Sunday, December 28, 2008

Knight Flowers in Bloom by a River

Knight Flowers in Bloom by a RiverBreton Asleep In The WoodsParrish Misty MornBreton A la Fontaine
mainstream computer use exploded, lowly data entry clerks would transfer information from written forms; punching holes into cards and paper tape ready for loading into the computer. The cheapness of this method meant that paper-based storage survived well into the late 1970s. In fact, my first experience of computing at secondary school was punching cards for my O-level Computer Studies assignments and sending them to Manchester University to be loaded
Punched cards had a unique drawback: each 80-column card corresponded to a single statement, so your finished program was a stack of punched cards. Problems occurred if you dropped or knocked over the stack, which then needed to be put back in order before it could be tape came into use from the early 1950s as a general data-storage medium. Though it was fast, could store far more data than paper tape and was rewriteable, it was still only capable of serial access. This meant that if you wanted to insert a record into the data stored on a tape, you generally read the data on one tape drive and wrote it to a tape mounted on another.

No comments: