Hacking

Reflecting the two types of hackers, there are two definitions of the word “hacker”:

  1. an adherent of the technology and programming subculture; see hacker culture.
  2. someone who is able to subvert computer security. If doing so for malicious purposes, the person can also be called a cracker.[1]

Today, mainstream usage of “hacker” mostly refers to computer criminals, due to the mass media usage of the word since the 1980s. This includes what hacker slang calls “script kiddies“, people breaking into computers using programs written by others, with very little knowledge about the way they work. This usage has become so predominant that the general public is largely unaware that different meanings exist.[2] While the self-designation of hobbyists as hackers is generally acknowledged and accepted by computer security hackers, people from the programming subculture consider the computer intrusion related usage incorrect, and emphasize the difference between the two by calling security breakers “crackers” (analogous to a safecracker).

The controversy is usually based on the assertion that the term originally meant someone messing about with something in a positive sense, that is, using playful cleverness to achieve a goal. But then, it is supposed, the meaning of the term shifted over the decades and came to refer to computer criminals.[3]

As the security-related usage has spread more widely, the original meaning has become less known. In popular usage and in the media, “computer intruders” or “computer criminals” is the exclusive meaning of the word today. (For example, “An Internet ‘hacker’ broke through state government security systems in March.”) In the computer enthusiast (Hacker Culture) community, the primary meaning is a complimentary description for a particularly brilliant programmer or technical expert. (For example, “Linus Torvalds, the creator of Linux, is considered by some to be a hacker.”) A large segment of the technical community insist the latter is the “correct” usage of the word (see the Jargon File definition below).

Representation in mainstream media

The mainstream media‘s current usage of the term may be traced back to the early 1980s. When the term was introduced to wider society by the mainstream media in 1983, even those in the computer community referred to computer intrusion as “hacking”, although not as the exclusive definition of the word. In reaction to the increasing media use of the term exclusively with the criminal connotation, the computer community began to differentiate their terminology. Alternative terms such as “cracker” were coined in an effort to maintain the distinction between “hackers” within the legitimate programmer community and those performing computer break-ins. Further terms such as “black hat“, “white hat” and “gray hat” developed when laws against breaking into computers came into effect, to distinguish criminal activities from those activities which were legal.

Representation in network news

However, network news use of the term consistently pertained primarily to the criminal activities, despite the attempt by the technical community to preserve and distinguish the original meaning, so today the mainstream media and general public continue to describe computer criminals, with all levels of technical sophistication, as “hackers” and do not generally make use of the word in any of its non-criminal connotations. Members of the media sometimes seem unaware of the distinction, grouping legitimate “hackers” such as Linus Torvalds and Steve Wozniak along with criminal “crackers”.[4]

As a result, the definition is still the subject of heated controversy. The wider dominance of the pejorative connotation is resented by many who object to the term being taken from their cultural jargon and used negatively,[5] including those who have historically preferred to self-identify as hackers. Many advocate using the more recent and nuanced alternate terms when describing criminals and others who negatively take advantage of security flaws in software and hardware. Others prefer to follow common popular usage, arguing that the positive form is confusing and unlikely to become widespread in the general public. A minority still use the term in both senses despite the controversy, leaving context to clarify (or leave ambiguous) which meaning is intended.

However, because the positive definition of hacker was widely used as the predominant form for many years before the negative definition was popularized, “hacker” can therefore be seen as a shibboleth, identifying those who use the technically-oriented sense (as opposed to the exclusively intrusion-oriented sense) as members of the computing community. On the other hand, due to the variety of industries software designers may find themselves in, many prefer not to be referred to as hackers because the word holds a negative denotation in many of those industries.

A possible middle ground position has been suggested, based on the observation that “hacking” describes a collection of skills and tools which are used by hackers of both descriptions for differing reasons. The analogy is made to locksmithing, specifically picking locks, which is a skill which can be used for good or evil. The primary weakness of this analogy is the inclusion of script kiddies in the popular usage of “hacker,” despite their lack of an underlying skill and knowledge base.

