 Intel Intellec 4 Mod 40 | |
| Also known as | Intellec 4 Mod 40, Intellec 8 Mod 80, Intellec MCS4/MCS8 |
|---|---|
| Manufacturer | Intel[1] |
| Type | Microcomputer |
| Released | 1973 (1973) (1972)[2] |
| Introductory price | $2395 |
| Media | Floppy disk, paper tape[2] |
| CPU | Intel 4004,Intel 4040,Intel 8008 orIntel 8080 |
| Memory | 5 K standard, expandable up to 16 K for the Intellec 8 |
| Storage | ROM, PROM, RAM |
| Input | Front panel switches, optional terminal interface |
| Dimensions | 7 in. × 17 in. × 14 in.[2] |
| Weight | 14 kilograms (31 lb)[2] |
TheIntellec computers were a series of earlymicrocomputersIntel produced in the 1970s as a development platform for their processors.[1] The Intellec computers were among the first microcomputers ever sold, predating theAltair 8800 by at least two years.[2]
The first series of Intellecs included the Intellec 4 for the4004, the Intellec 4 Mod 40 for the4040, the Intellec 8 for the8008, and the Intellec 8 Mod 80 for the8080.[2]
The Intellec 4 and 8 were introduced at the June 1973National Computer Conference in theNew York Coliseum.[3] The Intellec computers were not sold to the general public, only to developers, and a very limited number were built. The Intellec 8 retailed for $2,395.[2]
The Intellecs haveresident monitors stored inROMs.[3] They also included an assembler, linker, and debugger, as well as the ability to act as an in-circuit emulator.[4] Additionally, aPL/M compiler, cross-assembler and simulator were available, which allowed writing programs in a higher-level language than assembly. FORTRAN compilers were also available.[5] The Intellec 8 supported aTeletype operating at 110baud, a high speedpunched paper tape reader[6] and aCRTterminal at 1200 baud.[7]
The Intellec 8 is able to address up to 16 K of memory and came with 5 K pre-installed. The Intellec 4 came with 1 K of PROM and 4 K of RAM for instruction memory, as well as 320 4-bit words of data memory, expandable to 2560 words. The Intellec 8 ran with a two-phase clock of 800 kHz, resulting in an instruction cycle time of 12.5 μs. The Intellec 4 ran at a slower clock rate of 750 kHz, but had a faster instruction cycle time of 10.8 μs. Both systems were available in "Bare Bones" editions, which omitted the front panel, power supply, and completed chassis; instead, it is designed to mount into a rack. Both systems also weighed 14 kilograms (31 lb).[5]
Intel did not market the Intellec as a general-purpose microcomputer, but rather as a development system. As the first microprocessors were intended to runembedded systems such as incalculators,cash registers,scientificinstrumentation,computer terminals,printers,plotters,industrial robots,synthesizers,game consoles, and so on, the Intellec was used for programming programmable memory chips used by embedded systems, e.g. the 2048-bit (256-byte) Intel 1602Aprogrammable read-only memory (PROM) or erasable 1702AEPROMchips which were plugged into aZIF socket on the Intellec-8'sfront panel.[8][9][10] The chip-programming socket is the green device in the lower right corner of the Intellec's front panel.
Intel also marketed the Intellec microcomputer development system as a system for developingotherOEM microcomputers.[11][12]
[…] the Intel Intellec 8 […] first appeared sometime in 1972 or 1973, two years or more before theAltair 8800 often credited as the "first microcomputer" by standard histories […]Intel maintains that the 8 Mod 8 was first produced in 1973 and discontinued in 1975. Tony Duell has an 8 Mod 80 CPU board dated 1972, and the 8 Mod 8 and 4 Mod 40 are both listed in the Intel Data Catalog published in February 1976, so the actual period of production may have been somewhat longer. (Pertinent Intel docs must be read carefully because the names MCS4, MCS40, MCS8 and MCS80 were used almost indiscriminately to refer to chipsets, computers or full systems.) […](52 pages)
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