240、What is the main purpose of going online?

70、The software crisis is the between the high cost of developing software and the low quality of the product.

69、Cache is used to make the transfer speed between CPU and main memory .

68、Software is from the conceptual development of computer programs and programming.

67、The purpose of the network layer is to realize the transparent of data between two end systems

66、A network protocol is a rule for data exchange in a computer network.

65、1.Network administrator has full to all resources on a network.

64、Flash memory

63、Primary storage

62、Data attribute

61、Host address