Basic Components
What is a Computer?
It is an electronic machine that performs many tasks for the user.
What is an expansion slot?
Places on the motherboard where additional hardware pieces can be plugged in.
I store everything on your computer permanently, what am I?
HDD
State the long form of PPM and define it.
Papers Per Minute, measure how fast a printer can output printed paper
Name the four Power Faults
Brown Out, Black Out, Power Spike, Power Surge
Differentiate between Desktop and Laptop.
Desktop Sits on a desk, is immobile and has separate components while laptop sits on your lap, all components are in the machine, and is mobile
What is an expansion card and give 2 examples
Define ROM and give examples
They hold permanent instructions needed to startup a computer. I.E password
What are the two types of printer.
Impact and non-impact.
Differentiate between power surge and power spike
A power surge is when the power increases over a long period of time while a power spike is when power increases unexpectedly for a short time.
What are the 4 basic components?
Monitor, Keyboard, System Unit, Mouse
Describe with examples what a sound card is.
It is used to input and output sound from and to the computer. For example, when you use a headphone set, you speak into the microphone and it records you (input) and when you are listening to music or movies (output).
States the 2 compression techniques and explain them.
Lossy CT reduces the size of a file and its quality will be lost. i.e Picture files. Lossless CT reduces the size of a file but does not diminish its quality. i.e Videos
Lisi Fake was printing her overdue assignment (lol) when the last paper was very unclear and was fading out, what is the Printer Error, provide the solution.
The toner or ink cartridge has run out, Lisi Fake must replace the toner or cartridge.
Sefulu Leach and Tagiilima Snake (lmao) were driving one night when they crashed into an electric pole, which power fault will be the outcome and how can users protect their data when this power fault occurs?
Black Out, users can use an Uninterruptable Power Supply (UPS) this will give users enough time to save their work and properly log out to avoid the loss of data.
Define Peripheral and give at least 4 examples
All devices that can connect to the system unit externally.
Sina Leuila's computer has become slower than usual at processing and is always buffering, How should Sina resolve this problem?
Sina should insert a RAM.
What are the 3 other ways data can be stored? Briefly explain and provide examples for each.
Graphic data is stored in the form of pictures, graphs, etc. Video Data are any recordable audio-visual information in any digital or analog format. i.e mp4, Audio data are any digital information with speech or music stored in and played through the computer i.e mp3
Give 2 examples of printer consumables?
Ink and Paper
Compare and contrast Uninterruptable Power Supply and Surge Protector
Both the UPS and SP will absorb extra power when a power surge and spike occur and then die, however, Surge protector can only protect against Power Surges and Power Spike, UPS however caters to all four power faults by supplying enough power for users when a black out or brown out occurs.
What are the categories of Hardware devices and give examples for each
Input, Output, Processing, Storage, Peripheral.
I am a circuit that connects the computer parts of the motherboard, I carry information from one place to another. What am I?
Bus Lines
Differentiate between the 3 physical types of computer storage and give examples for each.
Magnetic Memory uses a magnetic pen, which can read and write data to their media and must be kept away from magnets i.e HDD, optical memory uses a laser eye to read and write data i.e CD, Transistor memory are tiny chips with no moving parts, they don't have to write or read. i.e RAM
Describe the process of how data reaches the printer.
When a document is printed the data is sent to the cpu as binary numbers, the cpu reads and calculates the binary code and sends the data back to the printer in the form of characters you can read.
What is the relationship between "regularly save" and "power faults"?
Regularly saving is one of the methods used to protect data from being lost due to power faults, users must save often to avoid unknown power faults from destroying data and computers, this saves the users from having to buy or redo entire assignments or work