51.
A dot-matrix printer

52.
What was the name of the first commercially available micro-processor chip?

53.
The term "memory" applies to which one of the following

54.
The working principles of today's computers were provided by an English mathematician

55.
A new technology which provides the ability to create an artificial world and have people interact with it is called

56.
The proper definition of a modern digital computer is

57.
Data systems for planning are often called

58.
Which of the following is not used as secondary storage

59.
A device that can accept data, hold them&deliver them on demand at a later time is known as

60.
A magnetic tape volume that is used on a data processing operation without any change to its contents is