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Articles by Chandu yadav
Page 38 of 81
One’s Complement
Binary Number System is one the type of most popular Number Representation techniques that used in digital systems. In the Binary System, there are only two symbols or possible digit values, i.e., 0 (off) and 1 (on). Represented by any device that only 2 operating states or possible conditions.Generally, there are two types of complement of Binary number: 1’s complement and 2’s complement. To get 1’s complement of a binary number, simply invert the given number. For example, 1’s complement of binary number 110010 is 001101. To get 2’s complement of binary number is 1’s complement of given number plus ...
Read More8051 Program to Add two 8 Bit numbers
Intel 8051 is an 8-bit microcontroller. It has many powerful instructions and IO accessing techniques. In this section, we will see one of the simplest program using 8051.Here we will add two8-bit numbers using this microcontroller. The register A(Accumulator) is used as one operand in the operations. There are seven registers R0 – R7 in different register banks. We can use any of them as the second operand.We are taking two number 5FH and D8H at location 20H and 21H, After adding them, the result will be stored at location 30H and 31H. AddressValue...20H5FH21HD8H...30H00H31H00H...ProgramMOVR0, #20H;set source address 20H to R0 ...
Read MoreWhat does it mean by select 1 from MySQL table?
The statement select 1 from any table name means that it returns only 1. For example, If any table has 4 records then it will return 1 four times. Let us see an example. Firstly, we will create a table using the CREATE command. mysql> create table StudentTable -> ( -> id int, -> name varchar(100) -> ); Query OK, 0 rows affected (0.51 sec) Inserting records mysql> insert into StudentTable values(1, 'John'), (2, 'Carol'), (3, 'Smith'), (4, 'Bob'); Query OK, 4 rows affected (0.21 ...
Read MoreInternal Data Memory Organization of Intel 8051
The internal data memory of 8051 is divided into two groups. These are a set of eight registers and a scratch pad memory. These eight registers are R0 toR7. The address range 00H to 07H is used to access the registers, and the rest are scratch pad memory. 8051 Provides four register bank, but only one register bank can be used at any point in time. To select the register bank, two bits of PSW (Program Status Word) are used.So the following addressing can be used to select register banks.Address RangeRegister Bank00H to 07HRegister Bank 008H to 0FHRegister Bank 110H to ...
Read MoreHow to select last 10 rows from MySQL?
To select last 10 rows from MySQL, we can use a subquery with SELECT statement and Limit concept. The following is an example. Creating a table. mysql> create table Last10RecordsDemo -> ( -> id int, -> name varchar(100) -> ); Query OK, 0 rows affected (0.75 sec) Inserting records into the table. mysql> insert into Last10RecordsDemo values(1, 'John'), (2, 'Carol'), (3, 'Bob'), (4, 'Sam'), (5, 'David'), (6, 'Taylor'); Query OK, 6 rows affected (0.12 sec) Records: 6 Duplicates: 0 Warnings: 0 mysql> insert into Last10RecordsDemo ...
Read MoreHow to select first 10 elements from a MySQL database?
To select first 10 elements from a database using SQL ORDER BY clause with LIMIT 10.The syntax is as followsSELECT *FROM yourTableName ORDER BY yourIdColumnName LIMIT 10;To understand the above syntax, let us create a table. The query to create a table is as followsmysql> create table Clients - > ( - > Client_Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, - > ClientName varchar(20) - > ); Query OK, 0 rows affected (0.51 sec)Insert some records in the table using INSERT command.The query is as followsmysql> insert into Clients(ClientName) values('Larry'); Query OK, 1 row affected (0.09 ...
Read MoreHow to select last row in MySQL?
To select the last row, we can use ORDER BY clause with desc (descending) property and Limit 1. Let us first create a table and insert some records with the help of INSERT command. The query is as follows. mysql> create table getLastRecord -> ( -> Id int, -> Name varchar(100) -> ); Query OK, 0 rows affected (0.61 sec) After creating the above table, we will insert records with the help of INSERT command. mysql> insert into getLastRecord values(1, 'John'); Query OK, 1 row affected (0.13 sec) ...
Read MoreHow to improve the ranking of your websites for search engines
Let’s assume that, you want to promote your dance academy. As the owner of the institution, you want more people to know about the types of dance forms being taught in your institute and the other facilities you are providing. The more people know about your academy, the more students you will get. So, with the help of your friends, you built a nice website to reach a wider spectrum of people in your regions which cannot be possible otherwise.Finally, you launched your website keeping your fingers crossed to see the response. A month passed, but you couldn’t see any ...
Read MoreWhy does one need a mentor in life to grow?
Either you want a growth in the current role or kick off a new business, a good mentor can pave the way for you. At your workplace, you might find many individuals who hold a treasure of leadership experiences and people just fall for their intelligence. You can make such people your mentor. Let’ dig out how you can benefit yourself from a good mentor?Who Can Be Your Mentor?Someone who takes his/her career passionately. This person carries a good deal of exposure in terms of experience and leadership and holds the ability to take you at the top from your ...
Read MoreCreate Three Equal Columns with Bootstrap grid Layout
To create three equal columns layout with Bootstrap Grid Layout, you can try to run the following code −Example Bootstrap Example Bootstrap Grid Column One Column Two Column Three Output
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