Premium Essay

Tech Guide

In: Computers and Technology

Submitted By basim28
Words 8488
Pages 34
Tech Guide 1
Hardware
TG1.1 Components of a Computer System
TG1.2 Evolution of Computer Hardware
TG1.3 Types of Computers
TG1.4 Microprocessor and Primary Storage
TG1.5 Input/Output Devices
TG1.1 Components of a Computer System
Computer hardware is composed of the following components: central processing unit (CPU), primary storage, secondary storage, input devices, output devices, and communication devices. Communication devices are covered in detail in Tech Guide 4.
The input devices accept data and instructions and convert them to a form that the computer can understand. The output devices present data in a form people can understand. The CPU manipulates the data and controls the tasks done by the other components. Primary storage (internal storage that is part of the CPU) temporarily stores data and program instructions during processing. Secondary storage (external storage such as flash drives) stores data and programs that have been saved for future use. Communication devices manage the flow of data from public networks (e.g., Internet, intranets) to the CPU, and from the CPU to networks. A schematic view of a computer system is shown in Figure TG1.1.
REPRESENTING DATA, PICTURES, TIME, AND SIZE IN A COMPUTER
ASCII. Computers are based on integrated circuits (chips), each of which includes millions of sub-miniature transistors that are interconnected on a small (less than l-inch-square) chip area. Each transistor can be in either an “on” or an “off” position.
The “on-off” states of the transistors are used to establish a binary 1 or 0 for storing one binary digit, or bit. A fixed number of bits representing specific characters—letters, numbers, and special symbols—is known as a byte, usually 8 bits. Because a bit has only two states, 0 or 1, the bits comprising a byte can represent any of 28, or 256, unique characters.
The character that the byte…...

Similar Documents

Free Essay

Tech.

...the photograph. These can be irregularities in the surface of a piece of wood or the complexity of a patterned fabric. * Sponsored Links * SSL Certificates - thawte Choose from a complete range of certificates with the strongest SSL www.thawte.com Depth * Depth is the creation of a sense of three-dimensionality in a photograph. A sense of depth is created using focus, framing and angles. Focus involves zooming in on particular objects so they are crisp and clear and other objects are blurry and unclear. Framing involves identifying an obvious foreground object close to the camera, with the main subject of the photograph further away. Line * Lines are the outlines of objects in a photograph. The lines of a photograph guide the eyes of the viewer around the photograph, and a photograph with interesting lines seizes the viewer's attention. Different lines can be used to convey different moods. Horizontal lines can be used to convey a sense of rest or stability. Vertical lines can be used to convey many different moods, such as power, strength and growth. Diagonal lines convey action and dynamism. Light * At its most basic level a camera is a device for capturing and recording light, therefore patterns of light and shade are the most basic elements of any photograph. A photographer needs a deep understanding of how light affects the operation of a camera and how light affects the photograph produced by that camera. Key issues to consider are the level......

Words: 3566 - Pages: 15

Premium Essay

Hemo Tech

...deliverables in the arrangement (Deloitte Development, 2010). Hemo Tech seems to have covered all their bases, assuming that the consumer decides to proceed into a contractual agreement for their equipment and services. Hemo Tech did not include training/ in-service as a deliverable. It is considered a deliverable because it is a service. Most medical equipment vendors readily offer this service as an incentive to purchasing their equipment. It is very necessary because this is the best way to fully ensure the user knows how to use it. The instruction manual is a great guide, but hands-on training is preferred when dealing with medical vendors. Part II Hemo Tech only sells it systems and installations as bundle, it does not sell it items individually. Hemo Tech does not have VSOE for selling prices of its equipment. Hemo Tech does not have TPE for selling prices, neither, due to the more advanced technology of their equipment compared to their competitors. Hemo Tech uses best estimations to determine selling prices by considering the cost taken to manufacture and develop the deliverables. In regards to the discounts on future services, Hemo Tech has VSOE for selling prices, because the supplies are sold separately at a consistent price. They, also, have TPE for selling price for their supplies because the items other vendors have supplies that are interchangeable to their supplies. Only issue is Hemo Tech supplies offers more enhanced feature that......

