webcams (small digitalvideo cameras used on the Web).
Inputdevices include: keyboards, scanners, barcode readers, digitalcameras, microphonesand video cameras e.g. These can include input devices,output devices, storage devices and communications devices. The other parts connected tothe CPU are known as peripherals.The combination of the processor and memory is sometimes referredto as the CPU (central processing unit), although sometimes theprocessor itself is referred to as the CPU.Thereare two main types of memory: a)RAM (random access memory) holds the program instructions andthe data that is being used by the processor, b)ROM (read only memory) holds the program instructions andsettings required to start up the computer.Powerfulcomputers used as servers often have more than one processor. It processes the data and controls the computer. Pentium also is the most important part of thecomputer. While we each are entitled to our opinion, I provide my reasoning of why the power supply unit is more important. I do disagree with him on that point (it’s great that he allows people to disagree with him in the comments on his blog). I recently read a post on Info Carnivor titled Computer Terms Glossary: Advice for Computer Shoppers where the author mentions that the processor is most important part of a computer.I outline my reasons for thinking this way in this post. To me, it is the most important component, and is one that you shouldn’t go cheap on purchasing. Most people, probably wouldn’t say that the power supply unit (PSU) is the most important component.Depending on what they use their computer for, everyone would have a different idea of what is the most important component. If they had to stop and think about it, some would say the processor (CPU), memory, the video card, or even the hard drive. Not many people would stop and think about the most important component that is currently in their computer. What is the most important component in a computer?.- RAM - Random Access MemoryRam is the core memory you buy for any machine.- ROM - Read Only MemoryROM is memory that is "hard coded" from the - manufacturer and never changes, such as the instruction to "boot" up your computer.- fast disk: 10 milliseconds (10,000,000 nanoseconds).
- BUS - "trucks" data around the computer.- Power Supply - the "stomach" of the computer.- Motherboard - The spine of the computer.Each sub-system is a piece of computer hardware (or part of a piece of computer hardware.) How these pieces interact is called the "Computer Architecture". All of these components must communicate with each other and provide a necessary service to the user.Ī computer is a complex device containing many sub-systems. These include: the CPU, memory, busses, clocks, peripherals (printers, keyboards, etc), etc. Its principal components or subsystems, each of which could be said to have an architecture of its own, are input/output, storage, communication, control, and processing.Ĭomputers are built of various components (called Hardware). The architecture of a computer is chosen with regard to the types of programs that will be run on it (business, scientific, general-purpose, etc.). Internal structure of a digital computer, encompassing the design and layout of its instruction set and storage registers.