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The Intel 8080 ("eighty-eighty") is the second 8-bit microprocessor designed and manufactured by Intel. It first appeared in April 1974 and is an extended and enhanced variant of the earlier 8008 design, although without binary compatibility. [3] The initial specified clock rate or frequency limit was 2 MHz, with common instructions using 4, 5 ...
The IMSAI 8080 is an early microcomputer released in late 1975, based on the Intel 8080 (and later 8085) and S-100 bus. [1] It is a clone of its main competitor, the earlier MITS Altair 8800. The IMSAI is largely regarded as the first "clone" microcomputer. The IMSAI machine runs a highly modified version of the CP/M operating system called IMDOS.
The 4004 was only capable of 60,000 instructions per second, but its successors brought ever-growing speed and power to computers, including the Intel 8008, 8080 (used in many computers using the CP/M operating system), and the 8086/8088 family. (The IBM personal computer (PC) and compatibles use processors that are still backward-compatible ...
In April 1974, Intel released the 8080 microprocessor that Roberts felt was powerful enough for his computer kit, but each 8080 chip sold for $360 in small quantities. [24] Roberts felt that the price of a computer kit had to be under $400; to meet this price, he agreed to order 1,000 microprocessors from Intel for $75 each. [25]
25,000 [1] CPU. Intel 8080 @ 2 MHz. The Altair 8800 is a microcomputer designed in 1974 by MITS and based on the Intel 8080 CPU. [2] Interest grew quickly after it was featured on the cover of the January 1975 issue of Popular Electronics [3] and was sold by mail order through advertisements there, in Radio-Electronics, and in other hobbyist ...
The first commercial microprocessor, the binary-coded decimal (BCD) based Intel 4004, was released by Intel in 1971. [1][2] In March 1972, Intel introduced a microprocessor with an 8-bit architecture, the 8008, an integrated pMOS logic re-implementation of the transistor–transistor logic (TTL) based Datapoint 2200 CPU.
The 8080 System Design Kit (SDK-80) of 1975 provided a training and prototype vehicle for evaluation of the Intel 8080 microcomputer system (MCS-80), clocked at 2.048 MHz. (The basic 8080 instruction cycle time was 1.95 μs, which was four clock cycles.) The SDK-80 allowed interface to an existing application or custom interface development.
When fashion photographer Richard Phibbs started photographing dogs in an effort to donate his services to the Humane Society of New York, he never intended for the portraits to end up in a book ...