Intro to Computers
Computer Hardware
Files and Software
Ports and Local Area Networks
The Internet
100
What 4 components make a computer, a computer?
Input, Output, Processing, Storage
100
What does the motherboard do?
It is the "body" of the computer, it connects all the other parts together, and allows connections with peripherals.
100
Explain the difference between .png and .jpg files
.png supports transparency in pictures whereas a.jpg does not.
100
What are the benefits of having a wired connection compared to a wireless connection?
Faster, better security, more reliable
100
What are the 3 ways in which bits travel through the internet?
Electricity, light, radio waves
200
The decimal number 16 is equivalent to the number ___ in the binary number system (represent the answer in a byte)
00010000
200
UHD refers to the same resolution as...
a. 8K
b. 4K
c. 1080p
d. 720p
b. 4K
200
Give one example of system software and one example of application software
System Software: Operating systems, file management, compilers, debuggers, BIOS
Application Software: Games, browsers, word processors, powerpoint, etc.
200
What type of port / cable is used for connecting devices in a wired local area network?
Ethernet
200
What is latency?
The time it takes for one bit to travel from the source to the requested device
300
Explain why computers use the binary number system.
Computers communicate / manipulate information using electricity through wires, which can only represent 2 states (on/off)
300
Apart from HDDs and SSDs, what is another example of storage?
External Hard Drives / USB Drives / CD / Floppy Disks
300
What is .mp4 used for?
A comprehensive media extension, capable of holding audio, video and other media.
300
Explain the difference between HTTP and HTTPS
HTTPS is an encrypted connection whereas HTTP is not.
300
Explain the purpose of transmission control protocol (TCP)
Transmission Control Protocol is a standard meant to ensure loss-less data transmission and is responsible for reliable transmission of packets.
400
The binary number 01010101 is equivalent to the number _____ in a decimal number system
85
400
Name all 7 parts of a computer that were discussed in class.
Processor (CPU)
Graphics Card (GPU)
Memory (RAM)
Hard Drives / Storage (HDD / SSD)
Motherboard
Power Supply (PSU)
Case
400
How many bits are in a kilobyte?
8000 or 8192
400
Universal Serial Bus (USB) is an industry standard that establishes two things. What are they?
1. Specifications for cables and connector types
2. Protocols for connection, communication and power supply (interfacing) between computers, peripherals and other computers.
400
Explain the steps it takes to access a website using the domain name system.
1. Computer contacts a domain name server with the domain name entered by the user
2. The domain name server returns an IP address associated with the domain name
3. Computer connects to website using the IP address that was returned.
500
Set A to always be 1. Draw the truth table for the following logic gate:
500
Explain the similarities and differences of the CPU and GPU
Similarities: They are both processors that manipulate information from an input to an output
Differences: Whereas a CPU processes information for all parts of the computer, a GPU focuses on processing graphics output to the user.
500
Explain the difference between application software and system software.
Application software is a program or group of programs that is designed for the end user.
System software is a type of computer program or group of programs that are designed to run a computer’s hardware and application programs.
500
Describe the similarities and differences between USB-C and Thunderbolt 3
Thunderbolt 3 uses the same connector type as USB-C, but has several extra features on top of the standard USB-C protocol including faster speeds and compatibility with all devices that require a Thunderbolt 3 connection.
500
Explain what cookies are.
A cookie is a file put on your hard drive by a website you visited. Then, when you visit the site again later, it can look at that file (cookie) and remember what it put there. The cookie usually holds information like your user name, what products you looked at, and what kind of options you choose on the site.