Helen M. Plum Memorial Library Computer Classes for Beginners Basic Mouse Skills. Bits and Bytes. 01000001=A 01000010=B 01000011=C. 8 bits=1 byte. 1=ON 0=OFF. K(Kilo)=1024 bytes. The word PLUM is 4 bytes long. MB(Mega)=1,048,576 bytes. GB(Giga)=1,073,741,824 bytes. A floppy is 1.44MB.
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01000001=A 01000010=B 01000011=C
8 bits=1 byte
The word PLUM is 4 bytes long.
A floppy is 1.44MB
A CD-ROM is 650MB
A DVD is 2.6GB
A byte is a single character!
Central Processing Unit
“The brains of the computer.”
The monitor is the main display device for the CPU. It displays the VGA signals that it receives.
The Internet is a world wide network of computers connected in various ways:
When you start or restart a computer you are booting the CPU.
Cold Boot – Powering the CPU on.
Warm Boot – Restarting the computer by the reset button, “Ctrl-Alt-Del,” or “Shutdown – Restart.”
It is vital to the safety of the computer that the system be shutdown properly. Please remember not to just push the power switch when finished using the computer.
DO A “START – SHUTDOWN.”
Let’s begin by booting the CPU…