QWERTY QUERY

The layout of the keyboard comes in various styles, such as QWERTY, AZERTY, and DVORAK. QWERTY is the most common layout in English language computer keyboards.It takes its name from first six letters shown on the keyboard's top row of the letters.Similarly,French language keyboard use A and Z in place of Q and W and are known as AZERTY keyboards 

WHAT'S IN THE NAME? CD BURNING

CD-Rs and CD-RWs are made up of a poly carbonate substrate, a thin metal coating, and a protective outer layer.In a CD-R a layer of organic polymer dye between the poly carbonate and the metal layers serves a a recording medium. The laser creates marks(burns) in the dye layer that mimic the reflective properties of the pits and lands(lower and higher areas) of the cd.Due to this CD writing is also known as CD BURNING 

DENSITY OF TAPE

Density of a tape is referred to as the number of frames per inch(fpi) or character per inch(cpi) rather than bits/bytes per inch(bpi) Regardless of which term is used,a frame or byte is a group of related bits that make up a single character written across the width of the tape.

IBM

In 1896,Hollerith founded the Tabulating Machine company,which was later named IBM (International Business Machines)IBM developed numerous mainframes and operating systems,many of which are still in use today.For example IBM co-developed  OS/2 with Microsoft, which laid the foundation for windows operating system.