Where Computer Came From

What is this early device called?

What is this early device called?

I'm a computer big and fast,

Calculating, never surpassed.

Largest and fastest, I stand tall,

Processing tasks, big and small.

I'm a computer, here to show, Many tasks I help you know.

A thousand things, I do with grace, Busy non-stop in a digital space.

I'm a tiny helper, just for you,

Tasks you give, I'll see them through.

For one person's needs, I'm the ace, Working on tasks in my own small space.