There's a RAM shortage at the moment. RAM, as in random access memory. The memory computer keeps immediately at hand, so it can perform tasks quickly. How can that be? Well, as with so much these days ...

$551 billion in total revenue is the projected figure that memory manufacturers will make this year, dwarfing the $181.1b Nvidia made in the last 12 months.

PC builders have watched memory prices rise far faster than expected, raising questions about what is driving the market and where it goes next.