- mémoire - matière potentielle : location
- mémoire
- mémoire - matière potentielle : area
1 OPERATING SYSTEMS INPUT/OUTPUT -1 Progress so far : Established an environment in which: - processes can exist, and - memory can be allocated to hold programs & data How do processes communicate with the outside world? What are the mechanisms for the input & output of information? Traditionally: I/O has been the least amenable to systematic generalisation. WHY? wide variety of peripheral devices Æ different characteristics & modes of operation, i.
- device descriptor
- peripheral code
- iorb
- iorb-1 iorb-2 iorb
- user programs
- stream
- device
- request
- output
- process