Silver square
Provided by the ASK Keyboard Dictionary
![](resources/images/branding/shark_1390120_thumb.jpg)
Refers to a style of IBM logo found on their business and personal computers and keyboards, especially from the early to mid-1980s. Typically, these came in the form of a solid silver square with a black IBM logo aligned at the top and optionally followed with additional text stating the computer or keyboard's host name or model number.