Chapter 1

Name : Genesius Hartanto
NIM : 1701308971
Class : 01PCT
Professor : Mr. Tri Djoko Wahjono, Ir., M.Sc.

1. why is computer literacy vital in today's world ?
-> Computer literacy is vital in today's world as much of the world because the world relies on computers for doing the day to day activities. Computer literacy is the knowledge and the ability to use the computers and technology efficiently. The goal of every computer literate person is to be able to use them with ease and learn to use the computer programs without much problem.

2. What is a computer, and what is the relationship between data and information ?
-> A computer is a programmable machine. The two principal characteristics of a computer are: it responds to a specific set of instructions in a well-defined manner and it can exevute a prerecorded list of instructions. And The relationship that lies between data and information is a solid one. Data is termed as raw facts such as phone numbers or addresses, while on the other hand information is the actual organization of these raw facts in a meaningful manner. This information may be in the form of a well organized report or table and but not always be meaningful to everyone.

3. list and describe the five component of a computer ?
->The five basic elements of a computer system include: storage, arithmetic and logic unit, control unit, input as well as the output. The storage element is also referred to as the memory unit and it normally stores both the data and instructions of a program.

4. what are the advantages and disadvantages that users experience when working with computers ?
->

Advantage: 1. gain knowledge 2. Useful 3. On the move 4. what's next? 5. have to buy one. Disadvantage: 1. Spoil eye sight if look on the monitor to much 2. Expensive to buy a computer. 3. If spoil have to go repair 4. Porn stuff 5. Ruined your life

5. what is a network, and what are it's benefits ?
-> A network consists of two or more computers that are linked in order to share resources (such as printers and CD), exchange files, or allow electronic communications. The computers on a network may be linked through cables, telephone lines, radio waves, satellites, or infrared light beams. 
and it's benefits are :
(1) Computers which are connected through a network can share resources as hard drives, printers, scanners etc with each other. 
(2) They can send file from one computer to another quite easily.
(3) You can connect all the computers which are connected through a network to the internet by using a single line. So it means that you can save the connection cost for each computer but you internet connection must be fast.
(4) IF you want to access data from the other computer which is the part of network then you can access data from that computer.
(5) Users can run those programs which are not installed on their computers but are installed on any other user's computer.

6. how are the internet and world wide web used ?
-> The Internet works by allow every network to connect to every other network. This is what makes it possible for anyone to create content, offer services, and sell products without requiring permission from a central authority. but for world wide web You could use a "browser" and related computer software to "connect" your computer to information sources connected to the web somewhere else, making copies of data files or streams that your computer can display, store, play, run, or whatever. 

7. how is system software different from application software ?
->The Difference between system software and application software is that, system software can run independently of the application software, while application software cannot run without the presence of the system software. System software gets installed when the operating system is installed on the computer, while application software is installed according to the requirements of the user.

8. what are the differences among the types, sizes, and functions in the following categories : personal computers(desktop), mobile computers and mobile devices, game consoles, servers, mainframes, super-computers, and embedded computers ?
->

• A personal computer is a computer that can perform all of its input, processing, output, and storage activities by itself.
• A mobile computer is a personal computer you can carry from place to place, and a mobile device is a computing device small enough to hold in your hand. 
• A game console is a mobile computing device designed for single-player or multi-player video games. 
• A server controls access to the hardware, software, and other resources on a network and provides a centralized storage area for programs, data, and information. 
• A mainframe is a large, expensive, powerful computer that can handle hundreds or thousands of connected users simultaneously and can store tremendous amounts of data, instructions, and information. 
• A supercomputer is the fastest, most powerful, and most expensive computer andis used for applications requiring complex, sophisticated mathematical calculations. 
• An embedded computer is a special-purpose computer that functions as a componentin a larger product.

9. what is the role of each element in an information system ?
-> An information system combines hardware, software, data, people, and procedures to produce timely and useful information.  People in an information technology (IT) department develop procedures for processing data. Following these procedures, people use hardware and software to enter the data into a computer. Software processes the data and directs the computer hardware to store changes on storage media and produce information in a desired form.

10. how do the various types of computer users interact with computers ?
->

• Computer users can be separated into five categories: home user, small office/home office user, mobile user, power user, and enterprise user. 
• A home user is a family member who uses a computer for a variety of reasons, such as budgeting and personal financial management, Web access, communications,and entertainment. 
• A small office/home office (SOHO) includes any company with fewer than 50 employees, as well as the self-employed individual who works from home.
• Mobile users are employees and students who work on a computer while away from a main office, home office, or school. 
• A power user uses a workstation or other powerful computer to work with industry-specific software. 
• An enterprise user works in or interacts with a company with many employees and uses a computer and computer network that processes high volumes of transactions in a single day.

11. how does society use computers in education, finance, government, health care, science, publishing, travel and manufacturing ?
->

• In education, students use computers and software to assist with learningor take distance learning classes. 
• In finance, people use computers for online banking and online investing.
• Government offices have Web sites to provide citizens with up-to-date information, and government employees use computers as part of their daily routines.
• In health care, computers are used to maintain patient records, monitor patients, deliver medication to nurse stations via robots, assist with medical tests and research, correspond with patients, file insurance claims, provide greater precision during operations, and as implants. 
• All branches of science use computers to assist with collecting, analyzing, and modeling data and to communicate with colleagues around the world.
• Publishers use computers to assist in designing pages and make the content of their works available online. 
• Many vehicles use some type of online navigation system to help people travel more quickly and safely.
• Manufacturers use computer-aided manufacturing (CAM) to assist with manufacturing processes.