Answer:
The IBM 1401 is a variable-word length decimal computer that was announced by IBM on October 5, 1959.
Effective not effectove. These are guidelines:
Be brief.
Have a short opening sentence or paragraph that puts the matter in context.
Use the middle paragraph(s) to cover the matter(s) in hand.
Close with a clear agreement of what will be done, by whom, and by when.
