Free Essay

Computer

In: Business and Management

Submitted By dreemyour
Words 1370
Pages 6
Discovering Computers 2011

Chapter 4

DISCOVERING COMPUTERS 2011
CHAPTER FOUR: THE COMPONENTS OF THE SYSTEM UNIT PROBLEM SOLVING TIP SHEET
Use this Tip Sheet as suggested starting points for the Problem Solving exercises.

Problem Solving @ Home
1. Malfunctioning Speakers While working on a homework assignment, you decide to listen to one of your favorite music CDs through your computer speakers. The media player program on your computer automatically starts when you insert the CD. Although it looks like the CD is playing, no sound is coming from your speakers. What might be causing this? What is the first step that you will take to correct this problem? The sound might be muted or the volume turned down; adjust accordingly There may be a problem with your computer recognizing the sound card; check the drivers

2. Optical Disc Drive Stuck While using your computer, you attempt to open the optical disc drive to insert an installation disc for a program you wish to install. The drive, however, does not open when you press the eject button. The drive opened a few minutes prior, when you removed a music CD. What steps will you take to open the drive before calling technical support? Restart the computer. If the problem persists after restarting the computer, shut the computer down and insert the end of a paperclip into the small hole in the optical disc drive (if one exists) to open the drive manually. If necessary, check with technical support or your computer’s documentation before doing this

3. Removing Germs While recovering from an illness, you realize that by using your computer during your illness, you probably left some germs behind on the keyboard and mouse. How will you clean these devices so that your family members will not become sick? Purchase a cleaning product safe for your computer and wipe down your keyboard, mouse, screen, and any other area that might harbor germs

4. Computer Will Not Boot To remedy your computer’s slow performance, you installed additional memory. After the installation, you close your computer case, connect the power and all peripheral devices, and turn on the computer. Although your computer turns on, it beeps in rapid succession, it is not responding, and the operating system does not start. What might be causing this? The memory might have been installed incorrectly / not seated properly You installed an incorrect type of memory, or the memory is bad

5. Numerous Memory Types You have decided to purchase additional memory for your computer in order to better support the latest version of the Windows operating system. At the local computer store, you notice that not only are different types of memory for sale, but different sizes are available. What will you do to ensure that you get the proper memory for your computer? Check your computer’s documentation to learn the correct type of memory to install, how much memory you currently have, and the maximum amount of memory your computer can support Check with a sales associate for professional assistance

1

Discovering Computers 2011

Chapter 4

6. Missing Songs During the past several months, you downloaded more than 1,000 songs to your portable media player. Tonight, when you turn on your portable media player, it is not able to locate any of your songs and an error message displays on the screen. What might be causing this? The portable media player might have failed You might have to synchronize your portable media player with your computer

7. Uncommon Memory Card Size Recently, you purchased a smart phone that is capable of storing pictures, music, and videos on a memory card. The memory card, which you purchased separately, works with your smart phone, but you cannot find a slot on your computer’s card reader that will accept the card. Furthermore, you have been unable to find a card reader that can accept this particular type of memory card. Given your predicament, how can you transfer the pictures from your memory card to your computer? Check to see whether your phone can connect to your computer via USB Check for an adapter that will adapt your memory card to a standard size

Answers to Problem Solving - Collaboration exercise will vary. Problem Solving @ Work
1. Update Issue You just installed some Microsoft updates on your computer, which is running the latest version of the Windows operating system. The updates required you to reboot your computer immediately following their installation. When the desktop appears, the sizes of the icons and other elements on your screen have increased. Why might the update have caused this? What could you do to return the screen elements to their original sizes? Windows might have updated the drivers for your video card. Check your display settings and return them to their previous values. If problems persist, you might have to uninstall the update or check with your technical support department

