Forth generation, Electrical Engineering

Assignment Help:

Forth Generation

VLSI  technology  of IC made it possible  to design the  complete  circuit  of ALU  Arithmetic  logic unit and cu ( Control Unit ) within  single  chip  which  comprises  teh main proc3essing  part called  central  processing  unit (CPU) of computer systems  see this chip  was named microprocessor.  The main  different between third  & forth  generation is the  invention of microprocessor ( Processor  on single chip)  although in both  generation technology  of IC issued. We  identify the microprocessor by a chip  number  given to the it. Since  it is the most important part of a computer  system we identify the whole  computer system by that chip  number of the microprocessor. For example  we usually  say that we  are working  on 80386, 80486 or Pentium ( 80586) computer. Actually  these  are the number  given by  the microprocessor used  inside  that computer.

Intel 4004 (first 4 bit microprocessor )  Intel 8008 ( 8 - bit processor )  Intel 8080 Zilog  Z 80 and Motorola  6800  were few early microprocessor of this  generation which  had the  features  of addressing mode  and instruction type. Due to very fast  growth  in the technology and  demand  a series of  microprocessors  were invented  in a very  short  period  like  Intel 8085,8088,8016,80286,80386,80486,then Pentium ( 805686).

2455_Forth Generation.PNG

                                                  Figure Basic Block Diagram of Computer Systems

Here are the  main  features of various  Intel  processor:

8085 :  8 bit  processor  8 bit  data  bus 8 bit  general  purpose  register 16 bit address bus  which can access 64 K of memory  simple  architecture.

8086 :  16 bit  processor 16 bit  data bus  16 bit  general purpose registers 20 bit address bus  which can  address 1MB of memory first member of 80 x 86 family concept  of segmented memory new instruction set supported by all  upcoming  processor  of the family of  80 x 86 .

80286 : Similar to 8086  except it has 8 bit  address bus which  can address  16 MB  of storage new memory management provides virtual storage space  of 1GB allows larger program to   run operates in two  addition of  new registers.

80386:  32 bit processor with data  bus of 32 bit address but 32 bit  capable  of accessing 4GB of physical  memory  and over  64 trillion bytes of virtual  storage general  purpose  resisters are  extended to 32 bit  with addition of new  registers.

80486 : Similar features as 80386  with a new feature  of cache memory  internal architecture  redesigned which  reduces  the execution time of  same in  structions of 80386  has on chip  co processor  earlier external co processor was required.

Pentium :  63 bit  processor  with 64 bit data bus 32 bit address bus it is a mixture of CISC ( Complex instruction set computer) and  RISC  ( Reduced Instruction Set Computer ) has separate 8 KB data  and instruction cache  dual  integer  pipelines and  prediction.

 


Related Discussions:- Forth generation

Calculate the minimum analog output voltage, Q. For a 6-bit weighted-resist...

Q. For a 6-bit weighted-resistor D/A converter, if R is the resistor connected to the MSB, find the other resistor values needed, and calculate the maximum analog output voltage, t

Features of tariff policy, Features of tariff policy: For projects who...

Features of tariff policy: For projects whose tariff is determined by performance- based cost of service regulation, the advantages of decreased tariff after full depreciation

Evaluate the magnitude of the wave impedance, Questions: (a) Suppose a ...

Questions: (a) Suppose a 100 kHz switching power supply. (i) Evaluate the magnitude of the wave impedance of the radiated field of a very short wire in the switching power s

What is pipelined architecture, What is pipelined architecture? The com...

What is pipelined architecture? The computer is composed of two parts that operate asynchronously one part known as a BIU, fetches instruction from code memory while the memory

Analog Filters, Each of the following functions is abs(H(jw))^2 of a certai...

Each of the following functions is abs(H(jw))^2 of a certain network function H(s). Obtain all the possible H(s) for each given abs(H(jw))^2. [(w^4)+25]/[(w^4)+(12w^2)+49]

Return instructions , Return Instructions These instruction  are used ...

Return Instructions These instruction  are used to transfer the program sequence from subroutine to the  calling program. Basically  it restores the  previous  contents  of th

Transformers, A 440v 4-pole dc generator takes an armature current of 50A w...

A 440v 4-pole dc generator takes an armature current of 50A when rotating at 626 rpm. the armature circuit resistance is 0.25 ohms. determine the generated emf?

Reverse recovery characteristics, Reverse Recovery Characteristics At t...

Reverse Recovery Characteristics At the end of forward  conduction in diode  reverse current  flows for  a short  time. The  device  doesn't  attain its full blocking  capabili

Explain ferroelectricity, Explain ferroelectricity. Ferroelectricity: ...

Explain ferroelectricity. Ferroelectricity: - Materials of ferroelectric have a high dielectric constant that is non-linear that is, this depends to a considerable extent on t

Role of bureau of energy efficiency, Role of Bureau of Energy Efficiency ...

Role of Bureau of Energy Efficiency The role of the Bureau of Energy Efficiency is to: Ready standards and labels of appliances and equipment; Develop a list

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd