Programming Concepts

Multithreading is the ability of a program or an operating system process to manage its use by more than one user at a time and to even manage multiple requests by the same user without having to have multiple copies of the programming running in the computer. Central processing units have hardware support to efficiently execute multiple threads. These are distinguished from multiprocessing systems (such as multi-core systems) in that the threads have to share the resources of a single core: the computing units, the CPU caches and the translation lookaside buffer (TLB).

int computeXn(int x, int n)

{

if(n == 2)

{

return x*x;

}

else if(n % 2 == 0)

{

int y = computeXn(x, n/2);

return y*y;

}

else if(n % 2 == 1)

{

int y = computeXn(x, n/2);

return y*y*x;

}

}

nothing but type 2 dimension

In-accurate data is often termed as dirty data and has been characterized as missing data, wrong data and compound data with different representations.

Ex. :- customer dimension in which the same person can appear multiple times probably not with exactly the same spellings or other attributes.

If a Record occurs more than one time in a table by the difference of a non-key attribute then such a dimension is called Dirty Dimemsion.

In horizontally clustered environment, cluster-enabled application is deployed on multiple physical machines. Each machine is available for requests. Horizontal clusters offers protection over hardware failure, increases efficiency, provides load balancing and process failover. However, since there are many number of physical machines involved the installation and maintenance cost increases proportionally.

In Vertical clustering, multiple application server instances are hosted on the same physical machine. This type of clustering provides increased efficiency, load balancing and process failover. However, if hardware fails then there may not be ready alternative.

See if any among these helps to increase Hard disk transfer rate...

- Try using RAID setup

- In Device Manager under ATA/ATAPI Controllers verify if the hard disk is running in UDMA mode.

- Update motherboard chipset drivers

- Under Properties of the drive, Hardware Tab -> Properties of the hard disk:

Enable write caching

Enable advanced performance

main()

{

clrscr();

if(printf("Hello Tarun Goyal"))

{}

getch();

}

CDROM access is sequential..

Magnetic sequential access memory is typically used for secondary storage in general-purpose computers due to their higher density at lower cost compared to RAM, as well as resistance to wear and non-volatility. Examples of SAM devices still in use include hard disks, CD-ROMs and magnetic tapes. Historically, drum memory has also been used.

yes, we can hide by 2 possible options. 1. make the box type none to the text2. Use boolean ...ThanksDhana.

We don't give an & before reading a string. This is so because a string is a character array. For an array, be it integer or character or any other array, declared as int a[10] or char str[20], the name 'a' or 'str' stores the base address of the array, that is the address of the memory location where the array is starting. The scanf statement requires the address of the location to store the value input by the user. Since str already stores the address of the memory location we do not need to add the & before it.

Please share your experience.

A database is an organized collection of information. It is structured so you can jump to the information by using a key, and find related infromation by navigating a path. A sequential (flat) file is not considered a database.

A relational database contains one-to-many relationships.

A networked database contains one-to-many and many-to-many relationships.

Please share your answers.

Please share your answers.

Two or more process run concurrently called MultiTasking. There are two types of multitasking. 1) Process-based 2) Thread-based.

Process-based multitasking allows your computer to run two or more programs concurrently. Thread-based multitasing means single program can perform two or more task simultaneously.

1. Take 2 empty stacks.

2. Fill the 1st stack with some items (eg: input 100, 101, 102, 103)

3. Now read the items from 1st stack in LIFO order and write to 2nd stack.

(By this the 2nd stack will get the items in the order .. 103, 102, 101, 100)

4. Now read the items from 2nd stack in LIFO order i.e. the output will be

100, 101, 102, 103.

(this is the queue order FIFO with respect to the actual items entered in 1st

stack.)

Please share your answers.

8085 Assembly language is widely known as the lowest level language!!!