Computer ConceptsMemory

By: Larry So Chun YinSeptember 25th

Unit Amount in Bits Unit Amount in BytesKilobit (Kbit) 1000 Kilobyte (KB) 1000

Megabit (Mbit) 1000,000 Megabyte (MB) 1000,000

Gigabit (Gbit) 1000,000,000 Gigabyte (GB) 1000,000,000

Terabit (Tbit) 1000,000,000,000 Terabyte (TB) 1000,000,000,000

Bits and Bytes

Unit Amount in Bits Unit Amount in Bytes

Kibibit (Kib) 1024 Kibibyte (KiB) 1024

Mebibit (Mib) 1048,576 Mebibyte (MiB) 1048,576

Gibibit (Gib) 1073,741,824 Gibibyte (GiB) 1073,741,824

Tebibit (Tib) 1099,511,627,776 Tebibyte (TiB) 1099,511,627,776

1 byte = 8 bits

Binary and DecimalThe binary system is a base 2 numeral

system using only the digits “1” and “0”We are currently using a “base 10” system

– the “Decimal” systemOur current system has 10 digits:

“0,1,2,3,…,9”

RAMRAM = Random Access MemoryThere are millions of capacitorsCapacitors are leaking buckets2GB is usually sufficientSome systems only support a max. of 3GB

Virtual MemoryVirtual Memory = R.A.M.+ Hard DiskIdle/Inactive parts are put in the HDD for

later access

Capacity of Devices

Thanks for listening!

For more information, please visit this webpage:

http://y10unit1.wikispaces.com/