DO IT NOW The LMC has the following instruction set: Mnemonic MachineCode Load LDA 5xx Store STA 3xx Add ADD 1xx Subtract SUB 2xx Input INP 901 Output OUT 902 End HLT 000 Branch if zero BRZ 7xx Branch if zero or positive BRP 8xx Branch always BRA 6xx Data storage DAT What does the machine code 901 do? What does 3XX do? If 501 tells the computer to load the data at mail box 1, what is the correct terminology for the following parts of the instruction: 5XX – X01 - Waits for input from the user Stores data in accumulator in a specified mail box number 5XX – op code X01 – operand

Identify computer hardware, their purpose and upgrade possibilities Learning AIM Identify computer hardware, their purpose and upgrade possibilities

Learning objectives Describe common storage technologies such as optical, magnetic and solid state Describe the difference between RAM and ROM Understand the need for input and output devices State the purpose of the CPU

Learning outcomes By the end of this lesson you will be able to .... ALL (C) Identify RAM, ROM, CPU, secondary storage and where input / output devices connect to the mother board. Describe how data is moved around the system MOST (B) Also be able to describe the purpose of each hardware component SOME (A) Also be able to describe in detail the purpose of each hardware component, giving details about how each could be upgraded

Describe common storage technologies such as optical, magnetic and solid state Describe the difference between RAM and ROM Understand the need for input and output devices State the purpose of the CPU Learning objectives Independent Task Working in groups take apart the computer. Take it in turns! In your books copy and complete: Name of component If storage what type? Location Purpose Upgradable? Connects to? RAM Primary On mother board Stores data, OS, programs that are currently running / in use Yes – you can install a larger capacity RAM increasing multi-tasking capabilities CPU via a bus Hand out instruction sheets – double check students know to wear gloves – discuss static build up and that some people like to take shoes and socks off to avoid this. Discuss what to check for (computer turned off, left off for an hour before opening etc)

Fill in the keywords based on what the class think they should be

Learning outcomes I can .... ALL MOST SOME Identify RAM, ROM, CPU, secondary storage and where input / output devices connect to the mother board. Describe how data is moved around the system MOST (B) Also be able to describe the purpose of each hardware component SOME (A) Also be able to describe in detail the purpose of each hardware component, giving details about how each could be upgraded