Grade 6, unit 1 revision

How computer system works?

• Input-

  process- output

• process-

  output - input

• Input - output- process

• Output-process- input

Hardware are

• physical components of a computer or anything that you can touch.

• The programs of a computer system.

• writen instructions a computer has to follow

• Finding the cause of an issue showing on a computer system.

A storage device is

• a piece of computer equipment on which information can be stored.

• Monitor- printer- spreaker

• Keyboard- mouse - scanner

• Programs and applications

The methods used to solve computer problems.

• Troubleshooting

• Computer Problems

• Central a Processing Unit

• IPO CYCLE

A warning sign.

• ERROR When there is an issue with a computer system,

• User inputs.

• User outs.

• Processing a task.

Flickering screen on monitor or projector.

• could be some loose or faulty cables attached between the monitor and computer Or incorrect refresh rate.

• No power supplies the device.

• PC is on sleep mode.

• Need to be charged.

Papers getting jammed in printer.

• could be due to incorrect loading of paper or printer’s rollers.

• the printer driver is not known by an old operating system.

• Printer is out of paper.

• Printer ports and USP problems.

Speakers stop working

• computer is muted or computer that is connected to the speakers is using the wrong device for speaker output.

• because of typing mistake.

• Input problems.

• Motherboard problems

Files and folders becoming invisible or corrupt

• a mechanical failure inside the moving parts of a hard drive. Or damage caused due to a fall. Or due to age of computer system.

• Hide file option.

• Input problems

• Output problems

System begins to lag and suddenly freezes.

• A virus or malware attack on a HDD or SD card

• File wasn’t saved in the proper folder.

• Because of lack of power

• Poor internet connection