2. Printer Port Problem A colleague received a new printer and has delivered her old printer to your desk for your use. When attempting to plug the printer in a port on the back of your computer, you see that the connector will not fit in any of the available ports. You also notice that even the ports that are in use will not accept the connector. What steps will you take so that you can use the printer? You might need an adapter card to accept the printer cable You may be able to purchase / obtain an adapter that converts the connector at the end of the printer cable into one that a port on your computer can accept

3. USB Device Not Working You purchased a new USB external hard disk so that you can take work home.
After plugging the hard disk in a USB port on your computer, the other USB devices stopped working, and the external hard disk does not work. You return to the store to exchange the hard disk, but the same problem occurs with the new device. Why might this be happening? What steps will you take to resolve this problem? The power supply on your computer might not be able to support the portable hard disk The USB port(s) on your computer might be faulty

4. Noisy Fan After moving to a new office, you turn on your computer for the first time and hear a buzzing sound inside the case. You turn off your computer, the noise winds down, and you wait several minutes before turning the back on. When you turn on your computer again, however, the noise resumes. What could be causing this? You might have disrupted / damaged the hardware inside the computer during the move The inside of the computer needs to be cleaned

5. Slots Unavailable Your computer is running slowly, and technical support informs that they will install additional memory to help boost your computer’s performance. A technician removes your computer, returns

2

Discovering Computers 2011

Chapter 4

it one hour later, and informs you that no slots are available to accommodate additional memory. What might the technician be able to do to increase your computer’s memory? Use higher-capacity memory to replace memory in the existing slots

6. Incorrect System Date and Time While using your computer, you notice that the date and time are incorrect. You correct the date and time settings, continue using your computer, and then power it off before leaving work. When you arrive to work the next morning and turn on the computer, the date and time once again are incorrect. What might be causing this, and what is the first step you might take to solve this problem? The internal battery in your computer might be dead; contact technical support for a replacement

7. Dirty Fan While using your computer, you notice that the fan that removes the hot air from the inside of the computer has stopped running. You immediately turn off your computer to prevent it from overheating and notice that the fan is coated with dust. How will you clean the fan? Use compressed air to blow the dust off of the fan and away from the computer

Answers to Problem Solving - Collaboration exercise will vary.

3

Similar Documents

Free Essay

Computer

...Computer The word'computer ' is an old word that has changed its meaning several times in the last few centuries.The Techencyclopedia(2003) defines computer as " a general purpose machine that processes data according to a set of instructions that are stored internally either temorarily or permanently" Computer history The trem history means past events.It indicates the gradual development of computers.Here we will discuss how this extraordinary machine has reached of it's apex. In the begining............................... The history of computers starts out about 2000 years ago, at the birth of the 'abacus' a wooden rack holding two horizontal wires with breads strung on them.Just like our present computer,abacus also considered a digit as a singal or codeo and processed the calculation. Blasie Pascal ists usually credited to building the first digital computer in 1942.It added numbers to help his father.In 1671,Gottofried Wilhelm Von Leibniz invented a computer that was built in 1694.It could add,and, after changing somethings around,multiply. Charles Babbage: A serious of very intersting developement in computer was started in Cambridge,England,by Charles Babbage, a mathmatics proffessor.In 1982,Babbge realized that many lng calculations,espically those need to make mathematical tabes ,were really a series of predictable actions that were constantly repated.From this he suspected that it should...

Words: 995 - Pages: 4

Premium Essay

Computer

...Computer From Wikipedia, the free encyclopedia Jump to: navigation, search For other uses, see Computer (disambiguation). "Computer technology" redirects here. For the company, see Computer Technology Limited. A computer is a programmable machine designed to sequentially and automatically carry out a sequence of arithmetic or logical operations. The particular sequence of operations can be changed readily, allowing the computer to solve more than one kind of problem. Conventionally a computer consists of some form of memory for data storage, at least one element that carries out arithmetic and logic operations, and a sequencing and control element that can change the order of operations based on the information that is stored. Peripheral devices allow information to be entered from external source, and allow the results of operations to be sent out. A computer's processing unit executes series of instructions that make it read, manipulate and then store data. Conditional instructions change the sequence of instructions as a function of the current state of the machine or its environment. The first electronic computers were developed in the mid-20th century (1940–1945). Originally, they were the size of a large room, consuming as much power as several hundred modern personal computers (PCs).[1] Modern computers based on integrated circuits are millions to billions of times more capable than the early machines, and occupy a fraction of the space.[2] Simple computers...

