Printable computer basics worksheet for learning about input/output devices and internal computer parts.

Let’s go step by step to solve this worksheet.

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Section 1 – Input/Output

We need to label each device as either Input, Output, or Both.

Remember:
- Input devices send data *into* the computer (like typing or scanning).
- Output devices get data *from* the computer (like showing pictures or playing sound).
- Some devices can do both — like a touchscreen, but none of these are touchscreens here.

Let’s go one by one:

1. Monitor → Shows what the computer is doing → Output
2. Keyboard → You type on it to give commands → Input
3. Scanner → Takes paper and turns it into digital info → Input
4. Laser Printer → Prints things from the computer onto paper → Output
5. Mouse → You move it to click and control → Input
6. Speakers → Play sounds from the computer → Output
7. Digital Camera → Takes photos and sends them to computer → Input
*(Note: If it were connected and also displayed preview, maybe both — but for basic level, we say Input)*

✔ So Section 1 answers:
1. Output
2. Input
3. Input
4. Output
5. Input
6. Output
7. Input

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Section 2 – What’s Inside a Computer?

We have a word bank:
CPU, BIOS, power supply, hard drive, network card, Motherboard, RAM, USB Port, ROM, video card

Now match each clue:

1. “I connect computers and allow them to talk to each other.”
→ That’s the network card (or NIC). It lets your computer join a network.

2. “I wake up the computer and remind it what to do.”
→ This is BIOS. When you turn on the PC, BIOS starts first and checks hardware before loading OS.

3. “I am the brain of the computer.”
→ Definitely the CPU (Central Processing Unit). Does all the thinking/calculating.

4. “Information is stored on my magnetic cylinders.”
→ Old-school hint! Hard drives use spinning platters with magnetic surfaces → hard drive

5. “I hold all of the other circuit boards.”
→ The big board everything plugs into → Motherboard

6. “I handle the graphics that are displayed on the monitor.”
→ That’s the video card (also called GPU or graphics card)

7. “I am the type of port used by flash drives”
→ Flash drives plug into USB Port

✔ So Section 2 answers:
1. network card
2. BIOS
3. CPU
4. hard drive
5. Motherboard
6. video card
7. USB Port

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Final Answer:

Section 1 – Input/Output
1. Output
2. Input
3. Input
4. Output
5. Input
6. Output
7. Input

Section 2 – What’s Inside a Computer?
1. network card
2. BIOS
3. CPU
4. hard drive
5. Motherboard
6. video card
7. USB Port