check your memory….
MEMORY and BYTES
READ ONLY MEMORY referred to as ROM
Read Only Memory (ROM) is used to hold the memory required for basic instructions the computer needs to start up the computer and any other simple instructions it may need.
some facts about ROM
It cannot be written to
It does not lose its data when the power is turned of
RANDOM ACCESS MEMORY referred to as RAM
Random Access Memory (RAM) is the area in the computer that stores the data that can be accessed in any order and actually consists of information that is input into the computer by means of the keyboard and / or mouse.
RAM or computer memory is used as the working area for displaying and working with data, as a comparison, it is like placing files of documentation on your table to work on.
some facts about RAM
Comes in a package referred to as Memory Sticks
They reside in specific slots on the Mother Board
It can be written to and read from
It is very volatile, that is – when the computer is turned off, all data is lost
amount of RAM required
For Windows 95/98 – minimum – 128MB
For Windows XP – minimum performance – 128MB
For Windows XP – optimal performance – 512MB
For computers with high video games – 1-2GB
Complimentary-symmetry/Metal-Oxide Semiconductor (CMOS) is used to hold computer configuration information and to maintain the time and date.
some facts about CMOS
It does require power to retain its memory (power supplied by means of a battery)
WHAT ARE BYTES?
The following applies to both memory (RAM) and storage (Hard Drives)
All memory storage is made up of bits, the smallest amount being 1 BIT.
One BIT is either a 1 or a 0
8 bits = 1 BYTE (bite) (approximately one letter of the alphabet)
1,024 bytes = 1 KILOBYTE (KB) (approximately one page of text)
1,024 kilobytes = 1 MEGABYTE (MB) (approximately 1,000 pages of text)
1,024 megabytes = 1 GIGABYTE (GB) (approximately 1 million pages of text)
Benjamin J Caruana Whittlesea U3A Inc.