Task scheduling - Creates and manages common tasks that the computer should do at specific times (tasks: virus scans, backups, defragmentation), Task scheduling uses - time slices, Task scheduling is implemented using a - round robin method, Data can be destroyed or corrupted by a - virus that can infect a computer system, Anti-virus software is used to - detect, locate and remove a virus, A virus is a program that - can attach itself to a file and then spread to other files, A virus can intentionally damage - a computer system and prevent it from booting up or slow down the performance, Anti-virus software needs - to be installed on a computer, Anti-virus software can - scan files and data stored on a computer and compare these to a known database of viruses, Storage devices can also be scanned by - anti-virus software e.g. internal hard drive and all external storage devices such as USB memory pens,

Software 2 (CCEA GCSE Digital Technology)

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