Words: 6579 - Pages: 27

Free Essay

Computer

...A proxy server is a computer that acts as an intermediary between the users computer and the Internet. It allows client computers to make indirect network connections to other network services. If use proxy server, client computers will first connect to the proxy server, requesting some resources like web pages, games, videos, mp3, e-books, any other resources which are available from various servers over Internet. As soon as getting such request, the proxy server will seek for the resources from the cache in its local hard disk. If the resources have been cached before, the proxy server will return them to the client computers. If not cached, it will connect to the relevant servers and request the resources on behalf of the client computers. Then it caches resources from the remote servers, and returns subsequent requests for the same content directly Functions of a proxy server * Help improve web performance by storing a copy of frequently used webpages * Help improve security by filtering out some web content and malicious software * Content filtering * Spying * To keep machines behind it anonymous (mainly for security). * To speed up access to resources (using caching). Web proxies are commonly used to cache web pages from a web server. * To apply access policy to network services or content, e.g. to block undesired sites. * To log / audit usage, i.e. to provide company employee Internet usage reporting. * To bypass security/ parental...

Words: 691 - Pages: 3

Premium Essay

Computer

...ages before, when there were no computers or any other technologies. So much we have advanced that now every information is just a click away and is in your hands 24/7. All this advancement was possible only with the introduction of a small device called the “Computer”. Computers Image Curtsey: csntrust.org.nz/attachments/Image/PC-picture-1.jpg?1367216528141 Basically, computer is a device that accepts the message by the imputer and processes this message and stores the information at the storage devices and later gives an output of the message through the output devices. A simple explanation of the computer. Normally, a computer consists of a processing unit called the Central Processing Unit or the CPU and a form of memory. In the years between 1940 and 1945 were the first electronic digital computers developed. The initial sizes were as big as a room and consumed power as much as today’s personal computers. Initially, computer was related to a person who carries out calculations or computations and as such the word computer was evolved in 1613 and continued till the end of 19th century. Later it as re-described as a machine that carries computations. The early computers were limited in their functions. It was the fusion of automatic calculation and programmability that produced the first computers that were recognized in 1837. Charles Babbage in 1837 was the first to introduce and design a fully programmed mechanical computer, his analytical engine. Due to limited...

Words: 999 - Pages: 4

Free Essay

Computer

...Assembly Language Programming Lecture Notes Delivered by Belal Hashmi Compiled by Junaid Haroon Preface Assembly language programming develops a very basic and low level understanding of the computer. In higher level languages there is a distance between the computer and the programmer. This is because higher level languages are designed to be closer and friendlier to the programmer, thereby creating distance with the machine. This distance is covered by translators called compilers and interpreters. The aim of programming in assembly language is to bypass these intermediates and talk directly with the computer. There is a general impression that assembly language programming is a difficult chore and not everyone is capable enough to understand it. The reality is in contrast, as assembly language is a very simple subject. The wrong impression is created because it is very difficult to realize that the real computer can be so simple. Assembly language programming gives a freehand exposure to the computer and lets the programmer talk with it in its language. The only translator that remains between the programmer and the computer is there to symbolize the computer’s numeric world for the ease of remembering. To cover the practical aspects of assembly language programming, IBM PC based on Intel architecture will be used as an example. However this course will not be tied to a particular architecture as it is often done. In our view such an approach...

