hardware
Give one output device.
a printer, a monitor...
Computer chips contain what?
Millions of transistors.
One or more defects occurring in the computer software that prevents the software from working is called ....
a bug
What does RAM stand for?
it is random access memory.
What is the electrical unit of electrical current?
Ampere is the electrical unit of electrical current. It measures the amount of electrical charge that flows in an electrical circuit per 1 second.
Give at least two input devices.
a keyboard, a mouse, a scanner, a digital camera...
What is the name of the device that stores chemical energy and converts it into electrical energy?
it is a battery.
A computer program that functions as an intermediary between a computer user and the computer hardware is called ......
an Operating system
What is ROM
it is Read Only memory.
What is the unit of measurement for the capacity of a hard drive?
The capacity of a hard drive is usually measured in gigabytes (GB), however hard disk capacity can also be measured in terabytes.
What is the name of the mechanical storage device typically located internally in the tower of the computer?
a hard drive
(or HDD=hard disk drive)
What is the name of the device that converts electrical signals into sound waves, allowing us to hear audio or music?
It is a speaker.
Which application software can be used to create, edit, and print documents?
Word processing
What does CPU mean?
it is Central Processing Unit (commonly referred to as the processor, it is the ‘brain’ of your computer).
1gb is how many bytes?
it is about 1,000,000,000 bytes (one billion)
What is the name of the small compact and portable electronic storage device you plug in a USB port?
it is a flash drive (= a memory stick).
What is the name of the electronic component that stores and releases electrical energy?
it is a Capacitor.
Which application software is used to perform calculations on rows and columns of data?
a spreadsheet
What does GPU Mean?
it is the Graphical Processing Unit.
It is used to read and reproduce graphical representations and effects, which are almost present in every form of media today.
What are processors speed measured in?
in MHz
What are some processors examples?
Pentium Celeron MAC AMD Cyrix
The different components of an integreted circuit are attached to a small piece of .........? (what material?)
The components are attached to a semiconductor material : Silicon
Which utility software is used to protect the computer system from hackers?
it is a firewall.
What does PSU mean?
it is a Power Supply Unit (a component that converts main AC to low-voltage regulated DC power for the internal components of a computer)
What is the electrical unit of resistance?
Ohm is the electrical unit of resistance.