名词解释题positional information (位置信息)

A.Buy Information Model

B.Building Information Modeling

C.Build Information Model

D.Building Inform. Modeling

We know a computer is a machine that processes data(stored in main memory)into information, under control of a stored program. We also know that, internally, a computer is a binary machine; thus the data and the program instruictions must be stored in binary form. Characters are represented in(71). Numbers are stored as binary numbers, with each bit's positional value significant. A computer's main memory is divided into bytes, words or both(depending on the system), and each of these basic storage units is assigned an(72). Using this address, the processor can read or write selected bytes or words.

The processor consists of a clock, an instruction control unit, an arithmetic and logic unit, and registers. Once a program is stored in main memory, the processor can begin to execute it. During(73), the instruction control unit fetches an instruction from main memory; during(74), the arithmetic and logic unit executes it. Precisely timed electronic pulses generated by the clock drive this basic(75)

A．a binary code

B．words

C．registers

D．positional values

医院信息系统的英文全称是( )。

A、Clinical Information System

B、Hospital Information System

C、Hope Information System

D、Hospital Idea Service

E、Hospital Importance Service

A、Building;

B、Information;

C、Modeling;

D、Mode

Which statement concerning reserve sources of energy for GMDSS is FALSE ________．

A.While the ship is at sea，there must be available at all times a supply of electrical energy sufficient to operate the radio installations and to charge any batteries used as part of a reserve source of energy

B.Both the VHF and MF/HF installations must be simultaneously supplied

C.A means of ensuring a continuous supply of electrical power must be provided to all GMDSS equipment that could be affected by an interruption in power

D.If a UPS or equivalent is used to supply power to the ship's GPS receiver or other source of positional information，a means must be provided to ensure the continuous supply of the information in the event of a failure to the ship's main or emergency source of power

非对称的信息（Asymmetric information）