chapter 1
1. Describe several ways computers play a critical role in modern life.
Computers critical role in modern life is with their applications are commodity. Involved in our aspects daily life.
2. Discuss the circumstances and ideas that led to the development of the modern computer.
Circumstances and ideas that led development of modern computer because people needs grew more and more various, based on what they want and what they need
3. Describe several trends in the evolution of modern computers.
Trends in evolution of modern computers began with discovered first microprocessor by Intel engineers & PC revolutions in
4. Explain the relationship between hardware and software.
Relationship between hardware and software are computer’s versatility divide into 2 parts, hardware (physical part) & software (instructions tells hardware how to transform/ process input data into output. Without them or each one of them, computer is nothing
5. Outline the five major types of computers in use today and describe their principal uses.
Five major types of computers today and their principal uses
-PC’s (word processor, accounting, gaming, digital music & videos)
-Workstations (massive computing power used for high-end interactive applications)
-Portable Computers (no need desktop, easy handle & bring anywhere)
-Servers (provide software & other resources to other computers over network)
-Mainframes (big computing jobs, multiple communications at one time through process of time sharing)
-Supercomputers (fastest access, most powerful computers made)
6. Describe how the explosive growth of the Internet is changing the way people use computers and information technology.
Explosive growth of internet changing way people use computers and IT because with internet, many people buy & use computers each day to access internet network
7. Explain how today’s information age differs from other times in history and prehistory.
Today’s information age differs from other times in history and prehistory because back then in history of society we have had agricultural & industrial age. Now, peoples earn livings working with words, numbers & ideas
8. Discuss the social and ethical impact of information technology on our society.
Social and ethical impact of IT on society: threat to personal privacy, hazard of high-tech crime, abuse information, emergence of bio-digital technology, dangers dependence on complex technology
chapter 2
1. Explain in general terms how computers store and manipulate information.
Computers manipulate information by performing arithmetic/logical (decision-making) operations. Finally, the information being communicated the world outside. Inside computers, information can be move and store in memory
2. Describe the basic structure and organization of a computer.
Basic structure and organization of computer are computers has four main components, there are input & output devices, Central Processing Unit (CPU), also memory & storage devices
INPUT DEVICE (keyboard, pointing devices)-PROCESSOR (CPU)-OUTPUT DEVICES (printer, speakers)
3. Discuss the functions and interactions of a computer system’s principal internal components.
Computer system’s principal internal components is Central Processor Unit (CPU), it functions are: interprets & executes instructions in each program, supervise arithmetic &logical data manipulations, communicates with other parts of computer system indirectly, extraordinarily complex collection of electronic circuits and housed along with other chips & electronic components
4. Explain why a computer typically has different types of memory and storage devices
Computer typically has different types of memory and storage devices it happened because people’s need of it is full of variation
chapter 3
1. List several examples of input devices and explain how they can make it easier to get different types of information into the computer.
-Pointing devices; mouse, touchpad, pointing stick, trackball, joystick, graphics tablet, touch screen, stylus
-Reading Tools; optical mark, magnetic-ink character, bar code, pen scanner, tablet PC, smart whiteboard, RFID
-Digitizer; scanner, digital camera, video digitizer, videoconference, audio digitizer, speech recognition software, sensors
2. List several examples of output devices and the explain how they make computers more useful.
-Screen Output (monitor)
-Paper Output; impact and non-impact printer, multifunction printer, plotter
-Fax Machines and Fax Modems
-Audio Output; sound card, synthesizers
-Other Control Machines; robot arms, telephone switchboards, transportation devices, automated factory equipment, spacecraft, force feedback joystick
3. Explain why a typical computer has different types of storage devices.
Computers begin more useful because it’s not just receives, stores & manipulates information but also provides & gives something that we need, in certain different forms
chapter 4
1. Describe three fundamental categories of software and their relationship.
Fundamental categories of software are compiler/translator, software application software system
2. Explain the relationship of algorithms to software.
Computer system’s hardware equipped to produce whatever output a user requests
3. Discuss the factors that make a computer application a useful tool.
Factors make computer application a useful tool
-Replacing printed documentation with other forms
-Upgrade to adjust with new circumstances & software conditions
-Compatibility
-Disclaimers, software manufacturers not responsible with the software deformity after being installed & used
-Licenses, software can’t legally duplicated
-Distributed via direct sale, retail, mail order, website, website & copyrighted
4. Describe the role of the operating system in a modern computer system.
Role of the operating system in modern computer system it is hardware-software connection. Envisioned to handle complex input our output operations by communicate with a variety of disk drive
5. Describe how file systems are organized.
With logically by system folders
6. Explain why unauthorized copying of software is against the law.
Unauthorized copying software against the law cause a loose of billion dollars each year in business sector
chapter 5
1. Describe how word processing and desktop publishing software have revolutionized writing and publishing.
Word processors revolutionized with processing handwritten words. Otherwise, desktop publishing revolutionized with saves money & time efficiently
2. Describe the basic functions and applications of spreadsheets and other types of statistical and simulation programs.
Basic functions and applications of spreadsheets and other types of statistical & simulation programs is for money managers, automatic mathematics, statistics and data analysis, scientific visualization, computer modeling & simulations
3. Explain how computers can be used to answer “What if?” questions.
Computers can be used to answer “What If?” questions, because with spreadsheets they can allow you to change numbers & instantly see the effect of those changer also equation solvers
4. Explain how computers are used as tools for simulating mechanical, biological, and social systems.
Computers are used as tools for simulating mechanical, biological and social systems because it can create abstract models of objects, organisms, organizations & processes
