Fourth  Generation Microprocessor :

The single chip 32-bit microprocessor was introduced in 1981 by Intel as iAPX 432. The other 4th generation  microprocessors  were;  Hewlett-Packard, Bell  Single  Chip  Bellmac-32  , Texas Instrument99000, National  NSl  6032, Motorola 68030 and 68020.

The  power  of  the  microprocessor  went  on  increasing  with  the  advancement  in  the  integrated  circuit technology.  The VLSI technology culminated in the extremely complex microprocessor with as many as one billion transistors on a single chip. The Intel in the year 1985 announced the 32-bit microprocessor (80386). The 80486 has already been announced and is also a 32-bit microprocessor.

Mostly microprocessors were manufactured with HMOS (high density short channel MOS) technology because of the following benefits:

(i) Speed-power product was 4-times larger than NMOS. It's typical value was I-pico joule where as in the case of NMOS technology it was 4-pico joules.

(ii) Circuit density was roughly 2-times greater than NMOS. The typical NMOS density was 4128 um2 gate whereas it was 1852.5 um2 for HMOS

 

Posted Date: 10/9/2012 9:00:10 AM | Location : United States

Ask an Expert

Related Discussions:- Fourth generation microprocessor, Assignment Help, Ask Question on Fourth generation microprocessor, Get Answer, Expert's Help, Fourth generation microprocessor Discussions

Write discussion on Fourth generation microprocessor
Your posts are moderated

Write your message here..

Related Questions

Hold response sequence-microprocesssor, Hold Response Sequence The HOLD... Hold Response Sequence The HOLD pin is examined at leading edge of each clock pulse. If it is received active line by the processor before T4 of the earlier cycle/during the T1

ROTATION, CANI GET HELP WRITTING THIS CODE CANI GET HELP WRITTING THIS CODE

Xml, Write the structure of For…Next loop in VB.Net and also write a progra... Write the structure of For…Next loop in VB.Net and also write a program to print integers from 1 to 10 on the console.

Interrupt priority management-microprocessor, Interrupt Priority Management... Interrupt Priority Management The interrupt priority management logic indicated in given figure can be implemented in several ways. It does not required to be present in system

Assembly language programs-microprocessor, Assembly Language Example Progra... Assembly Language Example Programs We studied the entire instruction set of 8086/88, pseudo-ops and assembler directives. We have explained the process of entering an assembly

Lods-stos-string manipulating instruction-microprocessor, LODS : Load Stri... LODS : Load String Byte or String Word:- The LODS instruction loads AL/AX register by the content of a string pointed to by DS:SI register pair. The SI is automatically modifie

Assignment, You have to write a subroutine (assembly language code using NA... You have to write a subroutine (assembly language code using NASM) for the following equation.

Label-assemblers directive-microprocessor, LABEL :   The Label directive... LABEL :   The Label directive which is used to assign a name to the current content of the location counter. At the beginning of the assembly process, the assembler start a loca

Multiplication, how we can multiply two 8 bit number with rotation how we can multiply two 8 bit number with rotation

Procedures, How to define procedures? How to define procedures?