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Hardware Basics 0624
| Question | Answer |
|---|---|
| What is a computer system? | The computer and other support devices that work as a team to receive the information as the user inputs it, process that information per the directions that the user defines, and output the information in a usable format. |
| What is the central processing unit (CPU)? | Often referred to as the processor |
| What is the control unit? | It retrieves the instructions and sends command signals to the rest of the computer system to tell them what to do. |
| What is the arithmetic logic unit? | The sector of the CPU that preforms the mathematical calculations that are required in many data processing programs. |
| What is a RAM? | The temporary memory that is designed to hold new data and is available only while the computer is turned on. |
| What is a ROM? | The permanent internal memory inside the system, is inaccessible by the user, and is used to store the instructions thats are installed or programmed at the manufacturer. |
| What is a bit? | Smallest unit of binary information. |
| What are input devices? | Allows the input of data into the computer |
| What is a pixel? | A single colored square on the screen. |
| What are storage devices? | Allows storage of data for later use. |
| What is a hard disk drives? | Holds large amounts of information and is significant in the purchasing decision of a new computer decision. |
| What are CD-ROMs? | (Compact disk-read only memory) are removable and hold about 650 MB of information. You cannot add new information they are readable only. |
| What is a CD-R? | (Compact-disc-recordable) allows the user to record data once for storage purposes; after information is recorded it cannot be edited. |
| What is a CD-RW? | (Compact disc-rewritable), allows the recording of data but also allows the user to edit the information after disc creation. |
| What is application software? | Allows the computer to carry out specific functions, such as word processing, creation of databases and spreadsheets, and so on. |