What is instruction register, Computer Engineering

Assignment Help:

Q. What is Instruction Register?

Instruction Register (IR): Here instructions are loaded before execution. Comments on figure above are as below:

All representations are in decimals. (In real machines the representations are in Binary).
Number of Memory Locations = 16
Size of every memory location = 16 bits = 2 Bytes (Compare with contemporary machines word size of 16, 32, 64 bits)
So size of this sample memory = 16 words (Compare it with actual memory) size that is 128 MB, 256 MB, 512 MB, or more).
In the diagram MAR is pointing to location 10.
Last operation carried out was 'read memory location 10' that is 65 in this. So the Contents of MBR is also 65.

Related Discussions:- What is instruction register

Determine the uses of smart cards, Determine the uses of Smart cards ...

Determine the uses of Smart cards These comprise embedded microchips and receive power from the card readers; Microchip is made up of RAM, ROM and 16-bit processor and the st

The alignment of a type ''c'' field in a report, The alignment of a type 'c...

The alignment of a type 'c' field in a report is? ? Left Aligned.

Databse, defination of query ?

defination of query ?

What are the factors determine the control signals, What are the factors de...

What are the factors determine the control signals? Contents of the control step counter Contents of the instruction register Contents of the condition code flag

How many instructions in a computer, Q. How many instructions in a Computer...

Q. How many instructions in a Computer? A computer can have a vast number of instructions and addressing modes. Older computers with the growth of Integrated circuit technolog

Mapping, what is transform mapping and transaction mapping?

what is transform mapping and transaction mapping?

What are the advantages of public key cryptography, What are the advantages...

What are the advantages of Public Key Cryptography? Advantages of Public Key Cryptography are illustrated in below: a) Increased convenience and security and b) Electro

What is span of control, Q. What is span of control? Span of control te...

Q. What is span of control? Span of control tells the ratio among superiors and subordinates. Generally organizations are having two different types of spans. They are Wide Spa

Explain the virtual memory, In computing, virtual memory is a memory manage...

In computing, virtual memory is a memory management method developed for multitasking kernels. This technique virtualizes computer architecture's various forms of computer data sto

State the drawbacks of laptop as compared to PC, State the drawbacks of lap...

State the drawbacks of laptop compared to PC The main disadvantages of laptops compared to desk top PCs are: - They tend to be more expensive to purchase - It's easie

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages