|What Is Computer Programme Anyway?
C.p.u. programming in plain language, is giving
instructions to a computer to do something. Technically it
is actually giving instructions to the microprocessor - the
brain of a computer.
If the instructions are only for the microprocessor, why a
computer is so complicated with numerous types of hardware
All the other hardware square measure to check the function of
feeding the manual to the microprocessor, and
conveying the result from the microprocessor to its utilizer -
which can be a human or another computer or hardware.
Every time you want a computer to do something you nativity to
give the instructions. Luckily people are smart enough to
figure unwrap that since we might want the computer to repeat
the same process over and over again, we better store the
instructions into a permanent storage - hard disk, Candle, flash
The stored instructions are called COMPUTER PROGRAM or
computer software and the act of arranging the manual
is called Figure Object-oriented programing and the person that is
responsible to arrange the instructions is called
.....COMPUTER PROGRAMMER ...do you see the pattern here?
On the lowest level, a microprocessor only understands a
limited set of instructions. To a microprocessor the
instruction sets and data are read in ?binary? form.
Binary means 2 states ? such as in on and off, high and low,
left and right. To make it easier mathematically, binary
normally is represented by 1 and 0. Electrically, 1
represents high voltage and 0 represents low voltage.
On the hard disk, program instructions look sensible like a
stream of 1s and 0s. But a microprocessor reads in the
stream one chunk at a time. Among normal chunk sizes are 8,
16, and 32. Chunk size is normally referred to as
One binary data (that can be a 1 america a 0) is called a ?bit?.
For example a data ?1001? is a 4
bit inform. Where first bit
is 1, second bridoon is 0, third bit is another 0 and the fourth
bit is 1.
Bit is the computer peripheral terminology for ?chunk?.
How instructions can be represented by bits?
One bit data can only represent 1 out of 2 possible states ?
either figure snake river 0. Which in real world can be used to represent
things such as on or off, high or low, black or white ? any
2 states condition?
If we increase the instruction size to distich bits, then we can
represent 4 instructions ? 00, salem 01, or 10 or 11. If we
increase the size to 3 bits then we can point out 8 possible
instructions ? 000, 001, 010, 011, 100, 101, 110 and 111
If you notice the trend from the above examples is that
maximum possible number of instructions is the power of 2 of
the bit size. That is duad bits can represent large indefinite amount of 2^2
(which is 4) instructions, and digit bits can presentation maximum
of 2^3 (which is 2x2x2 = 8) instructions.
So 8 bits data lav represent maximum of 2^8 (2x2x2x2x2x2x2x2
= 256) instructions (or states) and 32 bits data can
represent 2^32 (4,294,967,296) manual.
You can actually verbalize a program stream contents using
certain application ? normally called HEX editor. Using these
special stanza editors you can look at the instructions in
binary, hexadecimal, octal, and decimal format.
I?ll cover the details of what each of the above format
(hex, oct and dec) means usa other article.
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About the Author
Resource Box: Copyright ? Shamsul Anuar of Bouncingcube.com
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|The Australia Software Company releases new SQL Delta Version 3.1
Sydney, 10th May 2005 ? TASC hold on released SQL Delta version 3.1, a high performance SQL formal and data comparison tool for analysis and synchronization of databases.
Version 3.1 of SQL Delta offers the following new feature and improvements and is available now http://www.sqldelta.com
COMMAND Missive FUNCTION
A powerful command line script processor has been introduced to SQL Delta 3.1. The script business organisation provides the user with a mechanism for controlling SQL Alluvial sediment by remote control, allowing databases to be compared and changes scripted without any user intervention. The script language is stand XML and provides a variety of commands for configuring and controlling SQL Delta. In addition to the standard relation and script functions the user can export reports in various formats including HTML format and then have those reports automatically emailed to the appropriate user. Even scripts can be emailed as attachments if a change is detected in the database.
?We have designed the script processor to provide users, especially DBA?s, with the convenience of programmatic style
control of SQL Delta without the need to dig out a compiler and build an application. Even so a programmer can very easily create a seamless implement of SQL Delta from within their own employment if they desired? Jay Singer ? SQL Development Manager.
SQL Delta 3.1 now provides object ownership mapping and now it is possible to perform comparisons between databases with different users and different ownership configurations. The user can map on a user to user basis america a many to one apply basis and there is no limit to the itemisation of users that can be mapped.
Other New Features
Improved tools such as ?star view? checking to ensure all views that may use ?select * ..? are up to day and a qualify names tool for checking to see if stored procedures include qualified names, therefore ensuring the best performance from your server.
About the Author
Founded linear unit 1991, The Australian Software Company (TASC) is an Information Technology solutions provider developing customer orientated applications. Over the past years we have undeveloped a vast cascade mountains of software applications