ITE 115 - Exam 1 Questions & Answers

What exactly is a computer? - Answer Devices that process data. Help organize, sort and categorize data to turn it into information. What are a computer's four main functions? - Answer 1. Input: Gather Data or allow users to enter data 2. Process: manipulate, calculate, or organize that data 3. Output: display data and information in a form suitable for the user 4. Storage: save data and information for later use What is the difference between data and information? - Answer Data is a representation of a factor idea. Information is data that has been organized or presented in a meaningful fashion. What are bits and bytes, and how are they measured? - Answer The language computers use to process data is called binary language. Consists of two numbers 0 and 1. Each 0 and each 1 is a bit. 8 bits create 1 byte. Each special character consists of 8 bits (1 byte) What devices can I use to get information out of the computer? - Answer Monitors (soft copies). Printers (hard copies). What's on the motherboard? - Answer Contains the CPU which coordinates all other functions on the computer. CPU - Answer Effected by speed of processor, amount of cash memory and amount of processing cores RAM - Answer Where all data and instructions are held while computer is running ROM - Answer Responsible for housing instructions to help start-up a computer Expansion Cards - Answer Have specific functions that augment the computers basic function (often sound or video cards) Where are information and programs stored? - Answer - Hard drive - Permanent storage device - Cloud How are devices connected to the computer? - Answer - USB Port - Firewire ports - Thunderbolt port - HDMI port What's the best way to turn my computer on and off when should it be done? - Answer - Windows 8 - power button or the external button Data - Answer the representation of a fact, a figure, or an idea. Information - Answer Data that has been organized or presented in a meaningful fashion What does the internal hard drive do? - Answer Computer's primary device for permanent storage of software and documents. Non-volatile. Is a 1 TB internal hard drive enough storage? - Answer May be enough but it is a good idea to have an external hard drive or cloud. How many GB does a flash drive hold? - Answer 256 GB What is the fastest port on the market? - Answer The Thunderbolt Port How to add more USB ports? - Answer Expansion card or expansion hub What kind of port is needed to connect an LCD monitor to a notebook computer? - Answer HDMI port Ethernet port - Answer Used to connect a computer to a digital subscriber line (DSL) or cable modem, or a network and transfers data speeds up to 10,000 Mbps Byte - Answer 1 Byte Kilobyte (KB) - Answer About 1 thousand bytes Megabyte (MB) - Answer About 1 million bytes Gigabyte (GB) - Answer About 1 billion bytes Terabyte (TB) - Answer About 1 trillion bytes What factors determine the processing power of a CPU? - Answer The speed of the processor, the number of cores, cache memory and FSB Byte - Answer represents 8 bits of data. One byte can hold about one letter, number or special character Bit - Answer short for binary digit. Each bit represents a 0 or a 1 Petabyte (PB) - Answer About 1,000 Terabytes Processor Speed - Answer Measured in hertz (Hz). Hertz means "machine cycles per second"/ Machine cycle in CPU - Answer process of the CPU getting the data or information from RAM and decoding the instructions into something the computer can understand The type of computer you may find in your automobile is - Answer an embedded computer Supercomputers - Answer perform complex calculations rapidly Monitor screens are made up of millions of tiny dots known as - Answer pixels What is the origin of the Internet? - Answer Government and military officials developed the internet as a reliable way to communicate in the event of war. Eventually, scientists and educators used the internet to exchange research. How does data travel on the Internet? - Answer A computer or other device connected to the internet acts as either a client, a computer that asks for information, or a server, a computer that receives the request and returns the information to the client. Data travels between server and client along communication lines. IP addresses (unique id numbers) are assigned to all computers connected to the internet How can I communicate and collaborate with using Web 2.0 technologies? - Answer Social networking, blogs, wikis, podcasts and webcasts. How can I communicate with others using e-mail and instant messaging? - Answer E-mail allows users to communicate electronically without the users being present at the same time. Instant messaging are programs that enable you to communicate in real time with others who are online What multimedia files are found on the web, and what software is needed to access those files? - Answer Graphics, audio and video clips. Plug-In or player is sometimes needed to view or listen to files. What is e-commerce? - Answer The business of conducting business online. Transactions between B2B, B2C, C2C What online safeguards are available for e-commerce? - Answer Secure website, shopping well known reputable sites, purchase on private computers What is a web browser? - Answer Internet explorer, firefox, chrome, safari What are a URL and its parts? - Answer Uniform Resource Locator. Comprised of - protocol, domain, top level domain, top level domain and paths or sub directories The internet was created to provide - Answer a secure form or communications and a common communications means for all computers Describe an IP address - Answer Referred to as a dotted qua, identifies a website and identifies any computer connecting to the Internet Web 2.0 - Answer Collaborative, user-created web content E-mail and instant messaging - synchronous or asynchronous - Answer E-mail is asynchronous and instant messaging is synchronous Is Firefox an open source web browser? - Answer Yes What web browser feature would be particularly useful when using public computers? - Answer Privacy browsing In the URL Which search engine searches other search engines? - Answer Dogpile What should you do if you want to search for a phrase? - Answer Place quotation marks around the phrase