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Cambridge O Level Chemistry (5070)

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Cambridge O Level Chemistry (5070)

Past Papers (Nov 2020): 1. Paper 1 (11) Paper 1 (12) 2. Paper 2 (21) Paper 2 (22) 3. Paper 3 (31) Paper 3 (32) 4. Paper 4 (41) Paper 4 (42) © UCLES

Software

Software is categorized into system software and application software. System software is further categorized into operating systems and utility software System Sofware: System software provides the services that the computer requires. This software enables the computer or device to work or helps maintain the good working order of the computer. 1. Operating System s: An operating system is responsible for important functions such as how a file is written to a hard drive or how a program is loaded into RAM 2. Utility Software: It helps in configuring and maintaining the computer device . Some examples of utility software include Compression tools (Winrar) , Backup Software (Software that backups data, which could be in the cloud), Disk clean-up, Disk de-fragmentation and Antiviruses) Disk Defragmenter: When files are saved t o a magnetic hard disk they are sorted in the next available space, this can lead to files being split into fragments which take longer to a...

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