Computer network
security is a subject that gives rise to concern among network owners and
users. It’s not enough that computers are inherently vulnerable to Trojans and
viruses, now networks can be penetrated by hackers too for either fun or
malicious reasons. Protecting your network is an essential responsibility and
there are thankfully many uncomplicated ways to do that now
Security
Risks Briefly Described
There are many risks
in a computer network,
and most of them are consequences of ignorantly exposed virtual gateways for
hackers. Some of them are described below
- Operating a
network can provide unethical persons a way to request or retrieve a file
or resource they aren’t authorized to access. If a hacker can subtly gain
access to your network as an apparent user, they’ll be able to retrieve
any file or information allowable for viewing by users. The main problem
lies in the fact that certain information accessed by users must not get
into the hands of a hacker. In the event that the resources a hacker needs
are confined within the admin dashboard, all he has to do is find a way to
get admin privileges within the network
- Another computer
network security risk is the hacking of an inadequately protected user’s
account that can reveal a lot of damaging information. A hacker can also
execute his malicious plan for the sole purpose of deleting information
and databases within a network
- Falsification of
data, e.g. acct. numbers in banks, is another computer network security
risk. A hacker can get unauthorized access to a network in order to put
stored data and information into a flawed state
- DOS attacks are
also dreadful for network owners, and solving the problems that follow is
more complicated beyond acceptability than other risks
The description of
computer network risks above isn’t thorough, and it’s definitely advisable to
acquaint yourself with other risks (emphasis should be placed on the most dangerous)
– It’s the very first measure you can take to protect your network
How
to Protect a Computer Network
- Beware of the
kind of software you
install: Free pieces of software are distinctly suitable candidates for
criticism because it’s hard to find a paid piece of software that is
malicious in some way. Before installing free software, take some time to
read or just scan through those extensive terms you usually ignore, and do
it leisurely if possible. Harmful software can come in the form of
malware, adware, and spyware
- Back up your
files: Backing up files and other data is an effortless job. Nevertheless,
it’s one of the simple tasks that still face neglect today. One of the
best ways to render a hacker’s infiltration fruitless or insignificant (if
the hacker’s sole intent was to delete stored data and information) is to
have a backup of your files
- Use stronger
security systems: Don’t use systems that can be circumvented or disabled
from a single point of entry. Use systems that have many distinct layers
of protection incorporated into them. Some superfluity in this aspect is
good
- Keep abreast of
computer network security issues: You can also hire an employee for this
specific task
- Use the latest
versions of all software in use, including your system software or
operating system
- Make use of
firewalls and a VPN
Computer network
security will always be a huge topic as long as security holes remain unmended,
and new holes usually appear as old ones are fixed. Security should invariably
be your top priority if you want to avoid the adverse consequences that
accompany security breaches.’
First
of all, let’s know the term peripheral. It is a device that connected to
computer. It expands the computer’s capability. Mostly it is dependent
partially or entirely on the computer.
Such
devices include hard drive, expansion cards, graphic cards, loudspeakers,
digital cameras, computer mouse, keyboard, printers, tape drives, microphones
and web cams. RAM (Random Access Memory) is storage peripheral and is essential
for the effective functionality of all computers. Without it computer cannot be
work.
Devices
such as smart phones and tablet computers can be used as peripherals due to
their interfaces. As some peripherals they do not entirely depend on the host
computer. The CPU (Central Processing Unit), power supply, motherboard and
computer case is the only parts of computer that are not considered as
peripheral.
Peripherals
are of three types, they are output, storage and input.
For
inputting data in computer input peripherals are used like a mouse or a
keyboard. Output peripherals are used to give output to the person using the
computer. They include printers, computer
monitor and speakers. Hard drives and flash drives are the storage peripherals used
for storage data.
Performance
of computer is surely improved by the peripherals and more details are also
given by it. Before purchasing any peripherals you should know that your computer
will support it or not.
Make
sure to check the connection most specially those involving cards and also make
sure that the wires are in order. If you have difficulties in booting system
then you have to re install the peripherals. If it break down then it’s very
easy to replace with new one.
If you
are looking for the computer peripherals shop the
visit us and get all type of peripherals in
affordable price.
Computer
plays an important role in each ones life today and it is because it can do all
the work very quickly in an efficient manner. Computer today is used in every
household and company because it has the capacity to do the work of thousand
men together at a time. As the technology is advancing people are becoming more
addictive to computers and a main case for computer addiction would be
internet. The internet plays a very important role in performing various tasks.
The internet is a medium which connects different people living in different
parts of the globe. Hence we see people using internet in their computers,
Laptops, mobile phones etc. Now, when we talk about computer peripherals it
basically means the different parts or accessories of the computer. The
peripherals of computer all together make it a productive machine.
