Cross bishop to steer video game machine (4)

I believe the answer is:

xbox

I'm a little stuck... Click here to teach me more about this clue!

'video game machine' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'cross bishop to steer' is the wordplay.
'cross' becomes 'x' (an X is a cross).
'bishop' becomes 'B' (abbreviation for bishop in chess).
'to steer' becomes 'ox' (a steer is a castrated ox).
'x'+'b'+'ox'='XBOX'

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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