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V92 Technology

Announced in 2000, the ITU's V.92 analogue modem standard has the same download speed as the V.90 standard (56 Kbit/s) but increases the maximum upload speed from 33.6 Kbit/s to 48 Kbit/s. As well as this performance improvement - referred to as PCM … [Read more...]

Filed Under: Serial Communications

V90 Technology

The V.90 standard is neither x2 nor K56Flex, although it does use techniques from both. It is actually two standards in one, the specification defining a digital modem and analogue modem pair capable of transmitting data at up to 56 Kbit/s … [Read more...]

Filed Under: Serial Communications

56Kbps Modems

1997 saw the arrival of the 56 Kbit/s modem, despite the absence of any international standard for this speed. The K56Flex group of companies, including 3Com, Ascend, Hayes, Motorola, Lucent and Rockwell, used Rockwell chipsets to achieve the faster speed, while companies like US Robotics used its … [Read more...]

Filed Under: Serial Communications

Communication Standards

Over the years, modem standards have tended to develop in a rather haphazard way. As well as defining the speed at which a modem may operate they determine how, exactly, a modem compresses data and performs its error … [Read more...]

Filed Under: Serial Communications

Voice Modems

Voice modems are part of the current communications convergence trend - the merging of voice, data, fax, and even video - which is affecting all aspects of data communications. Consider the Internet, originally a file transfer system, which is … [Read more...]

Filed Under: Serial Communications

Fax Modems

Nearly all modems now include some sort of fax capability and usually come with bundled software which provides a PC with most of the functionality of a fax machine. Digital documents can be converted to analogue, ending up as an image file (if the receiver is another fax/modem), or a printed … [Read more...]

Filed Under: Serial Communications

Serial Ports

National Semiconductor has made the UART chips which have driven the PC's serial port ever since the emergence of IBM's first PC. The original PC serial interface used the INS8250-B UART chip. This could receive and transmit data … [Read more...]

Filed Under: Serial Communications

Communication Speeds

The actual speed at which a modem can operate is dependent on the particular obstacles it has to overcome. These include: the PC itself, and in particular its serial port the state of the telephone line the kind of modem it is connecting to at the other … [Read more...]

Filed Under: Serial Communications

Modulation

Communication channels like telephone lines are usually analogue media. Analogue media is a bandwidth limited channel. In the case of telephone lines the usable bandwidth frequencies is in the range of 300 Hz to 3300 Hz. Data communication … [Read more...]

Filed Under: Serial Communications

Modems

A modem allows a PC to connect to other computers and enables it to send and receive files of data over the telephone network. At one end it converts digital data into a series of analogue signals for transmission over … [Read more...]

Filed Under: Serial Communications

20 Cool Creative Commons Photographs About the Future of AI

AI technology is starting to have a huge impact on our lives. The market value for AI is estimated to have been worth $279.22 billion in 2024 and it … [Read More...]

13 Impressive Stats on the Future of AI

AI technology is starting to become much more important in our everyday lives. Many businesses are using it as well. While he has created a lot of … [Read More...]

Graphic Designers on Reddit Share their Views of AI

There are clearly a lot of positive things about AI. However, it is not a good thing for everyone. One of the things that many people are worried … [Read More...]

Redditors Talk About the Impact of AI on Freelance Writers

AI technology has had a huge impact on our lives. A 2023 survey by Pew Research found that 56% of people use AI at least once a day or once a week. … [Read More...]

11 Most Popular Books on Perl Programming

Perl is not the most popular programming language. It has only one million users, compared to 12 million that use Python. However, it has a lot of … [Read More...]

10 Exceptional Books on ChatGPT that Will Blow Your Mind

ChatGPT is a powerful new AI tool that is taking the world by storm. You are going to find a lot of amazing books that will teach you how to make the … [Read More...]

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