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Old 23rd September, 2009, 11:39 AM
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Quote:
Originally Posted by Áedán View Post
On the BBC, although the machine had 32K of RAM, some 10K of it disappeared to the graphical display, and the OS took a little for various buffers. Thus Elite had to run completely within less than 22K! It also used a split mode display, where the upper monochrome part was in one hardware configuration, and the lower colour part was in another.

The Spectrum, due to some interesting choices made by Sinclair, only used 4K of memory for it's display. Thus the 48K spectrum had closer to 44K of free memory.
One of my friends had a Spectrum 128 and man the sound of that yamaha sc was so much better..

"The Spectrum 128 (code named Derby) is the successor of the Spectrum +. It was made just before Amstrad bought the right to use the Sinclair name in computer products. So it can be regarded as the last "real Sinclair Spectrum".

The 128 is the first real evolution of the old Spectrum. It has a lot of new features: 128kb RAM (two 64kb banks), a new sound chip (Yamaha AY-3-8912), RS232/Midi and video RGB outputs.

The Spectrum displays a menu when it is switched on:
- "Tape Loader" to run programs on tape,
- "Calculator" to enter operations without typing PRINT before,
- "Tape Tester" to test the input level of the tape recorder,
- "BASIC 48" and "BASIC 128".

The Spectrum 128 can use two versions of BASIC: BASIC 48 is just for the compatibility with the previous models and can't use the new features.
The Basic 128 mode has a full screen editor and the user can enter the Basic statements letter by letter instead of pressing key combinations. It has new keywords to use the extended memory as a RAM disk (unless bank-switching routines are utilized) and to handle the new sound chip and the MIDI out socket. "
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