How Data and Programs Are Represented in the Computer

As basic users, security is one feature that most of us overlook when it comes to operating systems until it is too late. In this paper we will discuss the security flaws within the Windows Operating system, and then discuss countermeasures to fix the system flaw.

Today, computers are found everywhere and people rely upon them for travel directions, entertainment, purchasing products, and social interactions.

- The third step: You need to establish a list of your employees on the system. You need to fill in employee’s name, address of employees, tax information such as Tax File Number (TFN) and etc.

Have you wonder where the power of technology and computers and all of the applications came from? Well there are a lot of computer applications like local security applications, protocols, well I am going to explain some security applications to you. There are many kinds of different security applications. I am going to explain two of different applications Linux and security policy settings.

In computer organization and architecture, memory is the most important part of a computer. Every computer must have its own memory. Memory represents two stable or semi-stable states that are representing 1 and 0. It is capable of being written to at least once and read multiple times. In this lab, we will learn briefly on two parts of memory only, which are RAM and ROM. As we know that a memory can either be non-volatile (as seen in a read-only memory) or volatile (used in random access memory).

The functions of computers have evolved throughout the years. Central processing units can be used for managing servers; they can also be used as personal desktop computers in addition to notebook computers. The first generation of central processing units consisted of having a magnetic core memory, while the second generation of central processing units consisted in the arrival of transistors. After the 1960’s, the third generation of central processing units gave us an increase in the production of microprocessors.

To find the errors, receiver will add the four words (the three original words and the checksum). If the sum contains a zero, the receiver knows that there is an error. We can detect all one bit errors , but two-bit errors cannot be detected (e.g., if the last digit of the first word is converted to a 0 and the last digit of the second word is converted to a 1).

humans and computers must be well designed. Humans do not think in binary or code.

The use of “check digit” software is an automated process that is based on an algorithm program that detects single-digit errors and all transposition errors involving two adjacent digits (DHHS, 2009).

39. Two important components of the system unit are the keyboard and the hard disk.

Charles Babbage is recognized as “The Father of Computing”. He developed the concept of a digital programmable computer. Charles contrived the concept called the Analytical Engine and it hailed as the first general-purpose computer concept. The Analytical Engine serves to be the signature of computer technology; nevertheless, this computer concept was the evolution that began the inventions of computers. Whereas the 1st generation of computers served in the early 19th century, it expanded throughout the generations; thus, evolving into computers people know today. In the 21st century not computers, but technology itself are highly known to be used everywhere. The advancement of technology within the 21st century does not just go into using computers; furthermore, it goes to using cell phones, tablets, pcs, laptops, desktops, wearable devices, such as smartwatches and activity trackers, etc. Computers are disbursed within workplaces, such as colleges, high schools, and even hospitals.

Determining what hardware underlies applications and data – to identify servers (both physical and virtual), web based applications, and data storage devices that hold critical and sensitive data.

The ENIAC was an incredibly complex and gigantic machine for its time. Although simple calculators that were able to add and multiply had existed for several years, the ENIAC was unique for several reasons. The ENIAC had twenty individual accumulators, rapid adding machines, which were able to add digits 0 through 9 very quickly. The fascinating part of the accumulators was that they were able to remember and store each computation and use it later on. “ENIAC could discriminate between the sign of a number, compare quantities for equality, add, subtract, multiply, divide, and extract square roots. ENIAC stored a maximum of twenty 10 digit decimal numbers. Its accumulators combined the functions of an adding machine and storage unit. No central memory unit existed. Storage was localized within the functioning units of the computer.”(3)

In the 21st century having a computing device it’s nothing unique anymore. Whatever we do, computers take important part in our everyday life. Smartphones, laptops, desktop computers and many more devices are nowadays easy accessible for everyone. These innovations did not happen overnight. Looking in the past computers haven’t been so complex since their where born. There was a long journey before also there is a long list of companies and within does companies people or great engineers who took such crucial part in evolving computers. There is many of them but in personal computing there is one company which took a significant

Security at hardware level is a new trend in security industry; it will accelerate the security at the processor and chip-set level (Vaquero, Rodero-Merino and Moran, 2011:112). Antivirus solution with Computers and Hardware will eliminate antivirus and Firewall security solutions industry. (Bruce Schneier accessed January/9 2013). Intel is planning to move computer security to the hardware level from its current software level, by incorporating security features onto their chips and processors (MEED 2010).This will also hit the IT Security devices market.