05 September 2013
Input Unit
Input is a process by which data and instructions are entered into a computer system from the external world. Input Unit performs these tasks. It passes input information to the computer in a computer compatible form. Input information may be programs or data. Keyboard, Mouse, Floppy Disk, Joysticks, Punch Card, Analog to Digital converter (ADC) are some example of Input Devices. Computer works on binary codes. Hence input interfacing device is connected to the Input Unit. An Input Unit receives data and Instructions from the outside world. Input interface unit converts them into binary forms.
Functions of the input unit:
(a) It takes instructions and data from the external world,
(b) It transforms the instructions and data into binary form,
(c) It sends the converted data and instructions to the computer system for processing.
28 August 2013
What is Computer?
Computer is an electronic device which can performed a complex task by a very simple way, first & accurately using the precious instruction given to it by the human user.Advantage of computer:
- Very high speed: Computer can performed a task with in few second where a human being can do it in an entire year.
- Large storage capacity: We can store large amount of data in the computer memory.
14 July 2013
Email Tutorial [Last part] :: Sign in and sign out
Sign Out:- Before turn off the computer or web browser click on the sign out button from above right corner.
13 July 2013
Email Tutorial [Part-4] :: How do you check email
Now we look to see how to check received mail.
Email Tutorial [Part-3] :: How do you send an email
Today I will teach you how to send an Email to a person or more than one person.
At first click on the "COMPOSE" button and then a window will be open like below.
At first click on the "COMPOSE" button and then a window will be open like below.
11 July 2013
Email Tutorial [Part-2] :: How to create Email
How to create Email:
For create an email account or email address at first we need to register near e-mail service providers web site(E.G.- http://www.google.com , http://www.yahoo.com , http://www.rediffmail.com etc.). Here we can able to register free. This service providers give there Email service at totally free of cost.
Now we look to see how to register http://www.google.com for create an Email account. At first we should to go this web address http://mail.google.com and after that we can be able to see a screen like below.
For create an email account or email address at first we need to register near e-mail service providers web site(E.G.- http://www.google.com , http://www.yahoo.com , http://www.rediffmail.com etc.). Here we can able to register free. This service providers give there Email service at totally free of cost.
Now we look to see how to register http://www.google.com for create an Email account. At first we should to go this web address http://mail.google.com and after that we can be able to see a screen like below.
02 July 2013
Email Tutorial [Part-1] :: What is E-mail?
E-Mail
(Electronic Mail):
Electronic Mail is the most used feature on the Internet .We knows that it takes days to send a mail across the country and weeks to go around the world. For this reason, it is referred to as the ‘snail mail’. To save time and money, we use the electronic mail. It is fast, easy to use and it is cheaper than the postal mail. In its simplest form, e-mail is an electronic message sent form one computer to another. We can send or receive personal and business related message with attachments like picture or other document.
Working of E-Mail:
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