| 16K RAM Approved; New Interface | Federal Communications Commission (FCC) approved Sinclair’s 16K RAM for the U.S. market. C.A.I. Instruments has completed work on three interfaces. | Sinclair ZX80 |
| Basic Salary Scheduling | Calculate salaries that increment on a straight-line basis. | Sinclair ZX80, Type-in program |
| Bubble Sort Routine | Sorts numbers into ascending order. | Sinclair ZX80, Type-in program |
| Chart Your Biorhythms | Program for 8K ROM machines graphically displays your emotional, intellectual and physical cycles. | Sinclair ZX80, Type-in program |
| Computer Models | Programming tutorial on calculating buinsess models wide variety of cases. | Sinclair ZX80, Type-in program |
| Dear Editor | Letters asking about Canadian suppliers; problems entering programs; interference on TVs; tape recorders. | |
| How Many Bytes to the Line? | Subroutine determines the exact number of bytes used for each line of program instruction as well as an entire program. | Sinclair ZX80, Type-in program |
| Interface to the Real World | Add an 8-bit latch to the ZX80 or MicroAce, mapped to 3000H (12288). Includes schematic. | MicroAce, Sinclair ZX80 |
| Light Control Interface | Interface Technology will adapt “The Microcommander” to the Sinclair ZX80. | Sinclair ZX80 |
| Lights of the City | This program uses the 8K ROM’s graphics and animation capabilities to generate an ever-changing video pattern like a growing city. | Sinclair ZX80, Type-in program |
| Machine Compatibility | A beginner wrote to ask: All of the following computers have the designation 80 — ZX80, Z80, Z80A, TRS-80. Are programs or software usable between each of these computers? Also there is a Z80 Softcard to apply Z80 programs to the Apple II. Is it reversible? | Sinclair ZX80 |
| Memory Window | Display 16 consecutive bytes of memory in hex, decimal and character format. | Sinclair ZX80, Type-in program |
| New Product Updates (Syntax v2 n1) | Prestodigitizer requires 8K ROM; Cognivox requires 16K RAM; MicroPeripheral modem held up. | Sinclair ZX80 |
| REM Statements | REM statements can be useful tools for beginning programmers, REM stands for REMark. You can also think of it as REMinder or REMember. The computer does not execute REM statements. It will ignore anything you write after REM in any line. Use REM to write notes to yourself about the functions of various parts of | Sinclair ZX80 |
