1. Memory Parts of a computer
How do computers work?
Memory
Parts of a computer

2. Parts of a computer The computer is made of
Programs or instructions that tell the machine how to work = SOFTWARE
e.g. Operating system, Word…
Physical parts of the computer= HARDWARE
e.g. monitor…
&
All the parts work together to make the machine work

3. Memory - Binary System
Computers can only remember and read zeros and ones.
Each character, number, symbol that you see on the computer screen is recorded by the computer as a combination of zeroes and ones.
E.g = letter a

4. Memory units
A combination of 8 zeroes and ones that represent a number o letter is called a bit. This is the smallest unit of memory
Some units of memory
1024 bits
1 Byte (B)
1024 Bytes (B)
1 Kilobyte (KB)
1024 KB
1 Megabyte (MB)
1024 MB
1 Gigabyte (GB)
1024 GB
1 Terabyte (TB)
1024 TB
1 Petabyte (PB)

5. End of unit project Title: What are computers? Definition
Computers that are part of our lives
How does a computer work
Binary system and storage (memory) units
Parts of a computer
What computers do for us
Computers that do not look like computers