| Editor's Forum |
For those readers that have Internet access, Timo Salmi of Findland has started an Anon-FTP QL Server, garbo.uwasa.fi (128.214.81.1). Garbo is already an MS-DOS server but Timo has set aside a section for the QL. To start things off, he has uploaded a number of his programs. I have uploaded back issues of the QHJ |
Sinclair QL |
| Fletcher's Checksum |
The May issue of “Dr Dobb’s Journal” focused on data communications and included articles on checksums. One article covered Fletcher’s Checksum, an algorithm faster than CRC and just as reliable as CRC, except it handles smaller blocks than CRC. CRC checksum will catch a 2 bit error in a 65,535 bit message, where as Fetcher |
Sinclair QL |
| Infix to Postfix |
In the March 1992 issue of “The C Users Journal”, Rex Jaeschke has a column called “Doctor C’s Pointers”. He has been running a series of articles on data structures in C. In one of the column on stacks, he presents a infix notation to postfix notation translator/convertor. Infix notation is what is used in |
Sinclair QL |
| New Public Domain/Freeware QL Software |
In the past few months I have recieved some disks containing public domain and Freeware software for the QL. The disks came from Howard Clase of Canada, and Franz Herrmann of Germany. For the record, Freeware software is software that is copyright by the author, but everyone is free to copy and distribute the software. |
Sinclair QL |
| Random Dot Stereograms |
Random Dot Stereograms (RDS) can give the illusion of depth if you have binocular vision. Instead of the usual pair of stereoscopic pictures, a single ‘picture’ is made with several swaths side by side, interleaved so as to provide the brain with depth clues when you gaze at the dots in a certain way. It |
Sinclair QL |
| Software Engineering and OOPS on the QL? |
Through subscriptions at work and home, I read a number of computer magazines, including Dr. Dobb’s Journal (DDJ), C Users Journal, Unix Review, Sun World, and Info-World. These magazines discuss programming, programming trends, and programming utilities/software. Two of the leading topics of discussions have been Object Oriented Programming (OOP) and Software Engineering, which includes Computer |
Sinclair QL |