Words: 85913 - Pages: 344

Premium Essay

Computer

...new releases and upgrades are made available from time to time. The database administrator will be aware of any new versions or upgrades to existing versions that could improve the efficiency of a currently installed database. In some circumstances database administrators are authorized to upload free upgrades and install them. In the event that a new version is available, the administrator will check with others in the company to determine if the cost of replacing the existing database software is worth the investment. Earnings for this job as of 2012 median of $77,080 per year and about $37.06 per hour, but the earnings can reach up to about $118,720; in the top 10 percent. Entry level education for this job is a bachelor’s degree in computer science, information science, or management information systems. The Bureau of Labor Statistics projects 15.1 percent growth of employment for database administrators;...

Words: 318 - Pages: 2

Premium Essay

Computer

...ile Format: PDF/Adobe Acrobat - Quick View by G Vink - 1998 - Cited by 1 - Related articles software-hardware interface debugging in an embedded environment. ... materials and processes used in manufacturing semiconductors, through to electronic design tools, packaging .... Next to this, for him, peripheral simulation is ... www.tasking.com/resources/debugtechn-trends.pdf ► The Technology Of Hims: Hardware, Software, Peripheral And ... Nov 9, 2010 ... The Technology of HIMS: Hardware, Software, Peripheral and Processes. Healthcare Information Management Systems (abbreviated as HIMS) are ... www.termpaperwarehouse.com/...Technology-Of-Hims-Hardware-Software/ 25880 - Cached About: Macs - Macintosh Hardware & Software Reviews, Tips, Guides ... Jan 9, 2011 ... Get the inside scoop on Macintosh hardware and software, plus tips ... Take a look at the process my wife and I experienced when we took the ... macs.about.com/ - Cached - Similar Motion Computing - Tablet PCs and Peripherals - Alliance Partners ... Sharing databases and processes, they'll help you improve communication and ... B Sharp Technologies is a software and services company providing web-based healthcare ... medical record) and HIM (health information management) software to .... in software licenses, software upgrades, hardware, and IT support. ... www.motioncomputing.com/partner/alliance.asp - Cached - Similar Critical Success Factors in Establishing the Electronic Health ... The electronic health record...

Words: 426 - Pages: 2

Premium Essay

Computer

...What is Computer : Computer is an electronic device that is designed to work with Information.The term computer is derived from the Latin term ‘computare’, this means to calculate.Computer can not do anything without a Program.it represents the decimal numbers through a string of binary digits. The Word 'Computer'usually refers to the Center Processor Unit plus Internal memory. Computer is an advanced electronic device that takes raw data as input from the user and processes these data under the control of set of instructions (called program) and gives the result (output) and saves output for the future use. It can process both numerical and non-numerical (arithmetic and logical) calculations.The basic components of a modern digital computer are: Input Device,Output Device,Central Processor. A Typical modern computer uses LSI Chips. Charles Babbage is called the "Grand Father" of the computer.The First mechanical computer designed by charles Babbage was called Analytical Engine. It uses read-only memory in the form of punch cards. Four Functions about computer are: accepts data | Input | processes data | Processing | produces output | Output | stores results | Storage | Input (Data): Input is the raw information entered into a computer from the input devices. It is the collection of letters, numbers, images etc. Process: Process is the operation of data as per given instruction. It is totally internal process of the computer system. Output: Output...

Words: 1953 - Pages: 8

Premium Essay

Computers

...The History of Computers From primitive abaci to lab tops and calculators, the computer has evolved through time to become the essential part of our technocratic society. The development of the computer has shaped the way technology and science is viewed in different cultures around the world. The connotation of what a computer is nowadays brings to mind a monitor, keyboard, processor and its other electronic components; however, that is not how things have always been. From the Chinese using abaci to count, to the Druids' usage of stones to follow the seasonal changes, to the Europeans using Pascalines and calculators to work out mathematical problems the concept of the computer has been around for hundreds of years (Hoyle). Therefore, the history of computers is important to observe not only for the influence it brought to our culture, but the progress it has made through time. The history of modern computers has been influenced by the earlier advancement of primordial technology. The abacus developed in circa 500 B.C for example, used pebbles, rocks, beads, or shells to keep track of the counters numbers. Furthermore, "the abacus was man's first attempt at automating the counting process" (Hoyle). In addition, the Pascaline, invented and built by a French philosopher and mathematician Blaise Pascal, was the first mathematical adding machine (Long 54). The Pascaline was a gear-driven machine that allowed the user to calculate answers without doing arithmetic (Hoyle). In...

Words: 803 - Pages: 4

Premium Essay

Computer

...Computer A computer is a programmable machine that receives input, stores and manipulates data, and provides output in a useful format. A computer can process data, pictures, sound and graphics. They can solve highly complicated problems quickly and accurately. Block Diagram Input Unit: Computers need to receive data and instruction in order to solve any problem. Therefore we need to input the data and instructions into the computers. The input unit consists of one or more input devices. Keyboard is the one of the most commonly used input device. Other commonly used input devices are the mouse, floppy disk drive, magnetic tape, etc. All the input devices perform the following functions.  Accept the data and instructions from the outside world.  Convert it to a form that the computer can understand.  Supply the converted data to the computer system for further processing. Storage Unit: The storage unit of the computer holds data and instructions that are entered through the input unit, before they are processed. It preserves the intermediate and final results before these are sent to the output devices. It also saves the data for the later use. Memory Size: All digital computers use the binary system, i.e. 0’s and 1’s. Each character or a number is represented by an 8 bit code. The set of 8 bits is called a byte. A character occupies 1 byte space. A numeric occupies 2 byte space. Byte is the space occupied in the memory. The size of the primary storage...

Words: 9444 - Pages: 38

Premium Essay

Computer

...COMPUTER HARDWARE AND COMPONENTS COMPUTER HARDWARE AND COMPONENTS Computer Basics     Equipment (Hardware) COMPUTER | A machine that processes information and performs computations. | Tower or Desktop | The "box" or case that holds the parts that make up a computer:  CPU, hard disk drive, floppy drive, memory chips, power supply, interface cards, etc. Click here to learn more. | |      CPU | Central Processing Unit, or "brains" of the computer | Monitor | An output display device (looks similar to a TV) in a computer system.  You see information on the monitor's screen. | |      Screen | The viewing area on a monitor or the information or image displayed. | | | | Disk Drive | A device that reads data from (input) or records data onto a disk for storage (output). |     Floppy  | Floppy Drive | . 3-1/2" Floppy Disk |     Hard Drive | The main device that a computer uses to store information. Most computers come with a hard drive, called drive C, located inside the computer case. |     CD-ROM | ROM means Read-Only-Memory - you can only "read" information, not save. A CD can store a large amount of data including documents,  photographs, software, and music (about 20 songs) | | CD Drive | Compact Disk | | CD-R A CD-Recordable drive can put data onto a disk in just one session, and then is "closed" - one "burn" only - you can't add to it after you create it.  | CD-RW A CD-ReWritable drive can be written onto more than once - similar...

Words: 2913 - Pages: 12

Premium Essay

Computer

...(introduction) What is a Computer? B. History of computers C. (thesis) Types of computer 4.1 Supercomputer 4.2 Mainframe 4.3 Workstation 4.4 The Personal Computer or PC 4.5 Microcontroller 4.6 Server D. Hardware & software 5.7 hardware 5.8 software 5.9 firmware E. Basic operations 6.10 input 6.11 output 6.12 processing 6.13 storage F. Names for different sizes of data 7.14 Bit 7.15 Byte 7.16 kB 7.17 MB 7.18 GB 7.19 TB 7.20 PB G. Measurement of data speed 8.21 Mbps 8.22 Gbps H. Purpose of computer 9.23 performing calculations 9.24 storing data 9.25 retrieving data 9.26 processing data INTRODUCTION: WHAT COMPUTER IS? I. What is computer? A computer is a "box" that you put some "stuff" in, the box does "stuff" with it, and then the box has some way of showing the world what it's done. The stuff you put into a computer is called data, and gets into the computer using the input. Data is simply a form of information. You can put data into a computer by your keyboard, a mouse, a trackpad, a camera, an infrared sensor; anything that will give the computer more information about the world around it. Based on what information the computer has gotten, it can decide to do stuff with it. What the computer does with information is known as processing. A computer will process information...

