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

Determine harmonic factor hf of the input current, Q. Consider a full-wave ...

Q. Consider a full-wave single-phase bridge recti?er circuit with dc motor load, as shown in Figure (a). Let the transformer turns ratio be unity. Let the load be such that the

The resistance of a 7 m length of the similar cable, The resistance of a 2 ...

The resistance of a 2 m length of cable is 2.5?. Verify (a) the resistance of a 7 m length of the similar cable and (b) the length of the same wire when the resistance is 6.2

Find the initial current when switch is closed - capacitor, 1. In the circ...

1. In the circuit shown below, the capacitor initially has a voltage across it 4 Volts (at t = 0). a. Write down the expression for V C (t) when the switch is closed. b. Wr

Node voltage method, (a) Carry out a topological analysis for the circuit s...

(a) Carry out a topological analysis for the circuit shown in Figure 1.     (i) Construct a graph for the circuit  (ii) State the different trees you can choose.    (b) Us

What are transmission bridges, Q. What are transmission bridges? How do the...

Q. What are transmission bridges? How do they assist in satisfying the connectivity?  Ans: A typical transmission bridge is demonstrated in figure. Series capacitance and shunt

Terms with respect to d.c machine, Q.  Define coil pitch, Back pitch, fron...

Q.  Define coil pitch, Back pitch, front pitch, pole pitch, commutator pitch, resultant pitch, Multiplex winding and degree of Re-entrant of a winding, with respect to a D.C. mach

What is programmable interrupt controller, What is programmable interrupt c...

What is programmable interrupt controller? The Programmable interrupt controller is used when several I/O devices transfer datausing interrupt and they are connected to the sam

What is digital system components, Q. What is Digital system components? ...

Q. What is Digital system components? The reason that digital systems are so inexpensive and yet so powerful is that they consist of very  large numbers of just a few building

Electro magnetism, ELECTRO MAGNETISM: In this unit we learned about el...

ELECTRO MAGNETISM: In this unit we learned about electromagnetism and the relationship that presents between and magnetic flux and electric current. The way in which electric

Carthode ray oscilloscope, with a simple circuit,explain the construction o...

with a simple circuit,explain the construction of Direct Reading Probe of a cathode ray oscilloscope

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