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Lesson03
- 1. FILE MANAGEMENT Introduction To IT Systems PC PASSPORT Matt Harkin harkinm@dumgal.ac.uk
- 2. PC personal computer most home users operate a PC can have multiple users used by one person at a time Matt Harkin harkinm@dumgal.ac.uk
- 3. server computer that controls network activity most businesses have at least one physically used by network administrators used by many people at a time via the network connection Matt Harkin harkinm@dumgal.ac.uk
- 4. embedde computing power to home d device entertainment smart TV is an obvious example may not look like a computer computer system within other devices Matt Harkin harkinm@dumgal.ac.uk
- 5. desktop classic computer system most home users operate a PC has a separate monitor, keyboard, mouse comes with a base unit | system case Matt Harkin harkinm@dumgal.ac.uk
- 6. laptop portable computing power touchpad used instead of mouse monitor folds into the casing most components are in a small casing Matt Harkin harkinm@dumgal.ac.uk
- 7. pda portable computing power wi-fi, 3g, gprs touchscreen or pen hand held device (palmtop computer) Matt Harkin harkinm@dumgal.ac.uk
- 8. smartphon friendly devices with powerful e apps keyboards and/or touchscreens +camera, music player, apps very popular and similar to pda Matt Harkin harkinm@dumgal.ac.uk
- 9. console portable and home gaming lots of different types can be static and home based can be small and portable Matt Harkin harkinm@dumgal.ac.uk
- 10. sizes bit, byte, word, KB, MB, GB, TB 1 and 0 are combined in different ways – this is the language of a computer high voltage represents a 1, low voltage represents a 0 computers use electrical voltages Matt Harkin harkinm@dumgal.ac.uk
- 11. sizes bit, byte, word, KB, MB, GB, TB Computer Language is called binary BIT BYTE WORD 1 or 0 8 bits 8 bytes Examples BIT BYTE WORD Bits Bytes Words 4 Matt Harkin harkinm@dumgal.ac.uk
- 12. sizes bit, byte, word, KB, MB, GB, TB Computer Language is called binary KILOBYTE KB MEGABYTE MB GIGABYTE GB 1024 bytes 1024 kilobytes 1024 megabytes Examples KILOBYTE MEGABYTE GIGABYTE Kilobytes Megabytes Gigabyte 7 Matt Harkin harkinm@dumgal.ac.uk
- 13. sizes put it into perspective Matt Harkin harkinm@dumgal.ac.uk
- 14. sizes put it into perspective WINDOWS 7 WINDOWS XP APPLE MAC OSX Matt Harkin harkinm@dumgal.ac.uk