Explain about registers, Computer Engineering

Assignment Help:

Q. Explain about Registers?

A register is a group of flip-flops that store binary information and gates that controls when and how information is transferred to register. An n-bit register contains n flip-flops and stores n-bits of binary information. Two fundamental types of registers are: Shift register and Parallel registers.

A parallel register is one of simplest registers comprising a set of flip-flops which can be read or written concurrently. Figure demonstrates a 4-bit register with parallel input-output. Signal lines Io to I3 inputs to flip-flops that may be output of other arithmetic circuits such as multipliers so that data from different sources can be loaded in the register. It has one extra line known as clear line that can clear register completely.  This register is known as a parallel register as all bits of register can be loaded in a single clock pulse.  

778_Explain about Registers.png

Figure: 4-bit parallel register

A shift register is used for shifting data to left or right. A shift register operates in serial input-output mode it implies that data is entered in register one bit at a time from one end of register and can be read from other end as one bit at a time. Figure below demonstrates a 4-bit right shift register employing D logical shift functions.

568_Explain about Registers1.png

Figure: 4-bit right - shift register


Related Discussions:- Explain about registers

Explain pipelining, Define pipelining Pipelining is an efficient way of...

Define pipelining Pipelining is an efficient way of organizing concurrent activity in a computer system. The processor implements the program by fetching and implementing instr

Propositional logic - artificial intelligence, Propositional Logic - artifi...

Propositional Logic - artificial intelligence: This is a limited logic, which permit  us to write sentences about propositions - statements about the world - which can either b

Binary resolution - artificial intelligence, Binary Resolution: We look...

Binary Resolution: We looked at unit resolution (a propositional inference law) in the last lecture: A ∨ B,   ¬B /A We may have this a bit further to propositional bin

Presumably for heightened tension - first-order logic, Presumably for heigh...

Presumably for heightened tension - first-order logic: As an aside, it's worth pointing out that - presumably for heightened tension - in most Sherlock Holmes books, the m

What is an assembler, An assembler is? Ans. An assembler is Machine dep...

An assembler is? Ans. An assembler is Machine dependant.

Give difference between assembler and interpreter, Give difference between ...

Give difference between assembler and interpreter. Assembler: It is the translator for an assembly language of computer. An assembly language is a low-level programming langu

What is persistence, What is Persistence When you make an object, it e...

What is Persistence When you make an object, it exists for so long as you need it, but under no circumstances object exist when program terminates. While this makes sense at s

Explain sequential sharing, Explain Sequential sharing. Sequential s...

Explain Sequential sharing. Sequential sharing: In this technique of sharing, a file can be shared through only one program at a time, it is file accesses by P1 and P2 are

What is a reference string, What is a reference string? An algorithm is...

What is a reference string? An algorithm is evaluated by running it on a exacting string of memory references and computing the number of page faults. The string of memory refe

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