Intel 8085

8085Intel 827580C85Intel 80C85MCS 858085 microprocessor8085 microprocessors85i8085Intel 8085A
The Intel 8085 ("eighty-eighty-five") is an 8-bit microprocessor produced by Intel and introduced in March 1976.wikipedia
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CP/M

CP/M-80CP/M operating systemBDOS
These processors could be used in computers running the CP/M operating system.
CP/M, originally standing for Control Program/Monitor and later Control Program for Microcomputers, (or Control Program/Micro ) is a mass-market operating system created in 1974 for Intel 8080/85-based microcomputers by Gary Kildall of Digital Research, Inc.

Zilog Z80

Z80Z80AZ-80
This capability matched that of the competing Z80, a popular 8080-derived CPU introduced the year before. Both the 8080 and the 8085 were eclipsed by the Zilog Z80 for desktop computers, which took over most of the CP/M computer market, as well as a share of the booming home-computer market in the early-to-mid-1980s.
Note that the assembled code is binary-compatible with the Intel 8080 and 8085 CPUs.

8-bit

8-bit computereight-bit8
The Intel 8085 ("eighty-eighty-five") is an 8-bit microprocessor produced by Intel and introduced in March 1976.

Intel 8080

8080i80808080A
It is a software-binary compatible with the more-famous Intel 8080 with only two minor instructions added to support its added interrupt and serial input/output features.
At Intel, the 8080 was followed by the compatible and electrically more elegant 8085.

Depletion-load NMOS logic

HMOSdepletion-modedepletion
The "5" in the part number highlighted the fact that the 8085 uses a single +5-volt (V) power supply by using depletion-mode transistors, rather than requiring the +5 V, −5 V and +12 V supplies needed by the 8080.
Processors built with depletion-load nMOS circuitry include the 6800 (in later versions ), the 6502, Signetics 2650, 8085, 6809, 8086, Z8000, NS32016, and many others (whether or not the HMOS processors below are included, as special cases).

TRS-80 Model 100

TRS-80 Model 100 lineModel 100NEC PC-8201
The 8085 processor was used in a few early personal computers, for example, the TRS-80 Model 100 line used an OKI manufactured 80C85 (MSM80C85ARS).

Intel 8237

82378237Aauto-init
Intel 8237 is a direct memory access (DMA) controller, a part of the MCS 85 microprocessor family.

Intel 8253

82538254Intel 8254
The 825x family was primarily designed for the Intel 8080/8085-processors, but later used in x86 compatible systems.

Intel 8255

82558255 PIO8255A
The 8255 is a member of the MCS-85 Family of chips, designed by Intel for use with their 8085 and 8086 microprocessors and their descendants.

Intel 8259

82598259A8259 Programmable Interrupt Controller
The Intel 8259 is a Programmable Interrupt Controller (PIC) designed for the Intel 8085 and Intel 8086 microprocessors.

Intel 8088

808880C888088 processor
The original IBM PC based on the Intel 8088 processor used several of these chips; the equivalent functions today are provided by VLSI chips, namely the "Southbridge" chips.
The reason for the reversal is that it makes the 8088 compatible with the 8085.

ISIS (operating system)

ISIS-IIISISproprietary operating systems
It is a large and heavy desktop box, about a 20" cube (in the Intel corporate blue color) which includes a CPU, monitor, and a single 8-inch floppy disk drive. Later an external box was made available with two more floppy drives. It runs the ISIS operating system and can also operate an emulator pod and an external EPROM programmer. This unit uses the Multibus card cage which was intended just for the development system. A surprising number of spare card cages and processors were being sold, leading to the development of the Multibus as a separate product.

Intel 8086

808680C86Intel-8086
The 8080 device, was eventually replaced by the depletion-load-based 8085 (1977), which sufficed with a single +5 V power supply instead of the three different operating voltages of earlier chips.

Mars Pathfinder

PathfinderSojournerCarl Sagan Memorial Station
The rad-hard version of the 8085 has been in on-board instrument data processors for several NASA and ESA space physics missions in the 1990s and early 2000s, including CRRES, Polar, FAST, Cluster, HESSI, the Sojourner Mars Rover, and THEMIS.
The embedded computer on board the Sojourner rover was based around the 2 MHz Intel 80C85 CPU with 512 KB of RAM and 176 KB of flash memory solid-state storage, running a cyclic executive.

IBM System/23

DatamasterIBM DatamasterIBM System/23 Datamaster
* IBM System/23 Datamaster gave IBM designers familiarity with the 8085 support chips used in the IBM PC
The processor is an 8-bit Intel 8085, with bank switching to manage 256 kB of memory.

Intel 8257

8257
The Intel 8257 is a direct memory access (DMA) controller, a part of the MCS 85 microprocessor family.

Intel 8282

8282
The 8282 can also be used in 8080/8085-systems replacing the 8212.

Microprocessor

microprocessorsprocessorprocessors
The Intel 8085 ("eighty-eighty-five") is an 8-bit microprocessor produced by Intel and introduced in March 1976.

Intel

Intel CorporationIntel Corp.Intel Inside
The Intel 8085 ("eighty-eighty-five") is an 8-bit microprocessor produced by Intel and introduced in March 1976.

Microcomputer

microcomputersmicrocomputingmicro-computer
However, it requires less support circuitry, allowing simpler and less expensive microcomputer systems to be built.

Volt

VkVvolts
The "5" in the part number highlighted the fact that the 8085 uses a single +5-volt (V) power supply by using depletion-mode transistors, rather than requiring the +5 V, −5 V and +12 V supplies needed by the 8080.

Dual in-line package

DIPSingle in-line packageDIL
The 8085 is supplied in a 40-pin DIP package.

Home computer

home computershomehome computing
Both the 8080 and the 8085 were eclipsed by the Zilog Z80 for desktop computers, which took over most of the CP/M computer market, as well as a share of the booming home-computer market in the early-to-mid-1980s.