Monday, November 24, 2008

CEdu 581 - Week 4

Conceptual Framework

2 comments:

Kay Stickland said...

Describe what actions a computer takes from power-on to Log-in screen.

When the power button of a computer is pushed it needs time to process all of the information needed to get the computer ready for use. An electrical current travels to the microprocessor to reset the computer memory and give the computer power. While the reset is taking place, the microprocessor sends a message to the ROM chips to get the BIOS (basic input/output system) running. This BIOS program connects the hard drive, loads the system files and software allowing communication between the operating system and hardware. Then the microprocessor checks all of the hardware. Next the hard drive in contacted and loading beings (graphics, files, fonts, etc.). Lastly, the video card is contacted to create the desktop and files are accessed that are placed in folders and loaded through the microprocessor into RAM. Once this is complete, the computer is ready to use.

Reference:
http://www.crm.mb.ca/guide/using/startup.html


What are the essential "big picture" hardware pieces a computer
must have to be a computer. Explain why each piece is essential.

Case: This is what holds all of the components of a computer.

Power Supply: The electrical supple to make the computer work and run.

Motherboard: The mail circuit board for a computer. Contains all of the connectors for connecting additional board for CPU, RAM, BIOS, memory, storage, and peripheral devices.

Random Access Memory (RAM): A temporary storage space for memory.

Central Processing Unit (CPU): The “brain” of the computer. Processes all the information and data on the computer.

Heat Sink: A fan that is used to lower the temperature of an electronic device. Usually located above the CPU.

Hard Drive: Stores all of the long-term data and memory on the computer.

CD/DVD ROM drives: Allows for input and output of information for a computer.

~Kirstin said...

Nice job synthesizing the info from your reference site. Clear and concise.

Just need to add input/output devices for essential pieces.