Words: 501 - Pages: 3

Premium Essay

Tech

...This is a guide on how to use Microsoft Baseline Security Analyzer (MBSA) for a security audit in Ken 7 Windows Limited. The first step is to Google “Microsoft Baseline Security Analyzer,” and begin to download and save it to your computer, after it is has been downloaded and saved then begin to install the MBSA tool on your computer infrastructure. The next step is to open MBSA by selecting the start button then choosing Microsoft Baseline Security Analyzer. The next step is to choose what scan you would like to do, so you can select “scan a computer,” to scan one computer or select scan multiple computers to scan more than one computer on the network. If you have chosen to scan one computer then you can either enter a computer name or IP address. If you are choosing to scan two or more computers than you can enter a domain name or a range of IP addresses. Next is to select the checkboxes next to the desired scanning options, in most situations it is good best to leave all the options checked for the most extensive scan and then start the scan to begin the scanning process. Once the scan is finished, then examine the results to see vulnerabilities have been discovered on your network. Address the vulnerabilities by download the necessary updates and patches to help in decreasing the vulnerabilities on the network and my sure to document enter step that was taken in correcting the vulnerability on the network....

Words: 254 - Pages: 2

Premium Essay

Hemo Tech

...Hemo-Tech Inc. A Case Study Analyis Shelli McCarten Keiser University ACG 5075 Dr. Randy Kuhn September 23, 2013 Hemo-Tech Inc. (“Hemo”) has entered into an agreement with Extract Co. (“Extract”) to provide certain equipment and services. Within the agreement, Hemo has identified five units of equipment, 50 boxes of equipment supplies, installation, one-year monitor and test services, and three-year screen and report services as deliverables. Hemo has identified these deliverables based on its adoption of Accounting Standards Code 605-25 and updated by FASB ASU 2009-13. Advice provided from Ernst & Young’s guide on ‘Revenue recognition-Multiple element arrangements’, which is based on ASC 605-25, states that a deliverable generally includes all performance obligations imposed on a vendor by an agreement and a deliverable may be an obligation to provide goods, an obligation to deliver services, a right or license to use an asset, or some other vendor performance obligation that was bargained for as part of the arrangement (“Revenue recognition – Multiple element arrangements”, 2012). The advice also states that an item is presumed to be deliverable if: 1) It is explicitly referred to as an obligation of the vendor in a contractual agreement; 2) It requires a distinct action by the vendor; 3) The vendor’s failure to complete an action would result in significant contractual penalty; 4) The inclusion or exclusion of the item in the arrangement......

Words: 631 - Pages: 3

Premium Essay

Tech

...still suffers in comparison to arch- rival GE, whose shares have had a total return of 423% over the past 10 years, versus 273% for the German company. Von Pierer himself has admitted that he wasn’t always able to push change as fast as he would have liked. It’s not just a question of cutting costs. “In the innovation game, productivity and R&D matter more than cost structure,” says William M. Castell, CEO of GE Healthcare. Siemens boasts that its engineers and scientists generate more than 8,000 inventions a year, but it needs to do more to turn those innovations into commercial products. Siemens was a leader in introducing mobile-phone handsets with color screens and built-in MP3 music players, for example, but wasn’t able to translate its tech edge into market strength. Can Kleinfeld succeed? He doubtless has the drive. Kleinfeld’s father, a shipyard laborer who became an engineer by studying nights, died when the boy was 10. That was a “brutal” experience, Kleinfeld says, but the hardship that followed forged a determination to succeed. An only child, he stocked grocery shelves at age 12 and has held a job ever since. After studying business at Georg August University in Göttingen, Kleinfeld put in stints at a Nuremberg market research firm and at drugmaker Ciba-Geigy before joining Siemens’s corporate sales and marketing department in 1987. The new Siemens chief was a multitasker before anyone used the term. Many of his generation milk Germany’s free university system for......

Words: 1771 - Pages: 8

Premium Essay

Tech

...the term and learn to work together effectively on group assignments. fD ts o r. T a hom y sB Preface xvii WHAT’S NEW Based upon feedback from readers and new developments in the field of technology entrepreneurship, numerous enhancements appear in this third edition. Recent compelling academic theories and practitioner insights in entrepreneurship are included in the text. Special attention is given to technology transfer and commercialization processes, open source innovation, and social entrepreneurship. All examples and exercises were reviewed to place even more emphasis on exciting technology ventures around the globe involved in energy and environmental technology applications, often referred to as clean or green tech. Chapters 1 and 2 are now better organized to introduce the the art and science of venturing. Chapter 4 on strategy development now contains important sections regarding alliances and social responsibility. The discussion in Chapter 5 on creativity and sources of innovation has a smoother flow. The d. ibite concept story and business plan development materials and tools are expanded h pro and summarized in Chapter 7. Chapter 13 now contains a section on clusters e is s and regions of entrepreneurship. New sections on cost drivers and grants as a ther u source of capital were added to Chapters 16 and 18, respectively. Three new o Any s. full-length cases are included in the appendix including two from ther famous Bye Harvard Business......

Words: 60653 - Pages: 243

Free Essay

Tech

...revolved around warfare, city-building, entertainment and “showing off” power and wealth - status of engineers in these courts increases with new political and military projects - Court patronage necessary for “Renaissance men” like Leonardo da Vinci and Galileo Galilei; courts provided vast resources, access to figures in power - New technique in the world of art, introduced by Leon Alberti, called linear perspective - Brought depth and perspective to drawings - Prior to this period, buildings were not drawn according to depth - People were drawn according to their status - Depth signals a huge change to peoples attitudes toward technology - Drawings of technology started using linear perspective, tech drawings blossomed - More interesting to look at - For the first time, peoples imaginations are opened up with the advanced images of invention - Technology and science are moving closely together…slowly - 3 reasons why we recognize this change: - -> Increased use of instruments and tools in scientific practices (experiments): more technology being used in scientific practices i.e. telescope, microscope - -> Social Spaces: places where people of different disciplines come together, talk and share knowledge i.e. pubs, coffee houses which first started during this area, salon - -> Hybrid Human: someone with interest in both science and technology A. Leonardo da Vinci (1452-1519) - little is......

Words: 3090 - Pages: 13

Free Essay

It Tech

...fairness to each driver. Every effort will be made to maintain the dignity of drivers or driver applicants involved. Disciplinary action will, however, be taken as necessary. Neither the policy nor any of its terms are intended to create a contract of employment or to contain the terms of any contract of employment. The Company retains the sole right to change, amend or modify any term or provision of this policy without notice. This policy is effective_______________, and will supersede all prior policies and statements relating to alcohol or drugs. ADMINISTRATION GUIDE TO PERSONNEL ALCOHOL AND DRUG TESTING PROCEDURES I. PURPOSE The purpose of this administrative guide is to set forth the procedures for the implementation of controlled substances and alcohol use and testing of driver applicants and current drivers pursuant to the Alcohol and Drug Abuse Policy. These procedures are intended as a guide only, and are in no way intended to alter any existing relationship between (Company) and any driver. (Company)'s alcohol and drug program administrator designated to monitor, facilitate, and answer questions pertaining to these procedures is_______________________________. II. DEFINITIONS When interpreting or implementing these procedures, or the procedures required by he Federal Motor Carrier Safety Administration (FMCSA) controlled substance testing regulations the following definitions apply: "Alcohol" means the intoxicating agent in......

Words: 6433 - Pages: 26

Free Essay

Tech

...a Web site. They usually don't require any technical knowledge to build. But it is limited to flexibility, can’t accommodate complex scripts. Having a web hosting account with third party is what I called True Web hosting. This allows you to build your own Web site, upload pages with sophisticated functionality, and modifies your site in almost limitless ways and includes a set amount of data transfer traffic from your computer to the host's server, so you can upload entire pages, images, multimedia files, or change existing pages. You can easily integrate e-commerce software into your site (some hosting companies even provide it with your account). But this flexibility doesn't come cheap. http://www.hongkiat.com/blog/website-migration-guide/ http://www.intelligentpositioning.com http://www.iisd.org/sdcn/webworks/ia/planning.htm http://www.register.com/newsletters/articles/webbusiness/self-hosted_site_builders_vs_web_hosting_accounts.rcmx...

Words: 1171 - Pages: 5

Premium Essay

Tech Support

...Running head: BASICS OF COMPUTER ONLINE TECH SUPPORT The Basics of Online Tech Support Steven T. Craig TUI University ITM 501 The Basics Of Online Tech Support In this paper I will share my experiences of On-Line Tech Support and the adventures of getting problems solved through the use of the Internet. First, I selected the main purpose for my search of on-line tech support. Since I was having problems with my computer with its daily operations, I felt that there was nowhere to turn but to reboot the computer and start from scratch. However, I was not to keen on the idea of erasing all my data and starting over and thought that perhaps there was another way to fix my issues. I used the on-line tech support web site www.Help.com. After searching the Internet for an interesting or catchy home page of Internet tech support, I stumbled upon help.com. I read the intro page and look under some of the discussions and decided to enter the domain and ask my help question. Which was, “ how do you erase your computers data and start all over?” After being prompted to sign up for the account and agreeing to the user agreement options. I started off by reading previous post, for ideas of answers and posted dialogue that was being shared. Unfortunately my question was not asked previous and I had to venture out on my own to request the answer. This website and the postings at this website......

Words: 638 - Pages: 3

Premium Essay

Tech

...the DIACAP Scorecard. Phase 3: Make Certification Determination and Accreditation Decision In this phase the Certification Authority (CA) makes the certification determination and the DAA makes the accreditation decision. Make Certification Determination When the system has completed all implementation and validation tasks, the DIACAP package is submitted to the Certifying Authority (CA) for a certification determination. A CA representative is an active member of the DIACAP Team from inception and continuously assesses and guides the quality and completeness of DIACAP activities and tasks and the resulting artifacts. Scope: Comply with Defense Information Systems Network (DISN)/Global Information Grid (GIG). Flag Panel direction issued on behalf of the GIG MA PAAs. Ensure a DIACAP package is initiated and completed for assigned ISs. Ensure assigned DOD ISs comply with applicable DOD baseline IA Controls. Ensure security classification guides are established according to DOD 5200.1 - R. Authorize or deny operation or testing of assigned DOD ISs. Coordinate with the Director, Operational Test and Evaluation before denying IATT. Senior Information Assurance Officer (SIAO) – The Senior Information Assurance Officer is the official responsible for directing an organization’s IA program on behalf of the organization’s CIO. SIAOs are appointed by Assistant Secretary of Defense for Networks and Information Integration (ASD (NII)/DOD CIO to direct and coordinate the......

Words: 9781 - Pages: 40

Premium Essay

Tech

...John Weatherwax Week 7 En 1320 Research paper New technology break troughs, Research question, less than 30 years ago we had no cell phones If we can talk on a cell phone that is a watch today and where will we be in 30 more years? Just by what I have seen and heard from various producers of cell phones I do believe that the cell phone tech is going to be in the field of a wearable devices the new (in the last few years ) watches are just the start. In the 50’s Dick Tracy had a watch that the new watches mimic so what is next will it implants or projectable it is hard to tell but in my thoughts it will be in the realm of a wearable and possibly a wearable projection device. Articale #1 Cast your mind back to late 2008, when the first Android-powered handset saw the light of day. Obama won his first Presidential election, Apple launched its App Store (the iPhone had appeared the year before), Google announced its own Chrome browser and we got our first look at the company's new mobile OS on the T-Mobile G1. The Android of 2013 is a world away from that 2008 version, where the Android Market was in its infancy, there were no native video playback capabilities and the G1 had no multi-touch support. But Google is going to have to keep innovating and improving its mobile OS to keep the lion's share of the smartphone market. We've taken a peek into the future to consider what Android might look like in the year 2020. With new Android monikers now appearing about......

Words: 3468 - Pages: 14

Premium Essay

Tech in Edu

...it has sold more than 240mn units till Jan 2015 and has found its way in many industries including education. There are many schools and universities using tablets to facilitate the learning process. There will be a similar growth in the wearable technology sector. It will majorly affect the media, entertainment and enterprise industries and in a few years find its way in the education sector. Massive Open Online Courses – Coursera, EdX, Khan Academy Aurasma – augmented reality platform being used in educational institutions Synchronization tools, cloud apps file storage, Open Educational resources Google sky map for astronomy Education should adapt with technology/ What to look forward to One of the biggest potential for wearable tech in the future is in HUD’s (Heads Up Displays) There are a few companies that have explored this concept namely Oculus Rift and the recently debuted Microsoft Hololens. These technologies promise to revolutionize the way we interact with computers and want to do away with the keyboard and mouse. There can be multiple uses with Augmented and Virtual reality systems. The possibilities include: 1. Virtual Field trips eg. Deserts and Greenlands of Africa by The Nature Conservancy, PBS LearningMedia – aimed at grades 3 to 8 it is going to be live on Yutube and travels to Burkina Faso and Kenya and students can learn how African farmers used methods to restore farmlands against deforestation and the importance of grasslands and how......

Words: 1818 - Pages: 8

Free Essay

Tech

...new TLF Panel survey conducted on behalf of kids clothing retailer Vertbaudet.co.uk found that four in five parents believe technology and gadgets are good for kids, aiding in their development. The study found that 37 percent of parents asked said that their child spent between one and two hours a day playing with tech gadgets, and 28 percent said between two- and three hours. Moreover, the study found that 38 percent of two- to five-year-olds own an Android tablet, and 32 percent own an iPad; almost a third (32 percent) of these kids also have a mobile phone. The reason behind all this gadget use: over a third of parents (35 percent) said they use tech gadgets to entertain their children because they are convenient, and nearly a quarter (23 percent) because they want their children to be tech-savvy. A 2015 survey of 1,000 British mothers of children aged 2 to 12 found that 85 percent of mums admit to using technology to keep the kids occupied while they get on with other activities. The AO.com survey pointed to children spending on average around 17 hours a week in front of a screen – almost double the 8.8 weekly hours spent playing outside. Wanting our children to tech-savvy is understandable, and the need to keep them entertained will also make sense to many a parent. But we must also weigh up the risks associated with children having too much screen time. In his lecture ‘Managing Screen Time and Screen Dependency’ Dr Aric Sigman argues that “whether it’s Facebook, the......

Words: 3718 - Pages: 15

Premium Essay

Tech

...feel that what they are buying is directed to those who demand the best. So when critics argue that Apple is very controlling over their products and who can develop software’s for them or sell them, you can be sure that, that is exactly how CEO Steve Jobs wants it to be. It’s very clear how this technological mogul has got to where it is, by not compromising or losing focus on what their mission as a company is. Nicholas Bonsack reports, “In a recent Consumer Reports survey focusing on four aspects of customer service for computers — problem solved, phone wait time, and the quality of phone and online support staffs — Consumer Reports subscribers gave Apple the highest marks among the top computer vendors for both laptop and desktop tech support. Apple was the only company to earn top scores in all four categories”(2). Aside from Apple striving to be the most innovative computer and electronic device manufacturer, they also out do themselves when it comes to customer service, which we all wish was true for most of the companies out there. You can say that Apple has found a secret recipe for success, combining innovation, quality, style and an outstanding after sale service. Now it’s not so hard to figure out what all the hype is about. They are profoundly dedicated to solving our problems as consumers, while giving us beautifully simple devices that do what we need them to do and then some. By not being interested in pleasing absolutely everyone, they give their......

Words: 684 - Pages: 3