 Paul Taylor of the Financial Times found the ZX81 to be " a powerful and flexible little computer ideally suited as a fun introduction to the mysteries of home computing " but cautioned readers about its limitations . It lacked ready @-@ made software , the keyboard was not easy to use , it did not have sufficiently advanced graphics to be able to replicate arcade @-@ style games and its built @-@ in memory was inadequate . Even so , he suggested , " the ZX81 is a unique British product , part toy , part puzzle , part learning tool and I think that , provided one accepts its limitations and recognises that any computer will only do what it is told to do , it is good value as an introduction to the hobby of home computing . " 
