Sunday, August 11, 2019
Computer Software Essay Example | Topics and Well Written Essays - 1000 words
Computer Software - Essay Example The ultimate objective is to get ordinary persons to be able to use the computer for their requirements. The nature of software divides it into three portions - operating systems, languages and applications. The first of these is the operating system which sets down the laws for exchange of information between men and the machine. This is taken by users as being part of the machine and is generally seen by individuals when they first switch on their computers. In many cases, for individuals using a computer at home, this is Windows. Till the system becomes functional and the loading of Windows stops, the user will not be able to start using the machine. Anything that is typed by the operator before Windows is ready for taking instructions will only result in the computer just clogging up and stopping operations. At the same time, Windows is not the only possible operation for a computer, as it may also have "UNIX, Apple Mach, Ban, VMS, RS, OS2, Irix, AIX or HP-UX" among others. (Comp uter Software) However, the operating systems lead to files being written in particular languages, and thus it is difficult for information to be exchanged between computers which have different operating systems. This is very important today in view of the high usage of Internet and sending of mail across the world. That is made simpler as the language for sending information is generally Internet Explorer or Mozilla Firefox. Files in these languages are accepted by all operating systems so that communication is not interrupted. In the same machine also it is possible to have more than one language like having both Windows and Linux, though Windows does not recognize the existence of Linux as it is viewed as a competitor. The next question is of languages used for writing instructions for the operation of the computer. This is the language used by programmers so that the computer itself can translate their instructions to machine language for the operation of the computer. It is important to know that the operations of the computer are carried out in machine language and that is in the simple method of off or on. Off is viewed as zero, and on is viewed as 1. Thus 2 are written in machine language as 10, and three is written as 11, and four as 100. Similarly, there are also codes for the alphabets, and for every character, there are 16 bits or 32 bits being used now. This also results in large sizes for files in computers. One page of typed matter has a size of over 20,000 units of bits. This makes it essential that computers have large storage capacities, presently over 80 gigabytes or 80 trillion bytes. Coming back to the point that we were discussing, some common languages are "C, C++, FORTRAN, COBO L, Pascal, Perl and Java". (Computer Software) Presently, the language popular among programmers is Java, as the instructions in that language can be the shortest. However, the ultimate language for passing on all instructions to the computers is machine language, and
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