The computer peripherals basically
constitutes of the keyboard, mouse, c. p.u, web cam, printer, speakers etc. a
computer can be utilized fully only with the help of these peripherals in short
with the absence of peripherals a computer is just useless. People usually buy
computer peripherals by considering the use. Buying all the computer
peripherals is not necessary so people generally buy those peripherals which
are of their use. The peripherals of a computer are not usually form the same
companies as people buy all the peripherals differently by looking at the
brand. Many a times it so happens that people fall into a dilemma whether they
should buy a peripheral or not in such cases one must thoroughly think over it
and then go about buying that peripheral because buying a peripheral which is
not going to be of any use is total waste of money. So, one must do good
planning before buying computer peripherals.
The
main peripherals of a computer would be a keyboard mouse and a CPU apart from
these there is some peripherals which
people now a days wish to have other peripherals like web cam for chatting
purposes and printer for printing important documents. Whenever a person goes
about buying these peripherals he must do good research and opt for a good
brand which will offer you good peripherals so that you can work easily. As
said earlier every peripheral is necessary for a computer to function well,
peripherals such as web cam, speakers and printer can do excellent jobs. People
who wish to buy good peripherals can check out at the computer peripheral
classifieds as they provide you good details about the latest brands.
Kids today are very much addicted to computer like the elders so
for them there are so many video games available in these computers for
entertainment purpose. Also one can choose their favorite video game form the
many video games classifieds websites online as they have a good collection of
these games. Thus we see in computer peripherals too classifieds play a key
role. Hence while buying computer peripherals always keep in mind that computer
peripherals classifieds can help you a lot in giving the right choice.
1) Cleaning Start Up……..
Your
computer booting speed depends on the number of items in the start up………Start
up means the programs which automatically starts while booting……In start up
there may be many unwanted items which slow down ur pc. so first remove the
unwanted items from start up……..
For
this follow the steps…….
Step1:
Click on START> Run
step2:
And type MSCONFIG and press Enter
Step3:
Take the “Startup” tab from the right top corner.
Step4:
Unselect the unwanted programs and Press Apply..
Then
Restart the system……
2) Don’t Store datas in the main drive..
Do not
store lots of data in the main drive that means the drive which operating
system is installed.. And Games and other space taking programs like
finance softwares can
install in other drives.. It will improve your system performance……
3)Changing Virtual memmory…
Virtual memory is the space your
computer uses when the shortage of Random access memory (RAM),which is the
memory used when running big programsand Games. Increasing the virtual memory
usage on your computer, also referred to as pagination.This led to speed up
computer. Please not that DO NOT exceed the limit given in the properties box
of your windows system. To access and reset the Virtual
Memory: 1. Right click on My Computer.
2.Take
properties.
3.
Click on the advanced tab.
4.
Under Performance, click Settings
5.In
the Performance Options dialog box, click the Advanced tab. Find the
Virtual memory area. Click Change. The Virtual Memory dialog box is displayed.
Here you can change the pagination file to add more memory and speed up
computer.
This
will help to increase performance..
4) Disk De-fragmentation
Regularly
defragmenting the disk drive will speed up computer. This tool can be accessed
from the Start Menu then Accessories then System Tools
Or
Rightclick
on the drive to defragment..
Properties>Tools
tab> Defragment now..
Thats
it…
5) Cleaning “Temp”, ” Temporary Internet Files” and “Prefetch”..
Cleaning
Temporary Internet files, Temp, Recent documents, History….
1)Go to
the folder options and enable “show hidden files”..
2)Go to
the main drive means the drive in which operating system installed..
3)Documents
and Settings> (Your Account name)>Recent Documents..
Clean
it
4)Documents
and Settings> (Your Account name)> Local settings>
There
we can see ”Temp”, ” Temporary Internet Files” and “History”..
Clean
the files inside these three folders…
5)Type
“prefetch” in the run column and press enter…
6)Clean
all files in that window appeared.
This
will increase ur system performance..
6)To turn off SYSTEM RESTORE:
Freeing
up a lot of physical memory by turning off system restore can significantly speed
up computers.
click
START> ACCESSORIES> SYSTEM TOOLS> SYSTEM RESTORE Once there
you can edit settings and then turn off the system restore option.
It also
free up lots of space and increase ur performance..
7)Cleaning cache and cookies Regularly
cleaning the cache and cookies will make your browser and computer perform at a
faster speed. To Clean Internet Cache and
Cookies: START> CONTROL PANEL> INTERNET OPTIONS
Here u
find the option for delete cookies and cache Do this Regularly to
get a better performance.. This blog provide information about computer hardware and software troubleshooting.
