Unit 3: Hardware

3.1 Computers and their components

1 Show understanding of the need for input, output, primary memory and secondary (including removable) storage

2 Show understanding of embedded systems

3 Describe the principal operations of hardware devices

4 Show understanding of the use of buffers

5 Explain the differences between Random Access Memory (RAM) and Read Only Memory (ROM)

6 Explain the differences between Static RAM (SRAM) and Dynamic RAM (DRAM)

7 Explain the difference between Programmable ROM (PROM), Erasable Programmable ROM (EPROM) and Electrically Erasable Programmable ROM (EEPROM)

8 Show an understanding of monitoring and control systems

3.2 Logic Gates and Logic Circuits

1 Use the following logic gate symbols:
-NOT, AND, OR, NAND, NOR and XOR

2 Understand and define the functions of :
-NOT, AND, OR, NAND, NOR and XOR (EOR) gates

3 Construct the truth table for each of the logic gates above

4 Construct a logic circuit

5 Construct a truth table

6 Construct a logic expression