Font size
WorksheetsOCR CT IT LO1 Recap
Total questions: 12
Worksheet time: 5mins
What is the binary equivalent of the decimal number 25?
11001
10011
10101
11101
Convert the hexadecimal number “1F” into decimal.
15
31
29
34
Which of the following is the largest unit of storage?
Bit
Kilobyte
Megabyte
Gigabyte
Terabyte
Which connectivity method is most commonly used in a wired LAN?
Wi-Fi
Ethernet
Bluetooth
Infrared
What is the main function of the CPU in a computer system?
Store data permanently
Process instructions
Connect to peripheral devices
Provide temporary memory
A computer is not turning on. What is the first step in troubleshooting?
Replace the motherboard
Check if the power cable is connected
Install a new operating system
Replace the RAM
Which type of computer is best suited for real-time processing in an industrial setting?
Desktop
Mainframe
Embedded system
Laptop
Which of the following is an example of an output device?
Keyboard
Scanner
Monitor
Webcam
Which device is both an input and an output device?
Printer
Touchscreen
Mouse
Projector
What is the primary purpose of RAM in a computer system?
Connect to the internet
Provide temporary storage
Execute instructions
Store data permanently
Which component is responsible for rendering graphics in a computer?
Motherboard
Network card
Graphics card
Sound card
What is the function of a router in a network?
Transmit data between networks
Store data
Display visual output
Provide power to devices
