Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Explain about 4-bit adder-subtractor circuit?
Subtraction operation on binary numbers can be obtained by succession of addition operations only it implies that to achieve subtraction A-B we can find 2's complement of B. This can be computed by 1's complemented and then adding 1 to it. So a common circuit can carry out addition and subtraction operation. A 4-bit adder subtraction circuit is displayed in figure below that is formed by employing XOR gate with each full adder. XOR gate with output 0 is for inspecting overflow.
Figure: 4-bit adder-subtractor circuit
Control input 'x' controls operations it implies that if x =0 then circuit acts as an adder and if x =1 then circuit acts as a subtractor. The operation is summarized as below:
a. When x = 0, c = 0, output of all XOR gates would be same as corresponding input Bi where i = 0 to 3. So Ai and Bi are added by full adders providing Sum Si and carry Ci .
b. When x = 1 output of all XOR gates will be complement of input Bi where i =0 to 3 to that carry C0=1 is added. So circuit finds A plus 2's complement of B which is equal to A-B.
Explain the necessary conditions for deadlock to occur. Conditions for deadlock to arise are: i. Mutual exclusion: At least one resource must be held in a non-sharable mo
If for a short period of time circuits goes to some dissimilar logic level then it is assumed to have then it is known as static hazard e.g. If the final logic value of output of a
What is an operating system? An operating system is a program that handles the computer hardware. It acts as an intermediate among users of a computer and the computer hardwar
What are Sewing Kits? Sewing Kits are modules which contain a not used mix of gates, any other cells or flip-flops considered potentially helpful for an unforeseen metal fix. W
Explain briefly about GNOME desktop
Computer Architecture Basics: Some of computer architecture at companies such like AMD and Intel uses more fine distinctions: Macro architecture- this is an architectura
An identification method notifies Robot how to recognize the values to compare during record and playback.
Shared executes most of the security features into OLAP. If multiple accesses are needed admin can make essential changes. The default security level for all OLAP products is read
Explain about unix file system architecture
Differences between Datagrid, Datalist and Repeater? 1. Datagrid has paging while Datalist doesnt. 2. Datalist has a property known as repeat. Direction = vertical/horizon
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd