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As you approach year 12, it is VITAL that you understand the concepts of ICT that you have studied in Units 1, 2 and 3… Can you answer the following Questions?

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Presentation on theme: "As you approach year 12, it is VITAL that you understand the concepts of ICT that you have studied in Units 1, 2 and 3… Can you answer the following Questions?"— Presentation transcript:

1 As you approach year 12, it is VITAL that you understand the concepts of ICT that you have studied in Units 1, 2 and 3… Can you answer the following Questions?

2 Random Access Memory. Volatile / Temporary (data lost when electricity is switched off). Stores programs and data currently being used. Read Only Memory. Non-Volatile / Permanent (data is not lost when electricity is switched off). Stores BIOS – the program that loads the OS from the HD to the RAM.

3 Cache memory is extremely fast memory that is built into a computer’s central processing unit (CPU), or located next to it on a separate chip. The CPU uses memory to store instructions that are repeatedly required to run programs, improving overall system speed. An OS is a set of programs that controls how the hardware of a computer works… It is the means of communication between the user and the computer

4 Controls the Input and Output of the Computer. Stores and Retrieves Files (files being opened and saved) Manages the data being processed. Central Processing Unit Arithmetic and Logic Unit MegaByte

5 Microphone – To Input Sound into the Computer. Scanner – To Input a hardcopy of a graphic into a computer. Mouse – To make a selection or choice from the Operating System or Application Program. Digital Camera – To take clear photos which can be automatically entered into a computer.

6 Dot Matrix – Cheaper to buy and run compared to other printers. Ink Jet Printer – Quieter to print than a dot- matrix. Laser Printer – Prints more pages per minute than the Ink Jet Printer.

7 American Standard Code Information Interchange Visual Display Unit Digital Versatile Disk Characters Per Second Pages Per Minute Dots Per Inch Write Once Read Many

8 MB 4.7 GB 1.44MB 100MB

9 Graphical User Interface Windows Icons Menus Pointers


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