► Explain the importance of computer maintenance
Story 1: Raina was very intent on having a laptop from his father after getting admission to the college. As her attainment in the first term examination was good, her father bought her a branded laptop with core i5 processor. Raina was impressed with the quality and speed of the laptop. She installed many pieces of software within few days. However, she noticed a gradual decline in its performance. After one year, she observed that the laptop was running too slow and it was irksome working on the computer. After somedays, she made a capricious demand to her father for purchasing another one for her.
Story 2: Ankon has recently taken internet
connection for the computer. Now he frequently browses the Web and has
benefitted greatly from the sites with the information related to his study.
Besides education, he uses the internet for sending emails, listening to music,
and watching movie. Recently he has found the computer often restarting without
any prior notification. In addition, the internet browser opens different sited
without any command. One day, he inserted a memory stick into the USB connection
port on his computer. He was shocked to find out that his files turned into
'shortcuts'. He couldn't even locate the original files.
What do you understand from the above events? Is it similar to
your experience? You have already known many things about Information and Communication
Technology this time, and you have understood that the processor and software
are the main components in ICT. A new computer, be it a desktop, laptop or
tablet, usually runs fast, but after somedays, it gradually slows down. As it
gets old, so it becomes slow. Sometimes, you have to wait for long after giving
a command. Situation at times becomes so worse sometimes you become so annoyed
that you want to buy a new one.
What is the way to get rid of this situation? Here lies the
importance of computer maintenance. You have llearnt a little about computer
maintenance in the junior Class. Most of the people do not like the task of
maintaining ICT or technological devices. However, it is an important task. If
you want to keep your ICT device operative, you have to maintain it. You need
not to be an expert for that job. We are talking of software-oriented
maintenance of ICT devices.
If the Windows Operating System of Microsoft Company is used in
your ICT device ( almost in all the computers of the world, Windows Operating
System is used), you have to check its status and update of the operating
system all the time. If the device is connected to the internet, the updates are done automatically.
Other operating systems provide a similar kind of facilities same facilities
too. In spite of that, you have to use registry clean up software to keep the
machine fast. If you do not use this software, your machine will not work properly
and it will be a matter of annoyance for you.
Besides, everytime while using the computer, some temporary
files are created. If these files are not erased for a long time, they occupy a lot of
space in the hard disk and slow down the speed of the computer. That is why we
should erase the temporary files with a software. It will make some space free
and speed up the computer.
Nowadays, the use of ICT device can not be imagined without the
internet connection. Many cookies and temporary internet files are saved in the
cash memory of the internet browser when you surf the net. It slows down the computer.
If
it is not possible to clean up the cash memory everyday, it must
be done in every few days' intervals. A piece of software can help you to get
the job done.
Using ICT device without anti-virus, anti-spyware and
anti-malware is very risky. It's an important maintenance activity that protect
the users' device from the attack of virus, malware and spyware, and they can
safely use their devices. Now many anti-virus, anti-malware, and anti-spyware
software can be downloaded free of cost from the internet and used to protect
the computer. Even these pieces of software can be updated from the internet.
The use of ICT device without updated anti-virus is very risky.
The computer users can run disk clean up and disk defragmentor
to keep the usual speed of the computer. These programmes are attached with the
operating system. These two pieces of software clean up the space of hardware and
arrange the files in such an order so that the speed of the computer is kept up.
Installation and Uninstallation of Software
We know that the ICT devices are operated with software. These
pieces of software have to be installed in the computer or in other devices.
When we purchase any ICT device, the seller asks us about the software that we
require. The seller after installing the required pieces of software along with
operating software gives it to us. In this way, we can use ICT devices, for
example, computer, tablet, smartphone, etc., as we require.
The process of installing operating system software is complex,
and expertise is essential for this job. We will have discussions on it in your
next Class. In addition to the operating system software, we need different
types of software. These pieces of software should be installed on the basis of
our needs.
Installation of any software requires special attention to the
issues given below:
► Whether
the hardware of your device supports the pieces of software to be installed;
► Whether
there is anything important in 'read me' file, if any, read it;
► Whether
all other works are stopped during installation or not; if not, the installation
process often gets hampered;
► Whether
the anti-virus software is turned off, and
► Whether
the administrator of operating system has the permission or not;
(All the devices have the permission except some particular
devices.)
Installation of software, except the operating system one,
depends almost on the operating system itself. However, the process of
installation is almost the same. We need the soft or the digital copy of the
piece of software to install it. It can be collected from CD, DVD, Pendrive, or
the Internet. In most of the cases, a programme called 'Auto Run' is attached
with the software. When you insert CD and DVD or connect a pmdrive to the USB
port, the 'Auto run' programme becomes activated and the piece of software
seeks permission for the set up. Follow the next steps after giving the
permission and the piece of software will be installed in your computer.
Restarting the device, you will be able to use the programme.
► Differentiate between software uninstallation and software deletion;
► Explain the importance of using password and anti-virus for the security of computer, data and software;
In this article, we will share with you the step by step guide on how to enable SSH on Raspberry Pi.
ردحذفThe entire process includes two steps:
- We need to enter the boot configuration and enable Secure Shell.
- We need to install a secure shell server on Raspberry Pi.
Both of these steps are covered with more details in this article.
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