|
ZX
Spectrum |
BBC
Micro
(Model A) |
VIC
20 |
Atari
400 |
TI99/A |
TRS-80
Colour |
Basic
unit inc. VAT |
£125 |
£300 |
£190 |
£345 |
£300 |
£450 |
Standard
RAM |
16K |
16K |
5K |
16K |
16K |
16K |
Standard
RAM available using high-res graphics |
9K |
3K |
N/A |
7K |
14K
* |
10K |
Maximum
RAM |
48K |
32K |
29K |
16K |
48K |
32K |
Sound
generator |
 |
 |
 |
 |
 |
 |
Colours
available |
8 |
8 |
16 |
16 |
16 |
8 |
Maximum
colours on screen at same time |
8 |
4 |
16 |
4 |
16 |
8 |
Flash |
 |
 |
 |
 |
 |
 |
BRIGHT
or equivalent |
 |
 |
 |
 |
 |
 |
High-res
graphics (>40000 pixels) available for PLOT and DRAW |
 |
 |
 |
 |
 |
 |
User-definable
graphics |
 |
 |
 |
 |
 |
 |
Full
upper/lower case ASCII |
 |
 |
 |
 |
 |
 |
User-definable
character set |
 |
 |
 |
 |
 |
 |
Screen
display (columns x rows) |
32x24 |
40x25 |
22x23 |
40x24 |
29x24 |
32x16 |
Auto-repeat
on all keys |
 |
 |
 |
 |
 |
 |
Cassette
interface for all normal recorders |
 |
 |
 |
 |
 |
 |
Baud
(data transfer) rate |
1500 |
1200 |
300 |
1200 |
450 |
1200 |
LOAD
and SAVE |
 |
 |
 |
 |
 |
 |
VERIFY |
 |
 |
 |
 |
 |
 |
MERGE |
 |
 |
 |
 |
 |
 |