZX80/1 Users' Group (EZUG) publishes a newsletter each month for ZX80 users. | Sinclair ZX80, Sinclair ZX81 |
| Inverse Cryptology | Challenging code breaking game for 2 uses 4K ROM and 1K RAM. | Sinclair ZX80, Type-in program |
| Keyboard Beeper | Review of Burnett Electronics' keyboard beeper. | Sinclair ZX80 |
| Machine Code Programming - Multiplication and Division | Multiplication and division require more thought and attention to detail. | Sinclair ZX80 |
| Matrix Drawing | Draws characters on a 13x20 matrix. | Sinclair ZX80, Type-in program |
| Microperipheral Abandons Modem | Gave up plans to produce ZX80 modems because they had to add many hardware features not in the ZX80. Modem would have cost more than the original computer. | Sinclair ZX80 |
| Modifying Hex Monitor for 4K | Hex Monitor (May 81) stores ML programs without shielding them from BASIC. These changes load ML to reserved space. | Sinclair ZX80 |
| News From MicroAce | MicroAce and ZX80 owners who want the flicker-free feature of the ZX81 can get it with an add-on board from MicroAce. The board contains only 6-7 chips and solders onto your PC board. The cover fits over the machine with the board installed, although the fit is a little tight on a ZX80. | MicroAce, Sinclair ZX80 |
| PEEK, POKE & CHR$ for Beginners (4K) | Explanation of the commands and functions. | Sinclair ZX80, Type-in program |
| Placing USR Calls in 4K, 8K | Differences between both ROMs and machine code locations. | Sinclair ZX80 |
| Programmed Responses - Latin Roots | Drill for students of Latin and Greek. | Sinclair ZX80, Type-in program |
| Programming Language Terminology | Definition of terms. | Sinclair ZX80 |
| Syntax Errors | Errors with Martin Iron's line renumbering program. | Sinclair ZX80 |
| ZX80 Prestel Model | Model of the British Prestel data base tree structure. It can be used with your own data for display to show how Prestel data is accessed. | Sinclair ZX80, Type-in program |