You can get more information about them for that you should have to keep in
touch.
Computer software is,
by definition, a series of instructions and/or data that the computer system
will execute in a predetermined sequence. Computer software packages come in
many different styles and types. This virtual plethora of software come in many
forms: games, web browsers, chat programs, office applications, and specialty
software packages. Despite the number of variations computing software comes
in, in essence all the same to the computer: data in, input, and data out.
It is much easier to
break down software into four primary groups: productivity, programming,
entertainment, and common computing functions.
Productivity would be
the label for many software packages such as Excel, Word, PowerPoint, Pages,
Numbers, and so on. This particular variety of computer software is designed
for use in a wide array of environments and by users with varying skills and
interest sets. There are off the shelf productivity computer software packages
and there are custom made applications designed for very specific tasks.
Programming languages
are what software developers use to create computer software, though they are
in and of themselves pieces of software too. Programming languages from BASIC
to C++ and JAVA are all very common and there is a clear delineation between
pre-compiled languages such as C++ and many run-time compiled languages such as
many variants of BASIC. The distinction is that C++ typically is used to write
a program, then transform that human readable code into a language directly
readable by the computer system. Many forms of BASIC on the other hand create a
token or intermediary file which requires the assistance of a run-time engine
to compile it on the fly.
A
recent trend in computing languages is the development of platform agnostic
computer software packages. JAVA as a prime example of a
language that has led
this particular charge with their ‘write once, run it on any platform’
approach. Platform agnostic computer software will
run on many different platforms, but they tend to be less efficient than
compiled computer software.
Entertainment
software takes many forms, but games are usually what one thinks of when
discussing the topic of computer software designed to entertain. The latest
games are almost all following trends of internet connectivity for multiplayer
purposes (some genres even require this) and ever more realistic 3D graphics.
There are also an
incredibly large number of software applications that do not necessarily fall
into any of the above categories. For example: instant messenger programs and
e-mail programs can be considered productivity, but they can also be used for
the purposes of entertainment. Anti-virus software is another program which
virtually every modern computer should be using, but yet it is not easily
categorized since its utility lies in prevention and protection rather than tangible
usage qualities. Therefore, the definition for computer software for common
tasks would be just that: it must be common to a broad section of computing
needs, and does not necessarily have to be actively used.
Software can either
be professionally developed for profit, or public works that are typically
free. This is generally referred to as freeware or open-source if the code is
available for public editing.
If you want any type
of computer software you should contact Syscare computers.
They offer all types of software which you want in affordable price.
Computer
hardware is a device that is related to computers, and it is in a physical
form. Keyboards, mouse and monitors are examples of computer hardware that we
can touch. In contrast, computer software such as Windows operating system is
not considered hardware because it does not have any physical form, nor we can
touch it.
Examples
This
hardware is not only found in personal computers, but the term can be
attributed to anything physical which forms part of a larger computer system or
network. Nevertheless, computer hardware found in modern personal computers
include monitor, motherboard, CPU, RAM memory, expansion cards, power supply,
optical disc drive, hard disk, keyboard and mouse. All of these components of a
computer have physical form, and anyone can touch them. For example, if someone
has bought Microsoft Office disc to install MS Word on their personal computer
then it can be stated that the disc is a type of hardware because it has a
physical form. In contrast, application stored inside that disc e.g. Microsoft Word
is not hardware because it only exists in a digital format, and does not have
any physical aspect.
New Type of Computer Hardware
Similarly,
removable media devices such as CD-ROM drive and CD-W are some common types of
this hardware which are used to store data, and large files. Nowadays, USB
flash drives are becoming much more common, and they are quickly replacing
CD-ROM as preferred hardware to store temporary data. In near future, other PC
hardware called solid state drive will replace hard drives because it contains
no moving part, and takes much less space. Thus, hard drives, USB flash drives
and solid state drives are some other examples of computer hardware.
PC Hardware or Hardware: What’s the Difference?
Hardware
is a term used for physical objects of technology such as personal computer,
but terms like hardware and computer hardware are also synonymous. Therefore,
it is not uncommon to use terms like hardware and PC hardware, interchangeably.
For example, a CPU can be called either hardware or computer hardware. Usually,
anything physical related to computers is called PC hardware. Otherwise,
objects such as keys, locks, door handles, electric wires, cutting tools,
cutlery, machine and most things made of metal are generally known as hardware,
and found in hardware stores.
This is
the brief information about computer hardware, now you are clear about what is
compute hardware and its types. And you also see the difference between computer hardware and software.
MARE GRACE
C. CANOY
KIMBERLY F.
CARABALLE
JOVELLE J.
FUENTEBELLA
BS INFO 2-B
No comments:
Post a Comment