Chapter 8 - Section 2: Platforms/End systems

Question 1

What does API stand for?

Answer 1

Application Programming Interface

Question 2

What does partitioning by the API allow?

Answer 2

A safe sharing of the processing resource (time), the memory (space) and communications (input/output)

Question 3

What ARINC specification details the avionics application software standard interface?

Answer 3

ARINC specification 653

Question 4

How is ARINC 653 described?

Answer 4

Software specification for space and time partitioning in safety critical avionics Real Time Operating System (RTOS)

Question 5

What is peculiar about the ‘logical channel’?

Answer 5

Does not exist in the physical sense but describes applications communicating with each other

It does this through the physical channel, this being the data network

Question 6

What is a virtual link?

Answer 6

Form of timeshare of the available physical link by restricting the time allowed for an application to send data