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Paper 1, Protocols, Defragmentation Software, image, punch, image (10),…
Paper 1
Types
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UDP
User Datagram Protocol - similar to TCP, messages are sent instead of packets so it is faster . allowing for gaming or video calls over the internet.
HTTP/HTTPS
Hypertext Transfer Protocol - allows communication between a webserver and a client. HTTPS is a more secure version of this as it includes secure encryption.
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Defragmention
A file is stored on a hard disk however it is not stored as a whole file, but as a series of segments. Sometimes the segments run together in sequence and sometimes the segments are split up over a disk.
Defragmentation software takes the fragmented files and rearranges the segments so that they run contiguously. This decreases read/write time, thereby speeding up computer performance.
ASCII
Meaning
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ascii
In ASCII, each character has its own assigned number
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