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Friday,May20,
Thursday,May19,
Hard Drive
The hard drive stores all of the computer's information and retains the information when the computer is turned off. A fast hard drive is needed to supply the CPU with data as fast as it needs it. Hard drive sizes are typically measured in GigaBytes. The larger the number, the more applications and games you can have installed. When buying a hard drive you need to consider the...
Thursday,May19,
What's Cache?
Cache memory is extremely fast memory that is built into a computer’s (CPU), or located next to it on a separate chip. The CPU uses cache memory to store instructions that are repeatedly required to run programs, improving overall system speed. The advantage of cache memory is that the CPU does not have to use the motherboard’s system bus for data transfer....
Thursday,May19,
ROM
Read-only memory (ROM) is a type of memory that cannot be written to. Information is written to ROM chips by the manufacturer, and this information cannot be changed. In the past, if ROM information needed to be updated, you had to remove the original chip and replace it with an updated ROM chip. Software written to ROM chips is called firmware. Types of ROM: Read Only Memory, Programmable Read Only Memory, Erasable Programmable Read Only Memory, Electrically Erasable Programmable Read Only Memory, and Flash Electrically Erasable Programmable Read Only Memory....
Thursday,May19,
Random access memory or (RAM)
Refers to computer chips that temporarily store data to enhance computer performance. When a computer shuts down properly, all data located in random access memory is committed to permanent storage on the hard drive or flash drive. At the next boot-up, RAM begins to fill with programs automatically loaded at startup, and with files opened by the user. Types of RAM: Dynamic, Complimentary Semi-Oxide Conductor, Shadow, Video, and Windo...
Thursday,May19,
Central Processing Units (CPU)
The central processing unit (CPU) is the portion of a computer system that carries out the instructions of a computer program, and is the primary element carrying out the computer's functions. The central processing unit carries out each instruction of the program in sequence, to perform the basic arithmetical, logical, and input/output operations of the system. When buying...
Thursday,May19,
What to look for when getting a computer Monitor?
Monitor A computer monitor is an electronic device that shows pictures. A monitor is usually used to see programs on a computer. What to look for when purchasing a Monitor: Computer monitor are perhaps the most important element of your computer setup, other than the CPU itself. Unfortunately, it is also one of the...
Thursday,May19,
Different USB Flash drives
A USB flash drive consists of flash memory data storage device integrated with a USB (Universal Serial Bus) 1.1 or 2.0 interfaces. USB flash drives are typically removable and rewritable, much smaller than a floppy disk, and most weigh less than 30 g. What to look for when purchasing an USB flash drive: What is a USB Flash Drive compatible with? • ...
Thursday,May19,
Printer
In computing, a printer is a peripheral which produces a hard copy (permanent readable text and/or graphics) of documents stored in electronic form, usually on physical print media such as paper or transparencies. What to look for when purchasing a printer: Whether you are purchasing your new printer as a way to increase...
Thursday,May19,
Sound Cards
A sound card (also known as an audio card) is a computer expansion card that facilitates the input and output of audio signals to and from a computer under control of computer programs. Typical uses of sound cards include providing the audio component for multimedia applications such as music composition, editing video or audio, presentation, education, and entertainment (games)....
Thursday,May19,
Things to look for and do before buying a Video Card..
Update Your Drivers If you're thinking of replacing your card because you're having problems running a certain game, make sure you have the latest version of the drivers for your current graphics card. You will find the latest drivers for your card available for download from the manufacturer's Web site. Chipsets For the purpose of gaming, two developers of 3D graphics card...
Wednesday,May18,
5 Things to look for when buying a power suppy..
· Compatibility & Connectors The most important feature of a computer power supply is its compatibility. Older motherboards will need a 20-pin ATX connector. Newer, more advanced motherboards will need the 24-pin ATX connector in a power supply. · Molex Connectors If you look at a modern power supply in a PC, you will see it has many of those octopus-like...
Wednesday,May18,
What's a Motherboard?
A motherboard is the central printed circuit board (PCB) in many modern computers and holds many of the crucial components of the system, while providing connectors for other peripherals. The motherboard is sometimes alternatively known as the main board, system board, or, on Apple computers, the logic board.[1] It is also sometimes casually shortened to mobo. Things to look for:...
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