The processor card, keyboard, monitor and cassette drive were all mounted in a single metal case. The machine also included a built-in Datassette for data storage located on the front of the case, which left little room for the keyboard. The was announced in June and the first units were shipped in mid October This was addressed in the upgraded "dash N" and "dash B" versions of thewhich put the cassette outside the case, and included a much larger keyboard with a full stroke non-click motion.
It is a convenient and efficient means of communication, education, as well as entertainment. The development of computer technology was a gradual process, and it dates back to more than 2, years ago. This was the abacus, an instrument that was used extensively in different ancient cultures for making fast arithmetic and astronomical calculations.
Astronomical calculations eventually led the ancient Greeks and the medieval Muslim astronomers to invent the astronomical analog computers. InWilhelm Shickard invented the mechanical calculator, and Blaise Pascal made improvements to this device with the use of gears in InCharles Thomas created the first mass produced calculator, the arithmometer, which was based on the work of Gottfried Wilhelm von Leibniz.
It could add, subtract, multiply, and divide. This became very successful, and Hollerith built his own firm, which later became known as IBM, to market the device. InKonrad Zuse invented the Z3, which was the first programmable calculator. This device used the binary system as opposed to the decimal system that was used in earlier calculators.
The binary system played a pivotal role in the future design of computers.
The ENIAC was a large machine that occupied square meters of floor space, and it used 10 decimal digits to perform calculations. RAM made programming and computing faster, more efficient, and more flexible.
Transistors A breakthrough in the world of computers was achieved with the introduction of transistors, which are semiconductor devices that serve as amplifiers, and integrated circuits during the s.
This proved to be the beginning of the computer revolution. Until this time, vacuums were used in computers and calculating machines, but they were highly inefficient and required a great deal of space and low temperature for maintenance.
The advent of transistors and integrated circuits, or chips, greatly reduced space occupied by the machines and vastly improved their speed. Microcomputers Microcomputers are compact digital computers that are powered by a microprocessor.
The invention of the microprocessor in made it possible for almost anyone to have their own computer. Computers were initially limited to the military, universities, and very large companies.
The microprocessor made it possible for microcomputers and minicomputers to exist. The first minicomputer was the Altairwhich was made by MITS, but it had no software and its owner needed to create personal software to use it. Gates and Allen later formed Microsoft inand they started making operating systems for various machines.
Eventually, it was Apple and IBM that raced against each other in providing the home market with more attractive and user-friendly personal computers. Present Day Computers have come a long way from the simple abacus that was invented in the ancient times and the large calculating machines that were developed during the World War II period.
They have also become more efficient and easier to use than their earlier counterparts, enabling ordinary people and even young children to use computers for various purposes. Now, there are many different types of computers available in the market, and they include mainframes, desktops, laptops, tablet PCs, media centers, and personal digital assistants.An illustrated history of computers with over 50 rare photos.
Short History of MS-DOS.
Development of MSDOS/PCDOS began in October , when IBM began searching the market for an operating system for the yet-to-be-introduced IBM PC. A brief history of computers. by Chris Woodford.
Last updated: December 7, C omputers truly came into their own as great inventions in the last two decades of the 20th century. But their history stretches back more than years to the abacus: a simple calculator made from beads and wires, which is still used in some parts of the world.
The following brief history of computing is a timeline of how computers evolved from their humble beginnings to the machines of today that surf the Internet, play games and stream multimedia in.
The history of the personal computer as a mass-market consumer electronic device began with the microcomputer revolution of the s. The launch of the IBM Personal Computer coined both the term Personal Computer and PC.A personal computer is one intended for interactive individual use, , as opposed to a mainframe computer where the end user's requests are filtered.
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