Perfect Computer Notes

FTP stand for     file transfer protocol. Lady ADA is the mother of computer.    VINT CERF     is the father of Internet. Nibble consists of   4   bits.   Google     and   Yahoo   are the two search engines. TCP/IP stands for Transmission control protocol/Internet protocol. One sector on Hard Disk holds   512    bytes.   Dos, window and UNIX are three operating systems. Demodulation converts Analog signal into Digital signal. ARPANET stands for advanced research project agency network. URL stands for uniform resource locator . Charles Babbage is the father of computer. Lady ADA is the first computer programmer. Nibble contains 04 numbers of bits. Name Two Mail service mail Yahoo.com. VOIP stands for Voice over internet protocol. One sector holds 512 numbers of bytes. Name two different Operating systems DOS and Windows. The process of demodulation converts digital signal into analog signal. URL st

what are the advantages and disadvantages of internet Internet has many advantages for users along with some disadvantages too. Let us discuss the benefits of using Internet first. ADVANTAGES OF INTERNET what are the advantages and disadvantages of internet Following are the main advantages of internet: 1. THE WORLD WIDE WEB This is also called web or www or 3w. The collection of all web pages in all web sites on internet is called www. These web pages provide us information. 2. E-MAIL E-mail stands for electronic mail. It is the most popular, cheap, easy and fastest mailing service. We can send and receive messages on internet with in seconds or minutes. 3. NEWSGROUPS Newsgroups are discussion groups on internet. They are used for free exchange of information. 4. MAILING LISTS Mailing lists provide information to the users on the selected topics through email. Mailing lists are maintained by different companies. 5. ONLINE BANKING Several banks are onlin

SERVICES PROVIDED BY INTERNET Important services provided by internet are as the following: 1. THE WORLD WIDE WEB This is also called web or www or 3w. The collection of all web pages in all web sites on Internet is called www. These web pages provide us information in the form of text, pictures, audio and video formats etc. 2. E-MAIL E-mail stands for electronic mail. It is the most popular, cheap, easy and fastest mailing service. We can send and receive messages on internet with in seconds or minutes. 3. EMAIL DISCUSSION GROUPS These are used to discuss different topics with other people by email. 4. NEWSGROUPS Newsgroups are discussion groups on internet. They are used for free exchange of information. A user sends a message to the news group site. Other users read this message from this site and reply. Newsgroups are provided by special computers called news servers. 5. ECOMMERCE It stands for Electronic Commerce. E-commerce means to carry out business dealings by internet