BTEC IT Level 3 – Unit 1 Information Technology
Systems | Complete Revision Notes & Exam Prep
Guide
What is a digital device?
- CORRECT 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?
- CORRECT 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?
- CORRECT ANSWER-A general-purpose computing device small and cheap enough to be
used by individuals.
,How are PCs able to perform common tasks?
- CORRECT ANSWER-By installing a new software application the computer becomes capable
of performing a new function.
What 3 things do PCs contain?
- CORRECT ANSWER-1. Individual processors
2. RAM
3. hard disk components with expansion ports.
What additional capabilities can be upgraded on a PC?
- CORRECT 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
- CORRECT ANSWER-1. Desktop
2. laptop
How are PCs used in workplace?
- CORRECT ANSWER-Word processing, desktop publishing, spreadsheets, database
management systems, creative tasks (music, film editing).
How are PCs used in personal lives?
- CORRECT ANSWER-Accessing Internet, surfing the web/email, gaming (requires expensive
graphics card normally)
,What is a server?
- CORRECT ANSWER-A computer that manages access to different resources and services
over a network.
How do PCs connect to a server?
- CORRECT ANSWER-Via Ethernet cable and WiFi (forming a network)
What is the difference between servers and PCs?
- CORRECT ANSWER-Contain larger storage capacity, higher processing power and larger
amount of memory.
Give 4 examples of servers?
- CORRECT ANSWER-1. Mail servers
2. web servers
3. print servers
4. file servers
How do web servers work?
- CORRECT 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?
- CORRECT ANSWER-To manage access to web pages.
, Why are mail servers used?
- CORRECT ANSWER-To manage access to email
How do mail servers work?
- CORRECT ANSWER--When you write an email/press send on PC, goes to outgoing mail
server.
-This mail server then sends across a network to recipient's mail server and stores in their
mailbox.
-When recipient logs into their email client the mail server will forward email to their computer.
Why are file servers used?
- CORRECT ANSWER-To store your files such as word processors and spreadsheets so they
are accessible from any computer on the network.
Why are print servers used?
- CORRECT ANSWER-To share access to a printer.
How do print servers work?
- CORRECT ANSWER-By using a print server, you can send your files to print from any
computer on the network.
What is a mobile device?
- CORRECT ANSWER-A computing device that is designed to be portable as it is compact,
light-weight and capable of running for extended periods on battery power.
Systems | Complete Revision Notes & Exam Prep
Guide
What is a digital device?
- CORRECT 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?
- CORRECT 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?
- CORRECT ANSWER-A general-purpose computing device small and cheap enough to be
used by individuals.
,How are PCs able to perform common tasks?
- CORRECT ANSWER-By installing a new software application the computer becomes capable
of performing a new function.
What 3 things do PCs contain?
- CORRECT ANSWER-1. Individual processors
2. RAM
3. hard disk components with expansion ports.
What additional capabilities can be upgraded on a PC?
- CORRECT 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
- CORRECT ANSWER-1. Desktop
2. laptop
How are PCs used in workplace?
- CORRECT ANSWER-Word processing, desktop publishing, spreadsheets, database
management systems, creative tasks (music, film editing).
How are PCs used in personal lives?
- CORRECT ANSWER-Accessing Internet, surfing the web/email, gaming (requires expensive
graphics card normally)
,What is a server?
- CORRECT ANSWER-A computer that manages access to different resources and services
over a network.
How do PCs connect to a server?
- CORRECT ANSWER-Via Ethernet cable and WiFi (forming a network)
What is the difference between servers and PCs?
- CORRECT ANSWER-Contain larger storage capacity, higher processing power and larger
amount of memory.
Give 4 examples of servers?
- CORRECT ANSWER-1. Mail servers
2. web servers
3. print servers
4. file servers
How do web servers work?
- CORRECT 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?
- CORRECT ANSWER-To manage access to web pages.
, Why are mail servers used?
- CORRECT ANSWER-To manage access to email
How do mail servers work?
- CORRECT ANSWER--When you write an email/press send on PC, goes to outgoing mail
server.
-This mail server then sends across a network to recipient's mail server and stores in their
mailbox.
-When recipient logs into their email client the mail server will forward email to their computer.
Why are file servers used?
- CORRECT ANSWER-To store your files such as word processors and spreadsheets so they
are accessible from any computer on the network.
Why are print servers used?
- CORRECT ANSWER-To share access to a printer.
How do print servers work?
- CORRECT ANSWER-By using a print server, you can send your files to print from any
computer on the network.
What is a mobile device?
- CORRECT ANSWER-A computing device that is designed to be portable as it is compact,
light-weight and capable of running for extended periods on battery power.