Words: 2841 - Pages: 12

Premium Essay

Computer

...types of computers, the computers are classified according to their functions and capabilities, as: Sample essay analysis ... Types of Computers - College Essay - Scodger - StudyMode.com www.studymode.com › ... › Computers & Internet › Computer Hardware‎ Types of computers. Firstly, what is a computer? Well, a modern computer is typically an electronic or digital device that manipulates data. Computers can ... Types of Computers - Term Papers - Maliktaimurarif www.termpaperwarehouse.com › Computers and Technology‎ May 9, 2012 - Read this essay on Types of Computers . Come browse our large digital warehouse of free sample essays. Get the knowledge you need in ... History of Computers Essay - Custom Writing Service www.customwritings.com/blog/...essays/history-computers-essay.html‎ You can order a custom essay, term paper, research paper, thesis or dissertation on History of Computers topics at our professional custom essay writing service ... Computer Technology Essay - Custom Writing Service www.customwritings.com/blog/...essays/computer-technology-essay.html‎ Free sample essay on Computer Technology: Since the beginning of time ... Computers play a significant role in the school system as well. ... Categories. Essay of computer and its uses - WikiAnswers wiki.answers.com › ... › Categories › Technology › Computers‎ ... Categories > Technology > Computers > Essay of computer and its uses? ... computer is a...

Words: 470 - Pages: 2

Premium Essay

Computers

...Computers Today’s generation could never ever imagine in their wildest dreams about the world, ages before, when there were no computers or any other technologies. So much we have advanced that now every information is just a click away and is in your hands 24/7. All this advancement was possible only with the introduction of a small device called the “Computer”. Basically, computer is a device that accepts the message by the imputer and processes this message and stores the information at the storage devices and later gives an output of the message through the output devices. A simple explanation of the computer. Normally, a computer consists of a processing unit called the Central Processing Unit or the CPU and a form of memory. In the years between 1940 and 1945 were the first electronic digital computers developed. The initial sizes were as big as a room and consumed power as much as today’s personal computers. Initially, computer was related to a person who carries out calculations or computations and as such the word computer was evolved in 1613 and continued till the end of 19thcentury. Later it as re-described as a machine that carries computations. The early computers were limited in their functions. It was the fusion of automatic calculation and programmability that produced the first computers that were recognized in 1837. Charles Babbage in 1837 was the first to introduce and design a fully programmed mechanical computer, his analytical engine. Due to limited finances...

Words: 986 - Pages: 4

Premium Essay

It on Computers

...The computer is the most wonderful gift of science to the modern man. The computer can do all the works of man. Thus, after the invention of computer, the gap between man and machine has been bridged up. The dictionary meaning of the word "Computer" is an electronic calculating machine. It is derived from the word compute which means to reckon. But the function of the computer has expanded beyond the act of reckoning. Though a machine, it contains and provides innumerable information's and artificial intelligence of a very high order. It may seem strange, but it is true that the memory and intelligence of a computer can surpass those of a living human being. The mechanism of the computer is very simple. Information processing is the essence of computing. It is a data based machine. The data is fed into the machine. The machine is manipulated and then the due information is retrieved. Computer was invented due to the pressures of World War-II which witnessed the use of such sophisticated weapons as night bombers, submarines, and long range guns on ships and tanks, etc. The defenders have to fight back by shooting at targets and those targets of the enemy can be located by radar. Radar can inform not only about the location of the enemy but also about the direction and the speed of the enemy weapons. Detailed mathematical calculations are necessary to find out these things accurately. Firing tables are required by the front line soldiers. Thus the necessity of calculations...

Words: 584 - Pages: 3