BTEC IT Level 3 - Unit 1 | 698 Questions and Answers(A+ Solution guide)

What is a digital device? - Answer-Piece of physical equipment that uses digital data, such as by sending, receiving, storing or processing it. What 9 types of digital devices are there? - Answer-1. Personal Computers 2. Mobile Devices 3. Servers 4. Entertainment Systems 5. Navigation Systems 6. Multifunctional Devices 7. Digital Cameras 8. Data capture and Collection Systems 9. Communication devices and systems What is a personal computer? - Answer-A general-purpose computing device small and cheap enough to be used by individuals. How are PCs able to perform common tasks? - Answer-By installing a new software application the computer becomes capable of performing a new function. What 3 things do PCs contain? - Answer-1. Individual processors 2. RAM 3. hard disk components with expansion ports. What additional capabilities can be upgraded on a PC? - Answer-Replacing hard disk, more storage or adding a graphics card to an expansion port, improves graphics processing power. Give 2 examples of a PC - Answer-1. Desktop 2. laptopHow are PCs used in workplace? - Answer-Word processing, desktop publishing, spreadsheets, database management systems, creative tasks (music, film editing). How are PCs used in personal lives? - Answer-Accessing Internet, surfing the web/email, gaming (requires expensive graphics card normally) What is a server? - Answer-A computer that manages access to different resources and services over a network. How do PCs connect to a server? - Answer-Via Ethernet cable and WiFi (forming a network) What is the difference between servers and PCs? - Answer-Contain larger storage capacity, higher processing power and larger amount of memory. Give 4 examples of servers? - Answer-1. Mail servers 2. web servers 3. print servers 4. file servers How do web servers work? - Answer--Web server stores the web page and associated files. -Client computer makes request for a web page to server (by entering URL). -Web server locates correct files and sends back to client. Why are web servers used? - Answer-To manage access to web pages. Why are mail servers used? - Answer-To manage access to email