Introduction - Introduction to Operating Systems
Subject and UNIT: Introduction to Operating Systems: Unit I: Introduction
Types of an operating system are a grouping that differentiates or identifies the operating system based on how it works the type of hardware it controls and the application it supports.
Introduction - Introduction to Operating Systems
Subject and UNIT: Introduction to Operating Systems: Unit I: Introduction
Operating System is a program that controls the execution of application programs. It is an interface between applications and hardware.
Introduction - Introduction to Operating Systems
Subject and UNIT: Introduction to Operating Systems: Unit I: Introduction
Computer system consists of hardware device and software that are combined to provide a tool to user for solving problems.
Memory and I/O - Digital Principles and Computer Organization
Subject and UNIT: Digital Principles and Computer Organization: Unit V: Memory and I/O
The term memory latency is used to refer to the amount of time it takes to transfer a word of data to or from the memory. The term latency is used to denote the time it takes to transfer the first word of data.
Memory and I/O - Digital Principles and Computer Organization
Subject and UNIT: Digital Principles and Computer Organization: Unit V: Memory and I/O
USB gives fast and flexible interface for connecting all kinds of peripherals. USB is playing a key role in fast growing consumer areas like digital imaging, PC telephony, and multimedia games, etc.
Memory and I/O - Digital Principles and Computer Organization
Subject and UNIT: Digital Principles and Computer Organization: Unit V: Memory and I/O
In software control data transfer, processor executes a series of instructions to carry out data transfer. For each instruction execution fetch, decode and execute phases are required.
Memory and I/O - Digital Principles and Computer Organization
Subject and UNIT: Digital Principles and Computer Organization: Unit V: Memory and I/O
An I/O interface consists of circuits which connect an, I/O device to a computer bus.The interface can be classified as serial interface or parallel interface.
Memory and I/O - Digital Principles and Computer Organization
Subject and UNIT: Digital Principles and Computer Organization: Unit V: Memory and I/O
Sometimes it is necessary to have the computer automatically execute one of a collection of special routines whenever certain conditions exists within a program or the computer system e.g.
Memory and I/O - Digital Principles and Computer Organization
Subject and UNIT: Digital Principles and Computer Organization: Unit V: Memory and I/O
I/O operations will mean a data transfer between an I/O device and memory or between an I/O device and the processor.
Memory and I/O - Digital Principles and Computer Organization
Subject and UNIT: Digital Principles and Computer Organization: Unit V: Memory and I/O
The important components of any computer system are CPU, memory and I/O devices (peripherals). The CPU fetches instructions (opcodes and operands/data) from memory, processes them and stores results in memory.
Memory and I/O - Digital Principles and Computer Organization
Subject and UNIT: Digital Principles and Computer Organization: Unit V: Memory and I/O
The virtual memory technique is used to extend the apparent size of the physical memory.
Memory and I/O - Digital Principles and Computer Organization
Subject and UNIT: Digital Principles and Computer Organization: Unit V: Memory and I/O
In a computer system the program which is to be executed is loaded in the main memory (DRAM). Processor then fetches the code and data from the main memory to execute the program.