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Input Output Devices
Input Device Any device that allows you to pass information from the outside world into a computer system. Output Device Any device that can take data stored in digital form and co...
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RAM and ROM
RAM Random Access Memory Memory used for the temporary storage of instructions and data. It holds information being executed by the processor. Volatile. Faster than disc. ROM Read...
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Types of Storage
Drive The device that reads and writes data from secondary storage. Media What the data is actually stored on. Magnetic Storage Examples: Hard disk drive, tape Magnetic storage use...
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Multicore Systems
A multicore processor is a single chip composed of two or more independent processing units. A CMP with two cores is commonly referred to as a dual core processor. A CMP with four...
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RISC and CISC
RISC reduced instruction set computer. CISC complex instruction set computer. RISC CPUs/computers are typically much smaller than CISC CPUs/computers. CISC reduces the number of li...
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Von Neumann and Harvard Architectures
System bus is a generic term for any buses. Von Neumann Covered in Structure and Function of the CPU. Shared memory space for instructions and data Instructions and data are stored...
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Fetch-Decode-Execute
See: Thinking Concurrently Fetch The program counter PC passes the address of the current instruction to the memory address register MAR It then increments to hold the address of t...
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Structure and Function of the CPU
Quite a lot of operations are done for 'preparedness'. Memory Data Register MDR also known as the Memory Buffer Register MBR . Communicates with the RAM over the data bus , sets an...
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Hardware
Modem Transforms digital information into analogue signals which can be transmitted through wires Translates incoming analogue signals into digital information Modulates and demodu...
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