Alto computer

Alto computer. The Alto computer was a revolutionary minicomputer developed by Xerox PARC, a research and development company founded by Joseph C. Wilson. It was designed by a team led by Butler Lampson, Chuck Thacker, and Bob Taylor (computer scientist), and its development involved collaboration with other notable researchers, including Alan Kay and Adele Goldberg. The Alto computer played a significant role in the development of personal computing, influencing the design of later computers, such as the Apple Macintosh and the IBM PC, which were developed by companies like Apple Inc. and International Business Machines.

● Introduction

The Alto computer was a groundbreaking machine that introduced many innovative features, including a graphical user interface (GUI) and a mouse navigation system, which were later popularized by the Apple Lisa and the Xerox Star. The Alto's GUI was designed by Douglas Engelbart and his team at Stanford Research Institute (SRI), who also developed the oN-Line System (NLS). The Alto computer was also one of the first machines to use a bitmapped display, which was developed by Tektronix and later used in computers like the Sun-1 and the NeXT Computer. The Alto's design influenced the development of other computers, such as the Xerox Dolphin and the Three Rivers PERQ, which were designed by companies like Xerox and Three Rivers Computer Corporation.

● History

The Alto computer was first developed in the early 1970s at Xerox PARC, a research center located in Palo Alto, California. The project was led by Butler Lampson, who worked with a team of engineers, including Chuck Thacker and Bob Taylor (computer scientist), to design and build the machine. The Alto computer was designed to be a personal computer, with a focus on user-friendly interface and interactive computing. The Alto project involved collaboration with other researchers, including Alan Kay and Adele Goldberg, who developed the Smalltalk programming language, which was used in the Alto computer. The Alto computer was also influenced by the work of Douglas Engelbart and his team at Stanford Research Institute (SRI), who developed the oN-Line System (NLS) and the mouse navigation system.

● Hardware

The Alto computer was based on a 16-bit central processing unit (CPU) designed by Chuck Thacker and built using TTL (Transistor-Transistor Logic) integrated circuits. The machine had a 256 kilobyte random-access memory (RAM) and a 2.5 megabyte hard disk drive (HDD) developed by Diablo Systems. The Alto computer used a bitmapped display developed by Tektronix, which was capable of displaying black and white graphics. The machine also included a mouse navigation system developed by Douglas Engelbart and his team at Stanford Research Institute (SRI). The Alto computer's hardware was designed to be highly modular, with a focus on ease of maintenance and upgradability, similar to the design of the DEC PDP-11 and the Data General Eclipse.

● Software

The Alto computer ran a operating system called Alto Executive, which was developed by Butler Lampson and his team. The operating system provided a graphical user interface (GUI) and supported multi-tasking and windowing. The Alto computer also included a range of application software, including a word processor called Bravo (software), a spreadsheet program called Sil (software), and a programming language called Smalltalk. The Alto computer's software was designed to be highly interactive, with a focus on user-friendly interface and ease of use, similar to the design of the Apple II and the Commodore PET. The Alto computer's software influenced the development of later operating systems, such as Mac OS and Windows, which were developed by companies like Apple Inc. and Microsoft.

● Impact

The Alto computer had a significant impact on the development of personal computing, influencing the design of later computers, such as the Apple Macintosh and the IBM PC. The Alto computer's graphical user interface (GUI) and mouse navigation system were later popularized by the Apple Lisa and the Xerox Star. The Alto computer also influenced the development of other computers, such as the Sun-1 and the NeXT Computer, which were designed by companies like Sun Microsystems and NeXT. The Alto computer's design influenced the development of the Xerox Dolphin and the Three Rivers PERQ, which were designed by companies like Xerox and Three Rivers Computer Corporation. The Alto computer's impact can also be seen in the development of later technologies, such as the World Wide Web and the Internet, which were developed by researchers like Tim Berners-Lee and Vint Cerf.

● Legacy

The Alto computer is widely regarded as one of the most influential computers in the history of personal computing. The Alto computer's design influenced the development of later computers, such as the Apple Macintosh and the IBM PC, which were developed by companies like Apple Inc. and International Business Machines. The Alto computer's graphical user interface (GUI) and mouse navigation system have become standard features of modern computers, used by companies like Microsoft and Google. The Alto computer's legacy can also be seen in the development of later technologies, such as the World Wide Web and the Internet, which were developed by researchers like Tim Berners-Lee and Vint Cerf. The Alto computer is now on display at the Computer History Museum in Mountain View, California, along with other historic computers, such as the UNIVAC I and the ENIAC. Category:Computing