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The CDP1802 aka RCA COSMAC is an 8-bit microprocessor developed by RCA and presently manufactured by Harris Semiconductor , designed for embedded applications. It was one of the first radiation-hardened microprocessors, and was used widely in satellites and space probes.The 1802 has a static CMOS design with no minimum clock frequency, so that it can be run at very low speeds and low power. It has an 8-bit parallel bus with a bidirectional data bus and a multiplexed address bus. It has a bit-programmable output port, and four input pins which are directly tested by branch instructions. It's I/O mode is flexible and programmable, and it has a single-phase clock with an on-chip oscillator. It's register set consists of sixteen 16-bitIn computer science, 16-bit is an adjective used to describe integers that are at most two bytes wide, or to describe CPU architectures based on registers, address buses, or data buses of that size. Prominent 16-bit processors include the Intel 8086, Inte registers. The program counterThe program counter (also called the instruction pointer in some computers) is a register in a computer processor which indicates where the computer is in its instruction sequence. Depending on the details of the particular machine, it holds either the ad (PC) can be any of these, providing a simple way to implement multiple PCs, pointers, or registers.
This processor was used for several early computers, such as the COSMAC ELFVery early computer Operation without built-in ROMs, you can enter your program directly with help of the CPU integrated dma. Features: 2 segment digits Tape connector Notes: much like RCA COSMAC VIP without video chip except some ELF's did have video chi, COSMAC VIPThe RCA Cosmac VIP (1977) was an early microcomputer that was aimed at video games. For a price of $275, it could be purchased from RCA by mail order. It came in kit form, and had to be assembled. It's dimensions were 8. 5 by 11 inches, and it had a CDP18, Quest Super Elf, and Netronics ELF IIThe Netronics ELF II was an early microcomputer trainer kit introduced about 1977 featuring an RCA 1802 microprocessor, 256 bytes of RAM, 0 bytes of ROM, DMA based based bit mapped graphics, hex keypad for user interaction and DMA based program loading, a. It was also used in the VoyagerVoyager is also the name of a planned series of unmanned probes to Mars, cancelled in 1968. The Voyager program consisted of a pair of unmanned scientific probes, Voyager 1 and Voyager 2, launched in 1977. They were ostensibly sent to study Jupiter and Sa, VikingNASA's Viking program consisted of two unmanned space missions to Mars, Viking 1 and Viking 2. Each mission had a satellite designed to photograph the surface of Mars from orbit, and to act as a communication relay for the Viking lander that each mission and GalileoSpace Shuttle Atlantis on the STS-34 mission Galileo was an unmanned spacecraft sent by NASA to study the planet Jupiter and its moons. Named after the astronomer and Renaissance man Galileo Galilei, it was launched on October 18 1989 by the Space Shuttle space probes.
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