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Sunday, February 12, 2017
Monday, December 12, 2016
Some Shortcut Key for Ms-Word
Shortcut
|
Description
|
Ctrl + 0
|
Toggles 6pts of spacing before a paragraph.
|
Ctrl + A
|
Select all contents of the page.
|
Ctrl + B
|
|
Ctrl + C
|
|
Ctrl + D
|
|
Ctrl + E
|
Aligns the line or selected text to the center of the screen.
|
Ctrl + F
|
Open find box.
|
Ctrl + I
|
|
Ctrl + J
|
Aligns the selected text or line to justify the screen.
|
Ctrl + K
|
|
Ctrl + L
|
Aligns the line or selected text to the left of the screen.
|
Ctrl + M
|
Indent the paragraph.
|
Ctrl + N
|
Opens new, blank document window.
|
Ctrl + O
|
Opens the dialog box or page for selecting a file to open.
|
Ctrl + P
|
Open the print window.
|
Ctrl + R
|
Aligns the line or selected text to the right of the screen.
|
Ctrl + S
|
Save the open document. Just like Shift + F12.
|
Ctrl + T
|
Create a hanging indent.
|
Ctrl + U
|
Underline the selected text.
|
Ctrl + V
|
|
Ctrl + W
|
Close the currently open document.
|
Ctrl + X
|
|
Ctrl + Y
|
Redo the last action performed.
|
Ctrl + Z
|
Undo last action.
|
Ctrl + Shift + L
|
|
Ctrl + Shift + F
|
Change the font.
|
Ctrl + Shift + >
|
Increase selected font +1pts up to 12pt and then increase font
+2pts.
|
Ctrl + ]
|
Increase selected font +1pts.
|
Ctrl + Shift + <
|
Decrease selected font -1pts if 12pt or lower; if above 12,
decreases font by +2pt.
|
Ctrl + [
|
Decrease selected font -1pts.
|
Ctrl + / + c
|
Insert a cent sign (¢).
|
Ctrl + ' + <char>
|
Insert a character with an accent (grave) mark, where
<char> is the character you want. For example, if you wanted an
accented è you would use Ctrl
+ ' + e as
your shortcut key. To reverse the accent mark use the opposite accent mark,
often on the tilde key.
|
Ctrl + Shift + *
|
View or hide non printing characters.
|
Ctrl + <left arrow>
|
Moves one word to the left.
|
Ctrl + <right arrow>
|
Moves one word to the right.
|
Ctrl + <up arrow>
|
Moves to the beginning of the line or paragraph.
|
Ctrl + <down arrow>
|
Moves to the end of the paragraph.
|
Ctrl + Del
|
Deletes word to right of cursor.
|
Ctrl + Backspace
|
Deletes word to left of cursor.
|
Ctrl + End
|
Moves the cursor to the end of the document.
|
Ctrl + Home
|
Moves the cursor to the beginning of the document.
|
Ctrl + Spacebar
|
Reset highlighted text to the default font.
|
Ctrl + 1
|
Single-space lines.
|
Ctrl + 2
|
Double-space lines.
|
Ctrl + 5
|
1.5-line spacing.
|
Ctrl + Alt + 1
|
Changes text to heading 1.
|
Ctrl + Alt + 2
|
Changes text to heading 2.
|
Ctrl + Alt + 3
|
Changes text to heading 3.
|
Alt + Ctrl + F2
|
Open new document.
|
Ctrl + F1
|
|
Ctrl + F2
|
|
Ctrl + Shift + >
|
Increases the selected text size by one.
|
Ctrl + Shift + <
|
Decreases the selected text size by one.
|
Ctrl + Shift + F6
|
Switches to another open Microsoft Word document.
|
Ctrl + Shift + F12
|
Prints the document.
|
F1
|
Open Help.
|
F4
|
Repeat the last action performed (Word 2000+)
|
F5
|
Open the Find, Replace, and Go To window in Microsoft Word.
|
F7
|
Spellcheck and grammar check selected text or document.
|
F12
|
Save As.
|
Shift + F3
|
|
Shift + F7
|
Runs a Thesaurus check on the selected word.
|
Shift + F12
|
Save the open document. Just like Ctrl + S.
|
Shift + Enter
|
|
Shift + Insert
|
Paste.
|
Shift + Alt + D
|
Insert the current date.
|
Shift + Alt + T
|
Insert the current time.
|
Tuesday, October 18, 2016
Computer Networking
Computer Networking
In the simplest term network is a group of two or more computers interconnected by cable or some other media enabling them to share information and resources. With a network a large number of people can simultaneously work on different parts of the same database share information and resources. In a computer network multiple user can access the same information and connect the same resources.
A networking is a group of connected computers that allow people to share their resources (Hardware and Software) and information.
Advantages of Networking
Ø It allows sharing of information held on disk drive and sharing resources such as disk storage, printer, scanner ect.
