| A Package From England, or, How I got a real ZX Printer | Details on ordering a printer from WH Smith and adapting for US use. | |
| Adding a Joystick to Your ZX81 | Wire a joystick to map to the arrow keys. | Sinclair ZX81, Timex/Sinclair 1000 |
| Adventure A | Adventure is not for impatient or unimaginative players. It has no bombs, no graphics, and no split-second decisions. It is an intellectual game requiring thought rather than reflexes. | Sinclair ZX81 |
| Annuity | Program calculates the payments needed to pay off a loan or how many years it takes to pay off a loan at a fixed payment. | Sinclair ZX81, Type-in program |
| Byte-Back Modem Shipments Delayed | Byte-Back will ship no modems for 4-6 weeks. | |
| Dear Editor | Cassette recorders; speed with 16K; jumping to program lines quickly; handling negative numbers; wirewrap edge connectors; replacing cassette jacks; techniques for saving memory variable space. | Sinclair ZX81, Type-in program |
| Exchanging Registers, Part 6 | In addition to the eight registers A,F,B,C,D,E,H and L covered in an earlier article, the Z80 (central processing unit in your ZX80/81) has a twin set of alternate registers. | Sinclair ZX80, Sinclair ZX81 |
| Expanding Existing 16K Programs | If you upgraded to 48K RAM for your ZX81, you may think it simple to add a few program lines and enlarge the variable arrays in existing 16K RAM programs to utilize the increased memory capacity. | Sinclair ZX81, Type-in program |
| Hardware Preview: RD8100 System | RD8100 motherboards and modules are building blocks that plug onto your computer or together to create instant systems. | Sinclair ZX81 |
| Line Renumbering | Two approaches to renumbering program lines, one in Basic, the other in machine code. | Sinclair ZX81, Type-in program |
| Loading Hexadecimal Listings | This program converts the hex and stores it into a space explicitly for it. | Sinclair ZX81, Type-in program |
| New Prices from CAI | CAI Instruments announced new prices for their ZX peripherals. | |
| New Product Announcement (Syntax v3 n6) | ZX FORTH, battery back-up units. | Sinclair ZX81 |
| Numbers Held Inexactly on the ZX81, Part 4 | The ZX81 doesn’t hold simple decimals like .5 & .25 exactly. | Sinclair ZX81, Timex/Sinclair 1000, Type-in program |
| Program Improvements | Improvements to READ-DATA-RESTORE, Flower Plot, Income Tax program. | Sinclair ZX81, Type-in program |
| Random Pixel Plot | Two line program to randomly plots points. | Sinclair ZX81, Type-in program |
| Report from the 3rd ZX Microfair | The third ZX Microfair was held 30 April-1 May 1982 in London. Besides Sinclair’s new Spectrum, we saw some new ZX81 products. | |
| Screen Background for Games | A dark or solid background often gives a better effect for printing or plotting in games. With an 8K ROM and 16K RAM, an almost instant background is possible in BASIC. | Sinclair ZX81, Type-in program |
| Sinclair Drops US ZX Prices as of 1 June | Sinclair Research lowers the prices on their ZX products in the US 1 June 1982, according to Margaret Bruzelius of Sinclair. New prices: Assembled ZX81, $99.95; ZX81 kit, $79.95; 16K RAM pack, $49.95. ZX81 owners will receive a new software brochure this month. ZX80 owners should write to receive a copy. | Sinclair ZX81 |
| Spectrum Shown at London ZX Fair | SYNTAX editors saw Sinclair’s Spectrum at the 3rd ZX Microfair in London (see May 82). | Sinclair ZX Spectrum |
| Syntax Errors | Using Program 1 in Frank O’Hara’s Numbers Held Inexactly, Apr.82, 1E13 gives 172 17 132 231 42. | |
| The Sinclair ZX81 Programming for Real Applications | This book is aptly billed as being for people who want to get down to business with their ZX81s. | Sinclair ZX81, Timex/Sinclair 1000 |
| UK Products Listing | Want to know first-hand what’s happening with British ZX hardware, software and publications? We have a limited number of official show guides from the 3rd ZX Microfair, held 30 April-1 May in London. | |
| Users' Groups | | |
