Lesson Objectives To understand the basic hardware of computers and how they are made up To be able to compare performance of computers with price Computer Hardware Computer hardware is the physical components that make up the computer This includes ID: 752171
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COMPUTER HARDWARE!Slide3
Lesson Objectives
To understand the basic hardware of computers, and how they are made upTo be able to compare performance of computers with priceSlide4
Computer Hardware
Computer hardware is the physical components that make up the computer. This includesCPU (Central Processing Unit)MemoryInput devicesOutput DevicesSlide5
Binary
Binary is the number system of computers.
Think of it like a light switch, it is either ON or OFF. We show this using the numbers 1 and 0. 1 for on0 for offSlide6
Key Terms
Storage
Bit1 bit is the size of a
1 or 0Byte1 byes is string of 8 1s or 0s
Kilobyte (KB)1 KB is 1024 bytesMegabyte (MB)1MB is 1024 KBGigabyte (GB)
1 GB is 1024 MB
Terabyte
(
T
B)
1TB is 1024 GBSlide7
Computer Specifications
How many of you have bought, or helped your parents buy, a computer or laptop?How many of you have been confused by the specifications of computers?
Computer
1Computer 2ProcessorAMD
Intel XeonProcessor speed1.7 GHz3.4GHzCores2-Cores6-CoresCache Memory1MB
15MB
RAM
4GB
(8GB Max)
8 GB
(64GB Max)
Hard Drive
500GB
2TBSlide8
Computer
1
Computer 2ProcessorAMDIntel XeonProcessor speed
1.7 GHz3.4GHzCores
2-Cores6-CoresCache Memory1MB15MBRAM4GB (8GB Max)8 GB (64GB Max)Hard Drive
500GB
2TB
Price
£279.59
£2,199.99
These are 2 different types of CPU/Processor manufacturer
This is how many billions of processes it can run per second.
This essentially means the amount of processing circuits/CPUs that can run at one time
Cache (“Cash”) memory is built into the CPU and is therefore SUPER fast but SUPER expensive
RAM is quick memory which is used to run applications and programs
The hard drive is the amount of physical data which can be stored. Slide9
Task 1:
Use the internet to find the MOST and LEAST expensive computers.Rules: Desktop computers only – no laptopsMay or may not include screenComplete the work sheet. Make sure you compare the features of eachSlide10
Task 2:
Use the internet to find computers for potential clients. Your aim is to find the best value for money. Make sure you shop around, and try different websites. Slide11
Homework
Produce a 100 word summary on one of the following topics. It MUST be in your own words. Colossus -1943 “Baby” – 1948John Von Neumann – 1945