Sometimes, “hacker” is simply used synonymously with “geek”: “A true hacker is not a group person. He’s a person who loves to stay up all night, he and the machine in a love-hate relationship… They’re kids who tended to be brilliant but not very interested in conventional goals[…] It’s a term of derision and also the ultimate compliment.”[6]

Fred Shapiro thinks that “the common theory that ‘hacker’ originally was a benign term and the malicious connotations of the word were a later perversion is untrue.” He found that the malicious connotations were already present at MIT in 1963 (quoting The Tech, an MIT student newspaper), and at that time referred to unauthorized users of the telephone network,[7][8] that is, the phreakermovement that developed into the computer security hacker subculture of today.

5G

5G networks promise to support new services, more video, and cloud connectivity. There are three main case uses driving the 5G revolution:

1. Enhanced mobile broadband. With the promise of 10 Gbps connectivity and latency of less than five milliseconds, it’s no surprise the ongoing surge in demand for mobile connectivity will accelerate dramatically. The industry estimates this increased speed will result in a 10- to 100-fold increase in the number of 5G-connected devices over the number of 4G devices.

2. The Internet of Things (IoT). Thanks to 5G’s virtualized, radio technology-agnostic core, published predictions estimate as many as 20 billion IoT connections by 2020—connections that will drive smart buildings and smart cities. CommScope anticipates 5G will offer 1,000 times the bandwidth of 4G and up to five times the density, making room for all those “things” on the network.

3. High-reliability, low-latency networks. Beyond just doing what 4G does better and faster, 5G opens new doors to allow driverless cars to coordinate over the network, enable augmented reality and virtual reality and expand the horizons of remote surgery and other applications that can fulfill their promise only on a network with such ultralow latency times as 5G’s five-millisecond threshold. commscope.com Visit our website or contact your local CommScope representative for more information. © 2018 CommScope, Inc. All rights reserved. With these case uses in mind as the template for a real-world 5G rollout, it makes sense to also consider what can be done to make these applications possible. For operators, that plan boils down to three key strategies. The first is densification, or the practice of increasing capacity in a given area through more antennas, small cell sites or other measures. Upgrading to MIMO and sector splitting technologies also falls under this strategy. The second is virtualization, shifting the work of physical equipment to virtualized environments operating in centralized data centers. This strategy’s inherent efficiency can reduce costs by as much as 70 percent. The third strategy is optimization of existing assets and processes, including—but not limited to— repurposing earlier-generation wireless and TV spectrum and moving computing resources closer to the edge. Throughout the converged network, efficiency will be a critical design requirement for all aspects of 5G. Getting ready for 5G is as important as knowing how it will be used. CommScope has made an extensive study of the pre- 5G and coming 5G landscape, and we are excited to share what we know. To participate in a 5G workshop, learn more about CommScope’s solutions, request a quote or begin a new partnership, visit commscope.com or contact us anytime. 5G is coming. Powered by experience and focused on progress, CommScope can’t wait to help you unlock the power and potential of 5G networks.

Cloud computing

Cloud computing is an emerging computing technology that uses the internet and central remote servers to maintain data and applications. It refers to the use of computing resources that reside on a machine and are delivered to the end user as a service over a network. 

           Email service is an example of cloud computing. Our web based e-mail  service providers like Gmail,Yahoo,Outlook,etc. takes care of storing all the hardware and software necessary to support our personal e-mail account. When we need to access our email we open our web browser,go to the e-mail client, and log in. The most important part of this process is having an internet access. Our email messages and the software that manage email are not stored in our computer.The email service providers store them in the cloud.We access it from the cloud through an internet connection anywhere,anytime

similar to e-mail service, office software (word processors,spreadsheet,etc),graphic software,etc.are now available over cloud.people can use these software
for their benefit and can even store the files(documents,spreadsheets,images,etc,)created in their private storage space in the cloud. Cloud computing is a computing
model,where resources such as computing power,storage,network and software are combined and provided as services on the internet in a remotely accessible fashion.
Cloud computing is so named because the information being accessed is found in the ‘cloud’or a remote place just like clouds in the sky.to use the cloud computing
environment,internet access and an account with a cloud service provider is requred.Cloud computing is a subscription-based service where we can obtain networked
storage space and computer resources.