> Computer and Education > courses > university courses > undergraduate courses > Operating System > zstu-(2021-2022)-1 > student homework directories > 2019329621127毛雷溥浩 >| homework 2 Version 0 |
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| 👤 Author: by 2972850556qqcom 2021-09-21 13:17:33 | |
Definition: a process is a group of interrelated and interactive activities that convert input into output, and a program is the way specified for a certain activity or process
The process is composed of a group of activities, or there may be only one activity. The English name of "activity" here is activity, which is sometimes translated into homework. Therefore, the process can also be regarded as a job. Usually, a process may also include several activities. Each activity can be regarded as a job, so the process is composed of each job.
Procedure is the way specified for carrying out an activity or process. The program can be documented or not. If a document is formed, this document is called a procedure document, and the procedure described by the document is called a documented procedure.
1. Program counter: the address of the instruction to be run next.
2. Process status: it can be new, ready, running, waiting or blocked.
3. CPU register: such as accumulator, index register, stack pointer, general-purpose register, status code, etc. its main purpose is to temporarily store data in case of interruption for further utilization later; The number and types vary with the computer architecture.
4. CPU scheduling method: pointers such as priority, scheduling queue and other parameters.
5. Memory management: such as tab table, etc.
6. Accounting information: such as the usage quantity, time limit, account number, work or process number of CPU and actual time.
7. I / O status: configure the process to use I / O devices, such as tape drives.
1. Program counter: the address of the instruction to be run next.
2. Process status: it can be new, ready, running, waiting or blocked.
3. CPU register: such as accumulator, index register, stack pointer, general-purpose register, status code, etc. its main purpose is to temporarily store data in case of interruption for further utilization later; The number and types vary with the computer architecture.
4. CPU scheduling method: pointers such as priority, scheduling queue and other parameters.
5. Memory management: such as tab table, etc.
6. Accounting information: such as the usage quantity, time limit, account number, work or process number of CPU and actual time.
7. I / O status: configure the process to use I / O devices, such as tape drives.
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