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Basic Computer Components Unit 2. What is a computer?  A computer is an electronic device that accepts raw data and processes it into information that.

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Presentation on theme: "Basic Computer Components Unit 2. What is a computer?  A computer is an electronic device that accepts raw data and processes it into information that."— Presentation transcript:

1 Basic Computer Components Unit 2

2 What is a computer?  A computer is an electronic device that accepts raw data and processes it into information that is useful.

3 Parts of a Desktop Computer

4 Parts of a Laptop Computer Monitor Keyboard Speakers Touchpad

5 Information Processing Cycle  The Cycle has four main functions: Input Processing Output Storage

6 Input  Devices used to enter data into the computer  Examples of Input devices Keyboard Mouse Scanner Joystick Microphone

7 Processing  A hardware device that processes data into useful form.  Also called CPU (Central Processing Unit) – This is the “brain” of the computer.

8 Output  A hardware device that lets the user see the data being input.  Examples of output devices Monitor Printer Speakers Headphones

9 Storage  A hardware device that stores large amounts of information.  Examples of storage devices. Hard Drive Flash Drive CD-ROMDisk

10 Combined Input & Output Devices  There are devices that are both input & output.  Examples Smartphones Tablets

11 Memory  Memory is where data and instructions are stored.  Two types of Memory RAM – (Random Access Memory) memory that is lost when the power is off. ROM – (Read-only memory) memory that is Not lost when power is off.

12 Bytes  A unit of measurement of memory  Four types of bytes Kilobyte – (KB) 1 thousand bytes Megabyte – (MB) 1 million bytes Gigabyte – (GB) 1 billion bytes Terabyte – (TB) 1 trillion bytes

13 Data  Numbers, words, symbols, or alphabetic characters that are put into the computer.

14 Hardware  Computer equipment that can be seen or touched.  Examples Keyboard Monitor printer

15 Software  Programs or instructions that tell the computer what to do.  Examples Microsoft PowerPoint MicroType Pro Video games


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