Zx spectrum 128k

A place to discuss the ZX80's and ZX81's younger brother - the Sinclair ZX Spectrum
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Crayon21
Posts: 54
Joined: Sun Nov 04, 2018 2:33 am

Zx spectrum 128k

Post by Crayon21 » Tue Mar 12, 2019 8:16 pm

is there any noticeable difference between the 128k model and the 48K version, other than basic?
zx81: great yet flawed
Zx spectrum: masterpiece that keeps on giving

(wish it weren't so expensive) :o

McKlaud
Posts: 229
Joined: Tue Dec 19, 2017 10:02 pm
Location: St Albans, UK

Re: Zx spectrum 128k

Post by McKlaud » Tue Mar 12, 2019 9:57 pm

There are some "noticeable" differences as follows:

1. 128KB RAM vs 48KB RAM
2. different timings
3. embedded AY PSG chip on board
4. RGB video output on board
5. second video memory bank

...
Claudius
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1024MAK
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Location: Looking forward to summer in Somerset, UK...

Re: Zx spectrum 128k

Post by 1024MAK » Thu Mar 14, 2019 1:09 pm

Actually, apart from a small number of extra commands, the BASIC itself is the same. The 128K BASIC however uses a full screen editor instead of a line editor. This new editor accepts command words and function words as normal typed in, letter by letter entry rather than the 16k/48k keyword entry system.

Although if you wish, you can go back to 16k/48k BASIC and line editor if you want.

Mark

Crayon21
Posts: 54
Joined: Sun Nov 04, 2018 2:33 am

Re: Zx spectrum 128k

Post by Crayon21 » Thu Mar 14, 2019 8:20 pm

1024MAK wrote:
Thu Mar 14, 2019 1:09 pm
Actually, apart from a small number of extra commands, the BASIC itself is the same. The 128K BASIC however uses a full screen editor instead of a line editor. This new editor accepts command words and function words as normal typed in, letter by letter entry rather than the 16k/48k keyword entry system.

Although if you wish, you can go back to 16k/48k BASIC and line editor if you want.

Mark
it's a lot smoother than 48k basic. i love that
zx81: great yet flawed
Zx spectrum: masterpiece that keeps on giving

(wish it weren't so expensive) :o

Crayon21
Posts: 54
Joined: Sun Nov 04, 2018 2:33 am

Re: Zx spectrum 128k

Post by Crayon21 » Thu Mar 21, 2019 10:56 pm

are there any programming books on the 128?
zx81: great yet flawed
Zx spectrum: masterpiece that keeps on giving

(wish it weren't so expensive) :o

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