Virtual storage is when you combine multiple drives into one to increase performance and storage. This is mainly used in enterprise level when a single drive is not sufficient enough for multiple people accessing one file at a time. However, building a network-attached storage device (NAS) is very expensive so bringing multiple devices together and …
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1.1.3: Magnetic, Flash, and Optical Storage
Magnetic Storage: This is a hard drive that uses physical disks to store data on. It is very common on computers and data centers. They are high-capacity and relatively cheap, but are lower in performance compared to the more modern solid state drives. It is a good storage option for a good compromise between capacity, …
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1.1.3: RAM & ROM
RAM – Random Access Memory. RAM is a type of primary storage and is the main place for storing instructions while a program is being run. Data must be copied to the primary storage (RAM) from the secondary storage (Hard drive) before being executed by the CPU. For example, your OS and any programs open …
1.1.3: TouchScreens
There are 3 types of touchscreens: Resistive, Capacitive, and Infrared Resistive: This is where there are 2 conductive layers with current going through them underneath the screen, seperated by tiny dots. When you press down on it the 2 layers touch and the electrical current changes at that point. The software then recognizes this change …
1.1.3: Sensors and Actuators
Sensors: A device that detects a physical change in its environment and sends information to another electronic device. Actuator: A device that causes another machine operate. Basically the ‘mover’. Factor being measured Sensor Actuator Light LDR, Photodiode, Photo-transistor, Solar Cell Light, Display, Fibre-Optics Temperature Thermostat, Thermistor Heater, Fan Force/Pressure Pressure Switch, Strain Gauge Lifts, Electromagnet …
2.1 Computational Thinking
Computational thinking is to think logically. 2.1.1 Abstraction: Levels of abstraction: The more abstract something is the less detail is shown, vice versa. Data always starts as reality before being abstracted. There are 3 levels of abstraction: Physical level, Logical level, and View level. Physical being the lowest. Reality -> Physical -> Logical -> View …
1.1.3 – Input, Output and Storage
Input – Something that is given to a device to begin a process. Output – Information that is processed and sent out by a device. Storage – Something that retains information. Scanners: They take printed media to generate a digital bitmap of an image. Common use is to digitize photos or to perform character recognition. …
Mastermind Number Generator Game
I have created a code using Python for a game that will generate a random 4 digit number and make you guess it. After a wrong guess it will tell you how many you guessed right and at the end it will tell you how many tries it took you to get it.
My thoughts on Artificial Intelligence
I believe artificial intelligence technology is an ever-growing part of our lives and will be essential in the future as technology becomes more complex. Currently, it aids us in a wide range of things from manufacturing to security and travel. However, the potential for artificial intelligence technology in the future is limitless. With autonomous cars …
Computer Science Notes 