One report, three places
An analyst saves a sales report on the shared drive at her desk. After lunch she opens it on a different computer in another room. On the train home she checks a chart on her phone.
Three machines show the same report. One system keeps the files and the logins. A different kind of system runs the phone.
Key words
| Word | What it means | Example |
|---|---|---|
| Operating system | the main program that runs a computer | |
| Network | computers joined together so they can share things | |
| Network operating system | an operating system that runs and controls a network | a Linux server |
| Resource sharing | many users using the same printer, file or disk | |
| User management | making accounts and deciding what each user may do | |
| Mobile operating system | an operating system built for phones and tablets | Android |
| Account | a login with its own name and rights |
The cells students fill in are left blank in this preview.
By the end of this lesson
Note
I can describe what a network operating system and a mobile operating system do.
Starter
Have a go
Starter
3 questionsYour answers are marked here and are not kept. A college account keeps every student’s marks.
A network operating system runs the whole network
A network operating system runs on a server and looks after the network. It does three jobs.
Resource sharing: many people use one printer and one set of data files. User management: it makes accounts and decides who may do what. Communication: it lets computers send messages and files to each other.
The three jobs, in a data team
| Job | What it does | Example for analysts |
|---|---|---|
| Resource sharing | Shares printers, files and disks | One shared folder holds the survey results |
| User management | Makes accounts, passwords and rights | An intern can read the sales file but not change it |
| Communication | Moves messages and files between computers | An analyst sends a finished chart to the manager's folder |
The cells students fill in are left blank in this preview.
Extra: Who does the system think you are?
idA command for the lesson’s lab terminal. It is shown here and not run.
Extra: Count the accounts on this system
getent passwd | wc -lA command for the lesson’s lab terminal. It is shown here and not run.
Check
Have a go
Check
3 questionsYour answers are marked here and are not kept. A college account keeps every student’s marks.