Autotracing is a technique for producing a vector image from a bitmapped image. Bitmapped images, which are represented by dots, could have possible grains, halftone dots or other limitations. This can be resolved by converting them into vector images. Autotracing focuses on copying or converting a printable image into an outlined object.
A boot sector virus is a computer virus that infects a storage device's master boot record (MBR). It is not mandatory that a boot sector virus successfully boot the victim's PC to infect it. As a result, even non-bootable media can trigger the spread of boot sector viruses. These viruses copy their infected code either to the floppy disk's boot sector or to the hard disk's partition table. During start-up, the virus gets loaded to the computer's memory. As soon as the virus is saved to the memory, it infects the non-infected disks used by the system.
The propagation of boot sector viruses has become very rare since the decline of floppy disks. Also, present-day operating systems include boot-sector safeguards that make it difficult for boot sector viruses to infect them.
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