OpenFreeSoft

The first commercially advertised US computer based on a microprocessor the Scelbi has 4 KB of internal memory and a cassette tape interface, as well as Teletype and oscilloscope interfaces. Scelbi aimed the 8H, available both in kit form and fully assembled, at scientific, electronic, and biological applications. In 1975, Scelbi introduced the 8B version with 16 KB of memory for the business market. Under the direction of engineer Dr. Paul Friedl, the Special Computer APL Machine Portable personal computer prototype is developed at IBM's Los Gatos and Palo Alto, California laboratories. IBM’s first personal computer, the system was designed to run the APL programming language in a compact, briefcase-like enclosure which comprised a keyboard, CRT display, and cassette tape storage. Our vision is that every student in every school should have the opportunity to learn computer science. Learn the basics of programming, making webpages, or creating databases. Actual battery life dep...

Lisa itself, and especially its GUI, were inspired by earlier work at the Xerox Palo Alto Research Center. The first of several personal computers released in 1977, the PET comes fully assembled with either 4 or 8 KB of memory, a built-in cassette tape drive, and a membrane keyboard. After the success of the PET, Commodore remained a major player in the personal computer market into the 1990s. Computer Software The Newton line never performed  faqbaazar as well as hoped and was discontinued in 1998. Southwest Technical Products is founded by Daniel Meyer as DEMCO in the 1960s to provide a source for kit versions of projects published in electronics hobbyist magazines. SWTPC introduces many computer kits based on the Motorola 6800, and later, the 6809. Of the dozens of different SWTP kits available, the 6800 proved the most popular. The title of “first commercially available general-purpose computer” probably goes to Britain’s Ferranti Mark I for its sale of its first Mark I co...

Used for science and engineering as well as simple data processing, the LGP-30 was a “bargain” at less than $50,000 and an early example of a ‘personal computer,’ that is, a computer made for a single user. The first practical stored-program computer to provide a regular computing service, EDSAC is built at Cambridge University using vacuum tubes and mercury delay lines for memory. The EDSAC project was led by Cambridge professor and director of the Cambridge Computation Laboratory, Maurice Wilkes. Wilkes' ideas grew out of the Moore School lectures he had attended three years earlier. One major advance in programming was Wilkes' use of a library of short programs, called “subroutines,” stored on punched paper tapes and used for performing common repetitive calculations within a lager program. Acorn's ARM RISC microprocessor is first used in the company's Archimedes computer system. One of Britain's leading computer companies, Acorn continued the Archimedes line,...