The second generation computers were based on vacuum tubes. ( )
查看答案
High-level languages must first be translated into a machine language before they can be understood and processed by a computer. This job is often done by an assembler. ( )
A. 对
B. 错
A modem is a device that converts between analog and digital signals, making it possible for a computer to transmit information over a standard telephone line. ( )
A. 对
B. 错
One megabyte equals approximately 10,000 bytes. ( )
A. 对
B. 错
When power is removed, information in ROM is remained. ( )
A. 对
B. 错