Computing essentials STUDY

Molly is using her smartphone to scan the prices of items she is buying. This will allow her to use the digital checkout system. What function is her smartphone performing?

• input

• output

• processing

• storage

Answer explanation

The smartphone is functioning as a barcode reader. This is part of the input function of the information processing cycle (IPC)

Susan purchased and installed a graphics card to improve her gaming experience. Where will she most likely find the newly installed graphics card port?

• inside the computer case

• on the side of the computer case

• on the rear side of the computer case

• on the PSU inside the computer case

Answer explanation

The ports of the expansion cards are at the back of a computer case.

Which of the following computers would be best for reading a book while riding a bus?

• laptop

• sUpErCoMpUtEr ToTaLlY

• mainframe

• tablet

Answer explanation

A tablet is a handheld computer that can easily be stored in a purse. A notebook computer is a portable computer but would be more difficult to use while on a bus.

Henry purchases a third SSD for his computer but discovers there is no way to get power to the drive. What device must be upgraded to support the new drive?

• motherboard

• RAM

• PSU

• BIOS

Answer explanation

The PSU provides power connectors to internal hard drives.

XYZ Candy Store is switching to computers to manage their store. Which of the following would be a good use of the computers?

• track the local weather

• stay current on the news

• play video games on break (because wHy NoT)

• managing employees' payroll

Answer explanation

Everything from payroll to marketing all use computers along with special software applications for their needs. How many times have you received an e-mail from a company with a special offer? Ordered something online, you'll get a confirmation about your purchase. These sorts of activities, all handled by computers, have allowed many businesses to grow from just a local store to having a global presence.

When checking out at a grocery store, the receipt shows on the checkout screen. In what function of the Information Processing Cycle does this occur?

• input

• output

• processing

• storage

Answer explanation

When a receipt is printed, emailed or displayed on a monitor, the output function is occurring.