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History on computer (z1)
its considered to be the first electrical binary programmable computer, reading instructions from punched celluloid film. Made By Germany's Konrad Zuse, The machine was a 22-bit floating point value adder and subtracter, with some control logic making it capable of more complex operations such as multiplication (by repeated additions) and division (by repeated subtractions). Z1's ISA had nine instructions and its CPI ranged from 1 to 20. -
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History on computer - Atanasoff-Berry Computer (ABC)
Computer, the ABC started being developed by Professor John Vincent Atanasoff and graduate student Cliff Berry, in 1937 and continued to be developed until 1942 at the Iowa State College (now Iowa State University).The Atanasoff–Berry Computer was the first automatic electronic digital computer, an early electronic digital computing device that has remained somewhat obscure -
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ENIAC
The ENIAC was invented by J. Presper Eckert and John Mauchly at the University of Pennsylvania. It occupied about 1,800 square feet and used about 18,000 vacuum tubes, weighing almost 50 tons. ENIAC was amongst the earliest electronic general-purpose computers made. It was Turing-complete, digital and able to solve "a large class of numerical problems" through reprogramming. ENIAC could be programmed to perform complex sequences of operations. -
stored program computer
known as the EDSAC is considered to be the first stored program electronic computer. A stored-program computer is a computer that stores program instructions in electronic memory. This contrasts with machines where the program instructions are stored on plugboards or similar mechanisms.In 1936 Konrad Zuse anticipated in two patent applications that machine instructions could be stored in the same storage used for data -
The first PC (IBM compatible) computer
similar to the original IBM PC, XT, and AT, able to use the same software and expansion cards. Such computers used to be referred to as PC clones, or IBM clones. he computer was code named and still sometimes referred to as the "Acorn" and had a 8088 processor, 16 KB of memory, which was expandable to 256 and utilizing MS-DOS . The dark side of an open system is its imitators. If the specs are clear enough for you to design peripherals, they are clear enough to design imitations. -
RAM
A revolutionary computer that was the first digital computer with magnetic core RAM and real-time graphics. Random-access memory is a form of computer data storage that stores data and machine code currently being used. A random-access memory device allows data items to be read or written in almost the same amount of time irrespective of the physical location of data inside the memory. In today's technology, random-access memory takes the form of integrated circuits. -
transistor computer -The TX-O (Transistorized Experimental computer)
A transistor computer, now often called a second generation computer, is a computer which uses discrete transistors instead of vacuum tubes. The first generation of electronic computers used vacuum tubes, which generated large amounts of heat, were bulky, and were unreliable. The design of a full-size Transistor Computer was subsequently adopted by the Manchester firm of Metropolitan-Vickers, who changed all the circuits to more reliable types of junction transistors. -
Minicomputers
A minicomputer, or colloquially mini, is a class of smaller computers that was developed in the mid-1960s and sold for much less than mainframe and mid-size computers from IBM and its direct competitors.Minicomputers were also known as midrange computers.They grew to have relatively high processing power and capacity. They were used in manufacturing process control, telephone switching and to control laboratory equipment. -
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first personal computer
considered to be the Kenback-1, which was first introduced for $750 in 1971. The computer relied on a series of switches for inputting data and output data by turning on and off a series of lights. In 1975, Ed Roberts coined the term "personal computer" when he introduced the Altair 8800. Although the first personal computer is considered by many to be the KENBAK-1, which was first introduced for $750 in 1971. -
first work station
Although never sold the first workstation is considered to be the Xerox Alto, introduced in 1974. The computer was revolutionary for its time and included a fully functional computer, display, and mouse.Perhaps the first computer that might qualify as a "workstation" was the IBM 1620, a small scientific computer designed to be used interactively by a single person sitting at the console. It was introduced in 1960.A workstation specifically configured for graphics works -
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first laptop or portable computer
he computer weighed 55 pounds and had a five inch CRT display, tape drive, 1.9MHz PALM processor, and 64KB of RAM.The laptop was invented by Adam Osborne in 1981. It was called ''Osborne 1'' and cost $1,795. It came bundled with $1,500 worth of programmes. It had a tiny computer screen built into it.. It cost $1795 at the time of release. The screen was five inches long and the keyboard was in the lid of the computer. -
The first apple computer
Steve Wozniak designed the first Apple known as the Apple I computer in 1976. Apple Computer 1, also known later as the Apple I, or Apple-1, is a desktop computer released by the Apple Computer Company in 1976. It was designed and hand-built by Steve Wozniak. Wozniak's friend Steve Jobs had the idea of selling the computer. (equivalent to $2,806 in 2016) In July of 1976 the Apple-1 was released and sold for $666.66, which was about twice the cost of the parts plus a 33% dealer markup. -
first PC clone
Because of a shortage of IBM PCs that year, many customers purchased clones instead. Columbia Data Products produced the first computer more or less compatible with the IBM PC standard during June 1982, soon followed by Eagle Computer. Compaq announced its first IBM PC compatible in November 1982, the Compaq Portable. -
the first multimedia computer
MPC. Short for Multimedia Personal Computer, the MPC was developed in 1990 and is any computer that is capable of running programs that combine video, animation, and graphics. In 1992, Radio Shack released the M2500 XL/2 and M4020 SX computers, the first personal computers based upon the MPC specification. A multimedia computer system is a computer system that can create, , integrate, retrieve, and delete two or more types of media materials in digital form, such as audio, full-motion video,
