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Computer Science Revision, image, I am being held captive in a computer…
Computer Science Revision
CPU- The CPU fetches, decodes, and executes instructions.
There ae several factors that can increase computer performance such as processor or cache size. Cache size works as a faster memory but it it is small and expensive. The processor can have higher Hertz or more cores, which will increase Processing power.
Embedded systems are systems that are designed to do one task, they are hard to update and change but are cheap to produce.
Cloud saving is accessible from anywhere with an internet connection, it is done by sending desired files to an external server connected to the internet.
Computers store data in binary, this is because it is asier for them to read and takes up less storage
Lossy Compression- Lossy is great at lowering file size but it can also permanently delete data.
Lossless Compression- Saves less space then lossy but looks much better.
Compression lowers the file size of an image at the cost of quality.
Linear search- Slow method, works through each entry individually.
Binary Search- Divides the portion of the list in half until the answer is found
A bubble sort compares each individual item in a set of data and sorts them.
A merge sort splits the data set into two
Defensive deign is ensuring a program runs safely irregardless what input user tries.
Unicode is a universal set of characters
Askii is a 7-bit system for displaying English characters
I am being held captive in a computer science lesson please help.