Ø It is easier to store application programs on one computer and make them available to all users.
Ø It allows electronic mail to be sent between users.
Ø It is easier to setup new user and equipment.
Disadvantages of Networking
Ø User becomes dependent on them. Eg The Network file server developed of fault than many user will be unable to urn application program.
Ø If the network stop operating than it may not be possible to access various hardware.
Ø It is difficult to make system secured from hackers.
Ø As traffic increases of a network the performance degrades. Unless it is properly designed.
A resource may be:
§ A file
§ A folder
§ A printer
§ A disk drive
§ Or just about anything else that exists on a computer.
A network is simply a collection of computers or other hardware devices that are connected together, either physically or logically, using special hardware and software, to allow them to exchange information and cooperate. Networking is the term that describes the processes involved in designing, implementing, upgrading, managing and otherwise working with networks and network technologies.
Network elements
Servers
Servers are the computers that provide the shared resources to network users. There is usually only one server in a small network, but bigger networks may have more than one server.
Clients
Clients are the computers that can access the shared network resources provided by a server.
Media
The computers in a network are connected to each other by hardware components, such as cables. These components are called the media.
Shared data
A server provides shared resources and data over a network. The files that are provided by the server over the network are called shared data. This shared data can be a document, a worksheet or a folder.
Resources
Files, printers or other items that can be used by network users are known as resources. These resources can be either hardware or software resources.
Ø It allows electronic mail to be sent between users.
Ø It is difficult to make system secured from hackers.
§ A printer
Advantages & Disadvantage of Networking.
Advantages of
the computer Network
In
most organizations, a network offers benefits, such as data sharing and online
communication that are not provided by a stand-alone environment (An
environment in which there is several computers that are not connected to each
other is called a stand-alone environment.)
Data
sharing
The
data can be easily sharable in a network so other user can access it at any
time. For example, a user working in a team wants to share some data with the
other team members. In a stand-alone environment, to share the data you can
verbally exchanging information or writing memos or putting the data on a
floppy and copying it to the machines of other members. If it network the data
can be easily made sharable in a network so that the other team members can
access.
A
centralized data storage system enables multiple users to access data in
different locations.
Resource
sharing
Resource
sharing is also an important benefit of a computer network. For example, if
there are four people in a family, each having their own computer, they will
require four modems (for the Internet connection) and four printers, if they
want to use the resources at the same time. A computer network, on the other
hand, provides a cheaper alternative by the provision of resource sharing.
In
this way, all the four computers can be interconnected, using a network, and
just one modem and printer can efficiently provide the services to all four
members. The facility of shared folders can also be availed by family members.
Centralized
Software Management
One
of the greatest benefits of installing a network is the fact that all of the
software can be loaded on one computer (the file server). This eliminates that
need to spend time and energy installing updates and tracking files on
independent computers throughout the building.
Communication medium
A
computer network can provide a powerful communication medium among people
spread widely at different physical locations. It acts as a powerful
communication medium when it comes to sharing information and resources.
Data
Security and Management
In a
business environment, a network allows the administrators to much better manage
the company's critical data. Instead of having this data spread over dozens or
even hundreds of small computers in a haphazard fashion as their users create
it, data can be centralized on shared servers. This makes it easy for everyone
to find the data, makes it possible for the administrators to ensure that the
data is regularly backed up, and also allows for the implementation of security
measures to control who can read or change various pieces of critical
information.
Speed
Sharing
and transferring files within Networks are very fast. Networks provide a very
rapid method for sharing and transferring files. The sharing of data with the
other users in a stand-alone environment requires physical transfer of data.
This can be done by copying the data on a floppy disk or taking a printout.
This requires more time and is inconvenient as compared to sharing the data
over a network.
Disadvantages
of the computer Network
Ø
Expensive to Install
Although
a network will generally save money over time, the initial costs of
installation can be prohibitive. Cables, network cards, and software are
expensive, and the installation may require the services of a technician.
Ø
Data
Security
If a
network is implemented properly, it is possible to greatly improve the security
of important data. In contrast, a poorly secured network puts critical data at
risk, exposing it to the potential problems associated with hackers,
unauthorized access.
Ø
Cables May
Break
One
broken cable can stop the entire network.
Ø
File
Server May Fail
Although
a file server is no more susceptible to failure than any other computer, when
the files server "goes down," the entire network may come to a halt.
When this happens, the entire hospital may lose access to necessary programs
and files.
Ø
Virus
Infections
If
any computer system in a network gets affected by computer virus, there is a
possible threat of other systems getting affected too. Viruses get spread on a
network easily because of the interconnectivity of workstations. Such spread
can be dangerous if the computers have important database which can get
corrupted by the virus.
Ø
File
Server Fail down issues
For
this we can have backup fail server. When the files server "goes
down," then we can use the backup fail server. Having backup server we can
overcome this problem.




















