Part 1
What is data compression?
Data compression is where a file is made smaller by shortening code where it is similar. This is helpful when transmitting files over the net, or in general just saving space of a SSD or Normal Hard drive.
Data compression comes in two forms:
Lossless Compression: Lossless compression is where similar parts of a file, are compressed by their similarities, however, the frequency is recorded and can be uncompressed without losing any extra data. This is usually used for games found on a DVD, where you will run an .exe to extract all files that are compressed. Same for downloading the files online as it is more efficient than other methods.
Lossy Compression: usually used in pictures, videos and sounds effects, by removing what the eye or ear can hear/see. This removes any unnecessary …show more content…
This can be done by setting a password on your computer, adding timeouts for when not in use for a period of time, and turning it off in general when not in use. These simple precautions stop local attacks, such as USB rubber ducky attacks. Many physical components can be taken by simply having access to the parts. And able to reset basic password by removing the CMOS battery from the BIOS, resetting the BIOS entirely, removing the password as well. A computer can also have physical damage when not supervised. This means that keeping your computer safe physically, is to keep it supervised, or kept away from others. However, with software protection, it is easy to pick up viruses, Trojans, rats etc. this can be fixed by using common knowledge on websites as well as having Anti-Malware software, as well as software and protection from UAC (User Access Certificate) Other problems that are you will get unwanted software by rushing through installation of other software’s. This can simply be avoided by looking at what you are clicking “accept” button, as they may not be just terms and
What is data compression?
Data compression is where a file is made smaller by shortening code where it is similar. This is helpful when transmitting files over the net, or in general just saving space of a SSD or Normal Hard drive.
Data compression comes in two forms:
Lossless Compression: Lossless compression is where similar parts of a file, are compressed by their similarities, however, the frequency is recorded and can be uncompressed without losing any extra data. This is usually used for games found on a DVD, where you will run an .exe to extract all files that are compressed. Same for downloading the files online as it is more efficient than other methods.
Lossy Compression: usually used in pictures, videos and sounds effects, by removing what the eye or ear can hear/see. This removes any unnecessary …show more content…
This can be done by setting a password on your computer, adding timeouts for when not in use for a period of time, and turning it off in general when not in use. These simple precautions stop local attacks, such as USB rubber ducky attacks. Many physical components can be taken by simply having access to the parts. And able to reset basic password by removing the CMOS battery from the BIOS, resetting the BIOS entirely, removing the password as well. A computer can also have physical damage when not supervised. This means that keeping your computer safe physically, is to keep it supervised, or kept away from others. However, with software protection, it is easy to pick up viruses, Trojans, rats etc. this can be fixed by using common knowledge on websites as well as having Anti-Malware software, as well as software and protection from UAC (User Access Certificate) Other problems that are you will get unwanted software by rushing through installation of other software’s. This can simply be avoided by looking at what you are clicking “accept” button, as they may not be just terms and