Identify the main parts of a personal computer system.

To identify the main parts of a personal computer system shown in the diagram, we look at each item and match it to its common name and function.

1. 46C-PRINTER → This is clearly labeled as a Printer. It’s an output device that prints documents on paper.

2. Large rectangular screen with stand → This is a Monitor. It displays visual output from the computer.

3. RAM (labeled) → RAM stands for Random Access Memory. It’s a type of memory chip used for temporary storage while the computer is running. The image shows two chips labeled “RAM” — both are correct, but typically we just say “RAM” as one component category.

4. ROM (labeled) → ROM stands for Read-Only Memory. It’s another type of memory chip that stores permanent instructions (like BIOS). Again, it’s shown as a chip — so we label it “ROM”.

5. Stack of circular disks → These are Hard Disk Drives (HDDs) or simply Hard Disks. They store data permanently even when the computer is off. Sometimes called “storage drives.”

6. Keyboard with keys and number pad → This is a Keyboard. It’s an input device used to type letters, numbers, and commands.

Note: There’s also a larger unlabeled chip between RAM and ROM — this is likely meant to represent the CPU (Central Processing Unit) or motherboard, but since it’s not labeled and the task says “identify the main parts,” and all other items are either labeled or obvious, we stick to what’s visually clear.

However, looking again — the large chip without label might be intended as the Motherboard or CPU, but since the worksheet doesn’t label it, and the instruction is to “identify the main parts,” we should only name what can be confidently identified from labels or standard appearance.

But wait — let’s check: In many basic computer diagrams like this, the big chip in the middle is often the CPU or processor. However, since it’s not labeled, and the question says “identify,” perhaps we’re expected to recognize it by shape? Actually, no — the safest approach is to list only those that are either labeled or universally recognizable.

Looking at standard educational materials for grade 6 technology:

Common main parts taught:
- Monitor
- Keyboard
- Printer
- CPU (sometimes shown as a box or chip)
- RAM
- ROM
- Hard Drive

In this image:
- Printer → labeled
- Monitor → obvious
- Keyboard → obvious
- RAM → labeled
- ROM → labeled
- Hard Drive → stack of disks = hard drive
- The big chip in center → likely meant to be CPU or Motherboard

But note: The big chip has many pins — that’s typical of a CPU socket or actual CPU module. In older diagrams, this represents the CPU.

Also, sometimes the big chip is the Motherboard, but motherboards usually have more components drawn on them. Here, it’s a single chip-like object — so probably CPU.

Let me double-check: In MatchCard Science Level 6, they teach:

Main parts:
- Input devices (keyboard, mouse)
- Output devices (monitor, printer)
- Storage (hard drive, floppy disk — here it’s hard drive)
- Memory (RAM, ROM)
- Processor (CPU)

So yes — the unlabeled big chip is almost certainly the CPU.

Therefore, the full list of identifiable parts:

1. Printer
2. Monitor
3. RAM
4. ROM
5. Hard Drive (or Hard Disk)
6. Keyboard
7. CPU (the large central chip)

Wait — but the image shows *two* RAM chips and *one* ROM chip — do we count them separately? No — we group them under their categories. So “RAM” is one part, “ROM” is another.

Similarly, the hard drive is one unit (even though it’s drawn as stacked platters).

The keyboard is one.

The monitor is one.

The printer is one.

And the big chip — if it’s the CPU, then that’s seven parts.

But let’s see how many distinct objects are drawn:

- Printer (1)
- Monitor (2)
- RAM chip A (3)
- RAM chip B (4) ← but same category
- ROM chip (5)
- Big chip (6)
- Hard drive (7)
- Keyboard (8)

That’s 8 drawings, but some are same type.

Standard answer for such worksheets usually lists:

- Monitor
- Keyboard
- Printer
- CPU
- RAM
- ROM
- Hard Drive

Yes — that’s 7 main parts.

Sometimes they include “motherboard” instead of CPU, but given the pin configuration, CPU is more accurate.

Another way: Look at the labels provided in the image itself — only “46C-PRINTER”, “RAM”, and “ROM” are labeled. The rest must be identified by appearance.

So final identification:

→ Top left: Printer
→ Top right: Monitor
→ Middle left: RAM (two chips, but one category)
→ Below RAM: ROM
→ Center: CPU (large chip with many pins)
→ Bottom left: Hard Drive (stacked disks)
→ Bottom right: Keyboard

Thus, the main parts are:

1. Printer
2. Monitor
3. RAM
4. ROM
5. CPU
6. Hard Drive
7. Keyboard

This matches standard curriculum for Technology - 6.

Final Answer:
Printer, Monitor, RAM, ROM, CPU, Hard Drive, Keyboard