UNIT 1 (1.2)

UNIT 1 (1.2)

1. Processor/CPU: The CPU of a computer is a piece of hardware that carries out the instructions of a computer program. It performs the basic arithmetical, logical, and input/output operations of a computer system. ​

2. Motherboards: A motherboard is one of the most essential parts of a computer system. It holds together many of the crucial components of a computer, including the central processing unit (CPU), memory and connectors for input and output devices.​

3. Hard drive: A disk drive used to read from and write to a hard disk. It saves Files etc to the hard drive.​ ​

4. solid state drivde: A solid-state drive uses a type of memory called flash memory, which is similar to RAM. This also stores data to the device it is used in so for e.g. tablets.

5. Flash memory: A USB memory stick is a data storage device that includes flash memory with an integrated USB interface.​ So for example (depending on how much storage you have on the flash memory), you have a 32gb memory stick that means you can only put up to 32 GB worth of data inside.

6. NAS Network attached storage: NAS is a file-level computer data storage server connected to a computer network providing data access to a wide range group of clients. NAS is good for serving files either by its hardware, software, or configuration.

7. Firewire: FireWire is a way to connect different pieces of equipment so they can easily and quickly share information. So for example computer to computer using the firewire extension​. Speed?​ 800mbp

8. SATA: Serial AT Attachment is a computer bus interface that connects host bus adapters to mass storage devices such as hard disk drives, optical drives, and solid-state drives.​ Speed?​ 3GB/S & 6GB/S

9. USB cables: USB short for Universal Serial Bus, is an industry standard that defines cables, connectors and communications protocols for connection, communication, and power supply between computers and devices.

10. Network cable/Ehternet cable: An ethernet cable is used to provide a device with internet connection. You have to plug it from the router to a device. This can be for devices that do not have wireless/ WIFI connection built in it.​ What speeds can they reach?​ 1000MBPS

11. Networking cable-fibre optic: e-optic communication is a method of transmitting information from one place to another by sending pulses of light through an optical fibre.​ Super fast.​ Sends data over long distances.​ Little interference from phones or other electrical devices.​ More secure because it is difficult to TAP into, you need special equipment.​ Expensive compared to wireless copper.​ Difficult to connect, you need specialised equipment.​ Optical fibre is used by many telecommunications companies to transmit telephone signals, Internet communication, and cable television signals.​

12. Random access memory: Random access memory is a form of computer data storage which stores frequently used program instructions to increase the general speed of a system.

13. Memory cache:A CPU cache is a hardware cache used by the central processing unit (CPU) of a computer to reduce the average cost, time or energy to access data from the main memory. A cache is a smaller, faster memory, closer to a processor core, which stores copies of the data from frequently used main memory locations.​ How much Cache memory does a top end CPU have? What impact does it have on the CPU?​ A top end CPU would have 25mb. It makes the memory faster.