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Data Storage & binary numbers. Lecture 2 Computer Science TXPrep Year 4. Data. All data and instructions are stored in the computer’s memory in binary form. The smallest piece of a computer’s memory is called a BIT. - PowerPoint PPT Presentation
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DATA STORAGE & BINARY NUMBERS
Lecture 2
Computer Science
TXPrep Year 4
DATA
All data and instructions are stored in the computer’s memory in binary form.
The smallest piece of a computer’s memory is called a BIT.
A byte is a group of nits interpreted together. A byte is made up of 8 bits.
BIT, BYTES…..NIBBLES?
Bit: a 1 or a 0
Nibble: 4 bits (used to convert from base 2 to bade 16)
Byte: 8 bits
1K- 1 Kilobyte
1M-1 Megabyte
1G-1 Gigabyte
BAUD-Bits per second
BINARY NUMBERS
We generally evaluate binary numbers in base 2.
Subscript denotes the base.
128 64 32 16 8 4 2 1 are the values
BINARY NUMBERS BY DIVISION
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