It was an extended and enhanced variant of the earlier 8008 design, although without binary compatibility.

The Intel 8080 was the successor to the 8008.

It used the same basic instruction set as the 8008 ( developed by Computer Terminal Corporation ) and was source code compatible with its predecessor, but added some handy 16-bit operations to the instruction set as well.

It had an extended instruction set that was source-( not binary -) compatible with the 8008 and also included some 16-bit instructions to make programming easier.

Marketed as source compatible, the 8086 was designed to allow assembly language for the 8008, 8080, or 8085 to be automatically converted into equivalent ( sub-optimal ) 8086 source code, with little or no hand-editing.

The processor was a significant evolution in the x86 architecture, and extended a long line of processors that stretched back to the Intel 8008.

The first single-chip microprocessor was the 4-bit Intel 4004 released in 1971, with the Intel 8008 and other more capable microprocessors becoming available over the next several years.

This feature was present in the Datapoint 2200 but was not implemented by Intel in the 8008.

The first Intel 8008 assembly language was based on a very simple ( but systematic ) syntax inherited from the Datapoint 2200 design.

This original syntax was later transformed into a new, somewhat more traditional, assembly language form for this same original 8008 chip.

At about the same time, the new assembly language was also extended to accommodate the added addressing possibilities in the more advanced Intel 8080 chip ( the 8008 and 8080 shared a language subset without being binary compatible ; however, the 8008 was binary compatible with the Datapoint 2200 ).

The first commercial 8-bit processor was the Intel 8008 ( 1972 ) which was originally intended for the Datapoint 2200 intelligent terminal.

While it contains no microprocessor, it used the 4004 programming instruction set and its custom TTL was the basis for the Intel 8008, and for practical purposes the system behaves approximately as if it contains an 8008.

This is because Intel was the contractor in charge of developing the Datapoint's CPU but ultimately CTC rejected the 8008 design because it needed 20 support chips.

The Sac State 8008 was designed with the Intel 8008.

The Intel 8008 was an early byte-oriented microprocessor designed and manufactured by Intel and introduced in April 1972.

One of the first teams to build a complete system around the 8008 was Bill Pentz ' team at California State University, Sacramento.

The Sac State 8008 was possibly the first true microcomputer, with a disk operating system built with IBM Basic assembly language in PROM all driving a color display, hard drive, keyboard, modem, audio / paper tape reader and printer.

The modern x86 instruction set is a superset of 8086 instructions and a series of extensions to this instruction set that began with the Intel 8008 microprocessor.

The 4004 was only capable of 60, 000 instructions per second, but its successors, 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 still backwards-compatible with the 8086 ) brought ever-growing speed and power to the computers.

The 8008 microprocessor was originally called 1201, per Intel ’ s naming conventions.

* 1970: First console to AIR Studios, first desk for BBC TV Lime Grove Studios, a standard 8008 24 / 8 costing £ 15, 000.

The basic unit, model 720 with an 80 kHz 8008, 2 kB RAM and no cassette drive sold for $ 4, 950 Canadian ( at the time the dollar was about par to the US dollar ).

In 1972, Intel launched the 8008, the first 8-bit microprocessor .< ref > using enhancement load PMOS logic ( demanding 14V, achieving TTL-compatibility by having V < sub > CC </ sub > at + 5V and V < sub > DD </ sub > at-9V )</ ref > It implemented an instruction set designed by Datapoint corporation with programmable CRT terminals in mind, that also proved to be fairly general purpose.

Intel renamed it the 8008, and put it in their catalog in April 1972 priced at $ 120.

In the UK, a team at S. E. Laboratories Engineering ( EMI ) led by Tom Spink in 1972 built a microcomputer based on a pre-release sample of the 8008.

Implemented in 10 μm silicon-gate enhancement load PMOS ; initial versions of the 8008 could work at clock frequencies up to 0. 5 MHz, this was later increased in the 8008-1 to a specified maximum of 0. 8 MHz.

bar: 1961 at: 8008 fontsize: XS text: 8008 shift :(- 8, 5 )

bar: 1961 from: 0 till: 8008

Early 4-bit and 8-bit microprocessors such as the 4004, 8008 and numerous others, typically had single accumulators.

As a direct descendent of the 8008, the 8080, and the 8086, the modern ubiquitous Intel x86 processors still uses the primary accumulator EAX and the secondary accumulator EDX for multiplication and division of large numbers.

Microprocessors such as the Intel 8008, the direct predecessor of the 8080 and the 8086, used in early personal computers, could also perform a small number of operations on four bits, such as the DAA ( Decimal Add Adjust ) instruction, and the auxiliary carry ( AC / NA ) flag, which were used to implement decimal arithmetic routines.

Intel lent him systems using the 8008 and 8080 processors, and in 1973, he developed the first high-level programming language for microprocessors, called PL / M.

In 1972, a Sacramento State University team led by Bill Pentz built the Sac State 8008 computer, able to handle thousands of patients ' medical records.

Intel's initial worries about their existing customer base leaving them proved unfounded, and the 8008 went on to be a commercially successful design.

The 8008 could access 8 input ports and 24 output ports.

Meanwhile, work on porting an APL interpreter to the system continued in parallel, using an 8008 emulator written in Fortran known as " INTERP / 8 ".

It was much faster and easier to interface to external memory and I / O devices than the 8008.

However, the encoding-strategy used still shows many traces from the 8008 and 8080 ( and Z80 ); for instance, single-byte encodings remain for certain frequent operations such as push and pop of registers and constants, and the primary accumulator, eax, employ shorter encodings than the other registers on certain types of operations ; observations like this are sometimes exploited for code optimization in both compilers and hand written code.

* Intel 8008 ( 1972 Datapoint 2200 compatible )

* Intel 8080 ( 1974 8008 source compatible )

In 1972, for the first time is marketed a solid state computer designed with a microprocessor ( the Intel 8008 8-bit microprocessor ).