Language of computer

The lowest-level programming language (except for computers that utilize programmable microcode) Machine languages are the onlylanguages understood by computers. While easily understood by computers, machine languages are almost impossible for humans to use because they consist entirely of numbers. Programmers, therefore, use either a high-level programming language or an assembly language. An assembly language contains the sameinstructions as a machine language, but the instructions and variables have names instead of being just numbers.

Programs written in high-level languages are translated into assembly language or machine language by acompiler. Assembly language programs are translated into machine language by a program called anassembler.

Every CPU has its own unique machine language. Programs must be rewritten or recompiled, therefore, to runon different types of computers.

Internet

The Internet is a global information system. Nowadays, the internet is popular everywhere in the world. The Internet provides many useful utilities for users but besides that it also has negative. I will analysis advantages and disadvantages of Internet specifically.

The first, the Internet is a big store of information. Any kind of information on any topic is available on the Internet. You can find it by the most popular search engines, for example: google.com, search.com, yahoo.com, etc. Beside, you can share information with other people around the world.

Secondly, the Internet connects many people all over the world. Stay up date with happening in the whole world and the new technology and information. You can get latest news of the world on the Internet. Most of the newspapers of the world are also available on the Internet. It easier to stay in touch with your friends by chatting, e-mail messages, forum….

Another benefit, there are many services on internet. Such as online banking, jobseeking, purchasing tickets for your favorite movies, and hotel reservations. Especially entertainment, you can see movies, listen music etc… You can play games with other people in any part of the world and there are many games for you choose.

Online education is also popular on the internet. Many websites provide lectures, books and documents on different subjects or topics. You can also download these lectures into your own computer. You can listen and see these lectures repeatedly and get a lot of knowledge.

Besides, there are also disadvantages. Children can connect to these websites that are for adult only. They can see the information which is not good. This is perhaps the biggest threat related to your children's healthy mental life.

Another drawback, today, Internet is the most popular source of spreading viruses. These viruses create different problems in your computer.Viruses that can attack your privacy and get some information about you. It’s hard to predict what will happen if you were hacked the account information.

The next drawback is accuracy of information. A lot of information stored is stored on the websites. Some information may be incorrect or not. Sometimes you may be confused.

Another problem is the wastage of times. A lot of time is wasted to collect the information on the Internet. Some people waste a lot of time in chatting or to play games.

At home and offices, many people use Internet without any positive purpose.

In conclusion, there are many advantages and disadvantages of the Internet, Depend on you, it will be the advantages or disadvantage. You should balance study and play.

E-mail

Short for electronic mail, e-mail or email is a message that may contain text, files, images, or other attachments sent through a network to a specified individual or group of individuals. Ray Tomlinson sent the first e-mail in 1971. By 1996, more electronic mail was being sent than postal mail. The following is a breakdown of an Internet e-mail address example.

The first portion all e-mail addresses, the part before the @ symbol, contains the alias, user, group, or department of a company. In our above example support is the Technical Support department at Computer Hope.

Next, the @ (at sign) is used as a divider in the e-mail address; required for all SMTP e-mail addresses since the first message was sent by Ray Tomlinson.

Finally, computerhope.com is the domain name to which the user belongs.

Дата добавления: 2015-11-30