Technical presentation chris nicholson cisco
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This document provides information about various computer components for both new and experienced computer users. It discusses the CPU, RAM, hard drives, adapter cards, and input/output devices. The CPU is described as the "brain" that controls the computer's actions. RAM allows the computer to perform multiple tasks simultaneously. Hard drives are the primary storage location for files and come in various types like SSD, SATA, and PATA. Adapter cards connect computers to devices like graphics cards, audio cards, and network cards. Common input devices include keyboards, mice, webcams, and microphones, while output devices are printers, monitors, projectors, and speakers.
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The CPU is the brain of the computer and carries out program instructions. Common CPU speeds are 3.1 GHz for desktops and 2.1 GHz for laptops, with faster CPUs producing more heat. Memory in a computer includes RAM for editable data storage, ROM for non-editable data, flash memory for electrical erasing/reprogramming, DRAM and SDRAM for faster data storage in capacitors, and EPROM for retaining data when powered off. A computer also contains adapter cards like PCI and PCIe for external communication, an NIC for network connectivity, an HDD for data storage using ribbon cables, and input/output devices like keyboards, monitors, printers and speakers. Internal cables include SATA, SC
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The system case contains and protects the main computer components. It has expansion bays for drives and ports on the front panel. The power supply converts AC to DC power for components. The motherboard connects all components using buses and contains the CPU, memory, chipset and expansion slots. Storage devices like hard drives and optical drives store programs and data. Ports allow connection of peripherals and expansion cards add capabilities.
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The CPU processes all information in the computer and must be compatible with the motherboard to function properly. The motherboard connects all components and has slots for RAM, expansion cards, and the CPU. RAM and ROM are forms of memory, with RAM allowing for random access of stored data and coming in types like DRAM and DDR. Adapter cards can be inserted into expansion slots on the motherboard to add features, while sound cards produce sound. Hard drives are common storage devices that can be partitioned for backups, and USBs allow removable storage.
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The document discusses the basic components of a computer, including the monitor, keyboard, mouse, case, motherboard, CPU, RAM, hard drive, video card, sound card, speakers, CD-ROM, CD/DVD burner, Ethernet card, and operating system. The monitor displays the visual output, keyboard allows for text input, and mouse controls cursor movement. The case houses components like the motherboard, CPU, RAM, and hard drive. The motherboard connects components and the CPU processes data. RAM temporarily stores data and the hard drive permanently stores data. Additional components like the video card, sound card, and Ethernet card enhance functionality.
Hardware
The physical components of a computer are called hardware and can be divided into four groups: the system unit, input devices, output devices, and storage devices. The system unit contains the main components including the motherboard, processor, hard disks, and optical drives. The motherboard is the primary circuit board that holds the CPU and memory and provides connections for other hardware via expansion slots and ports. Memory (RAM) is used by the processor to temporarily store and access data and applications being used.
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Technical presentation chris nicholson cisco
- 1. COMPUTER COMPONENTS for the computer literate and the new user. By Chris Nicholson DA8
- 2. CPU (NEW USER) the CPU is like the brain of the computer because it controls all of the computers actions and commands, like a human brain would to a body. CPU stands for central processing unit.
- 3. CPU (COMPUTER LITERATE USER) CPU stands for central processing unit and can hav multiple speeds in which it controls the computer, these speeds are: 300Mhz and 550Mhz CPU’s can have different cores, these are: the multi core, dual core and single core.
- 4. RAM (NEW USER) RAM stands for random access memory RAM allows the computer to do multiple things at once, meaning the more RAM the computer has, the more things the computer can do at one time.
- 5. RAM (COMPUTER LITERATE USER) RAM or random access memory comes in different types such as: SDRAM DDR (double data rate SDRAM) Rambus DRAM (RDRAM) DRAM comes in two major for factors which are DIMMs and RIMMs.
- 6. HARD DRIVE (NEW USER) HDD stands for hard disk drive and is the memory on the computer, this is where everything you save is stored and is the largest amount of memory in the computer.
- 7. HARD DRIVES there are a few different types of storage devices: solid state drive SCSI PATA SATA you can have either an internal or an external hard drive.
- 8. HARD DRIVES PATA hard drives are connected by PATA cables and are now stating to be replaced by SATA. SATA hard drives are 7200-RPM and are connected using a thinner, SATA cable. SCSI hard drives are connected with a SCSI cable which can be either 50-pin, 68-pin or 80-pin and can connect to a wider range of devices solid state drives give a faster performance than others and have no moving parts so are more reliable.
- 9. HARD DISK DRIVE (COMPUTER LITERATE) there are different types of hard drive, these include: SATA PATA SSD SCSI hard drive’s are the solid memory of the computer, this is where files can be saved, stored and re- accessed.
- 10. ADAPTER CARDS the different types of adapter cards are: graphics card audio card NIC wireless NIC TV tuner cards
- 11. ADAPTER CARDS PCI adapters connect computers to other devices PCIe do the same as PCI adapters but can connect more updated versions of the devices and can usually connect more devices overall, therefore PCIe adapters should replace PCI. an onboard graphics card is when the graphics card is integrated to the motherboard.
- 12. ADAPTER CARDS the main company that makes PC cards are PCMCIA, these now make more compatible products as they have expanded their standards a few times, allowing them to connect to more devices. the standard PC card PCMCIA develop is a 32-bit card called a cardbus.
- 13. INPUT DEVICES keyboard: allows you to type out letters and words on the computer, can be used to send e-mails. mouse: is used to navigate a pointer around the computer monitor, to select things. webcam: allows you to film or record yourself or things around you using an either internal or external webcam, can be used to video call. microphone: allows you to record yourself talking or singing etc, can be used for speech making/ phone calls
- 14. OUTPUT DEVICES printer: can be used to print out images or letters etc. in colour or black and white. monitor: used to view what you are doing on the computer. (screen.) projector: can be used to project images or what you are viewing on the monitor in a larger form or to an audience. speakers: are used to listen to recordings or sounds from your computer.
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