cases.
Ubuntu includes drivers for many printers, and it is usually easier to install
and use a printer in Ubuntu than in other operating systems. (This is not an
absolute rule, though.) Some printer manufacturers do not write and release
drivers for Linux, and for some printers no open source driver exists. Before
you buy a printer, it is a good idea to spend some time on the Internet
searching for printers that are known to work with Linux. One great resource
is the Open Printing database from The Linux Foundation, at
http://www.openprinting.org/printers.
If you choose wisely, all you need to do is plug your printer into the computer
and turn it on. In many cases, Ubuntu finds the printer and adds the driver
automatically. Within a couple of minutes, you should be able to use it. From
the Settings window, select Devices and then select Printers to add a printer,
to see all installed and configured printers, and to change printer settings.
From here you can choose to enable printer sharing on a network, set options
for default print quality, print a test page, and more.
Configuring Power Management in Ubuntu
Select Power from the Settings window to control how Ubuntu handles
power-saving features in specific situations.
Ubuntu provides good support for suspend, which means your computer
writes its current state to memory and goes into a low-power mode. Your
computer will start much faster the next time you use it because it does not
need to perform a full boot; it brings the system up to its previous state out of
memory instead of loading and starting every program again from scratch.
Setting the Time and Date
Linux provides a system time and date; your computer hardware provides a
hardware clock-based time. In many cases, it is possible for the two times to
drift apart. Linux system time is based on the number of seconds elapsed
since January 1, 1970. Your computer’s hardware time depends on the type of
clock chips installed on your PC’s motherboard, and many motherboard
chipsets are notoriously subject to drift.
Keeping accurate time is important on a single workstation, but it is critically
important in a network environment. Backups, scheduled downtimes, and
other network-wide actions need to be accurately coordinated.
The Ubuntu installer sets the time and date during the installation process