How Computers Work: CPU, Memory & Output

An unopened photo is kept in the _____ of a computer.

CPU's cache Hard drive t RAM BIOS

Which of the following is the fastest memory?

DRAM Hard drive SRAM t CD-ROM

Sensors are ___________ devices.

Input t Output Processing Storage

Which of the following is false about a computer's main memory?

It stores data. It is called RAM, short for random access memory. Any data stored in main memory disappears when the computer loses power. It is the same as long-term memory. t

What is the fundamental memory element in flash memory?

Magnetic disks Optical disks Transistors and capacitors Floating-gate transistors t

Which of the following is not an example of hardware?

Memory chip Windows Operating System t Motherboard Integrated circuit

Which of the following is not an example of software?

Microsoft Excel Angry Birds A web browser A printer t

What is the common feature between DRAM and SRAM?

They are both made of a transistor and a capacitor They are both made of six transistors They both lose their contents when powered off t They both store data by the way of trapping electrons

Which of the following best describes the primary function of the CPU?

To carry out, or process, the instructions in a computer program. t To convert electrical power from alternating to direct current. To serve as the interface between the user and the computer. To store the data used by the computer's software.

Data in ____________ memory is lost when a device loses power unexpectedly.

permanent non-volatile volatile 1 none of the above