What is the definition of internal parts of the system unit?

Answer 1

Motherboard - The motherboard is the main circuit board of a microcomputer. It is also known as the mainboard or system board. CPU - The CPU is the central electronic chip that determines the processing power of the computer. Memory - Memory is the part of the computer that temporarily stores applications, documents, and stem operating information. Bus- A bus is an electronic line that allows 1s and 0s to move from one place to another. Expansion Slots - Expansions slots appear on the motherboard. They are sockets into which adapters are connected. Ports and Connectors - A port is a connector located on the motherboard or on a separate adapter. Bays - A bay is a space inside the computer case where a hard drive, floppy drive or CD-ROM drive sits Power Supply - A power supply changes normal household electricity into electricity that a computer can use. Sound Components - A sound card lets a computer play and record high quality sound.

Central Processing Unit (CPU)

# Does all of the mathematics, mainly addition # Does all the logical comparisons of values # Directs the flow of data in a computer # Controls the operation of the parts of the computer

# A microprocessor is a complete computer on a silicon chip #* stores data and instructions waiting to be used #* follows changeable instructions #* does input, processing, and output

# A microprocessor does all of the functions of a computer # The Arithmetic Logic Unit (ALU) # #* does all of the mathematics in a computer #* does all of the logic comparisons of values #* some common logic comparison symbols #* #** = equal to #** < less than #** > greater than #** <= less than or equal to #** >= greater than or equal to #** <> not equal

#* directs the flow of information into the CPU and/or memory or storage #* controls which instructions the CPU will do next

# The Control Unit #* Used to store data and instructions inside the processor #* Size of the registers can affect the speed and performance of the processor

# Registers # The speed of CPUs is measured in hertzs. # #* A hertz is on cycle per second. #* Need to measure time to determine cycles per second #* #** All computers have a clock built into them for timing the cycles #** The clock is usually located in a small metal box on the motherboard. #* Today, many CPUs can complete over six (6) instructions per second.

#* Most computers have a CPU that can do more than 400 MHz. #* #** MHz stands for megahertzs #** A MHz is 1,000,000 cycles per second. #* Computers will soon be at speeds of over a gigahertz, 1,000,000,000 Hertzs.

# Speeds of modern CPUs

Memory # Consists of silicon chips, usually either VLS or VLSI technology is used to create the chips #* Read Only Memory (ROM) #* Random Access Memory (RAM) # Two forms of Primary Memory # Primary memory is also called primary storage

# Stores instructions that are used by the CPU # #* Tells the CPU how to be the kind of computer it is, for example a Windows, Macintosh, or Play Station computers. #* Tells the CPU how to work with the different parts of the computer #* ROM can also hold programs that are directly accessed by the CPU. One such program is the self-test when the computer is first turned on. The self-test tests to seem if all the parts on the main circuit board (mother board) are working correctly. #* The instructions are built into the electronic circuits of the chips #* These instructions in ROM are called firmware #* To change the instructions in ROM you need to usually change the chips or do some other special process that is normally not available to an average user. # The instructions in ROM can not usually be changed # The instructions in ROM are nonvolatile. They stay in ROM even when the computer is turned off. #* Random access means that any piece of information in ROM can be accessed at any given time without access other information first. It is a lot like the tracks on a music CD. You can access any track at any time and in any order. #* The other kind of access is sequential access. You must access the information in the order that they are located. This is a lot like a music tape. You must play the songs in order, or you have to fast forward past songs to get to the one you want. # Access to information is random access.

# Store data and instructions that are used by the CPU to perform some task. # #* These instructions are usually loaded into RAM from a secondary storage device. #* RAM is also used to store instructions that tell the CPU how to work with its parts. These instructions are usually called drivers. # The instructions in RAM are constantly changing, depending on the needs of the CPU. #* When the computer is turned off the information in RAM disappears. #* The information in RAM needs to be saved to secondary storage before the computer is turned off. # The instructions in RAM are volatile. # Access to information is random access.

♥♥♥:::By: Kim Andales :::♥♥♥

Answer 2

• processor: carries out processes/instructions
• motherboard: connects the components of the computer
• BIOS: basic input/output system: gets the computer started visually when turned on, controls data flow
• power supply: converts voltage, maintains the power going in and out of the computer
• fan and cooling: cools down the computer because the parts have operating temperature limits
• hard drives: storage divice
• ports: enable plugging in of other divices (keyboard, mouse, speakers)
• internal memory: data storage (RAM, ROM, disk)
• internal cards: graphic cards and network cards have many features, such as allowing for multiple monitors

Answer 3

Processor, mother board, battery, RAM, power supply, CD ROM, hard disk, graphics card, sound card, can card

Answer 4

mother board