COSMAC - meaning and definition. What is COSMAC
Diclib.com
ChatGPT AI Dictionary
Enter a word or phrase in any language 👆
Language:

Translation and analysis of words by ChatGPT artificial intelligence

On this page you can get a detailed analysis of a word or phrase, produced by the best artificial intelligence technology to date:

  • how the word is used
  • frequency of use
  • it is used more often in oral or written speech
  • word translation options
  • usage examples (several phrases with translation)
  • etymology

What (who) is COSMAC - definition

WIKIMEDIA DISAMBIGUATION PAGE
COSMAC (disambiguation)

CDP1802         
  • Register model
  • RCA CDP1802 COSMAC processor DIP chip [[pinout]]
8-BIT CMOS MICROPROCESSOR
CDP1802; RCA COSMAC; COSMAC 1802; CDP 1802; CDP 1801; Flexible Recreational Educational Device
RCA 1802         
  • Register model
  • RCA CDP1802 COSMAC processor DIP chip [[pinout]]
8-BIT CMOS MICROPROCESSOR
CDP1802; RCA COSMAC; COSMAC 1802; CDP 1802; CDP 1801; Flexible Recreational Educational Device
<processor> An extremely simple microprocessor fabricated in CMOS, running at 6.4 MHz at 10V (very fast for 1974). It could be suspended with the clock stopped. It was an 8-bit processor, with 16-bit addressing. Simplicity was the primary design goal, and in that sense it was one of the first RISC chips. It had sixteen 16-bit registers, which could be accessed as thirty-two 8-bit registers, and an accumulator D used for arithmetic and memory access - memory to D, then D to registers and vice versa, using one 16-bit register as an address. This led to one person describing the 1802 as having 32 bytes of RAM and 65535 I/O ports. A 4-bit control register P selected any one general register as the {program counter}, while control registers X and N selected registers for I/O Index and the operand for the current instruction. All instructions were 8 bits - a 4-bit op code (total of 16 operations) and 4-bit operand register stored in N. There was no real conditional branching, no subroutine support and no actual stack but these could be implemented by clever use of registers, e.g. changing P to another register allowed jump to a subroutine. Similarly, on an interrupt P and X were saved, then R1 and R2 were selected for P and X until an RTI restored them. The RCA 1805 was an enhanced version. The 1802 was used in the COSMAC (VIP?) microcomputer kit, some video games from RCA and Radio Shack, and the ETI-660 computer. It was chosen for the Voyager, Viking and Galileo space probes as it was also fabricated in {Silicon on Sapphire}, giving radiation and static resistance, ideal for space operation. More history (http://cosmacelf.com). (2002-04-09)

Wikipedia

COSMAC

COSMAC may refer to:

  • The RCA (CDP)1802 microprocessor, aka RCA COSMAC
  • The COSMAC ELF an RCA COSMAC microprocessor–based computer released 1976, sold as a kit
  • The COSMAC VIP an RCA COSMAC microprocessor–based computer aimed at video games, released 1977, sold as a kit