English for IT: Essential Vocabulary for Units 1 & 2
Unit #1: Welcome to English 4 IT
Below is a list of the vocabulary needed to pass this unit with a good score.
Key Vocabulary
- Application: A software program which allows a user to perform specific tasks such as word processing, email, accounting, or database management. Examples of popular applications include Microsoft Word, Adobe Photoshop, and Mozilla Firefox.
- Component: Any device internal to the computer, such as a primary hard disk drive or motherboard. A hardware geek is constantly upgrading
Understanding Network Computing Environments and Protocols
Network Computing Environment
Communication devices connect terminals, printers, and sometimes other computers. These devices often use character-type communication, where information is transferred as individual characters. Common examples include asynchronous serial lines (RS-232 and RS-422), synchronous serial lines (IBM bisynchronous), and parallel lines (used in online printers).
Communication Networks
Communication networks enable computer processes on different computers to communicate with
Read MoreMIPS Architecture and Datapath: Key Concepts
EC 1:
The MIPS add, addi, and sub instructions may result in an exception. True
A decoder is a logic block that has an n-bit input and 2n outputs where all outputs are asserted for each input combination. False
A multiplexor is also called a selector, where its output is one of the inputs that is selected by a control. True
A datapath element that has storage is called a State element. A register is a State element. An ALU is a Combinational element.
Asserted: The signal is logically high or true. True
An
Read MoreSystem Calls: Types and Structure
System Calls
1. Memory Management
All data must be in memory before and after processing. All instructions must be in memory in order to execute.
Activities:
- Optimizing CPU and computer response to users.
- Keeping track of which parts of memory are currently being used and by whom.
- Deciding which processes (or parts thereof) and data to move into and out of memory.
- Allocating and deallocating memory space as needed.
2. Storage Management
- Files are usually organized into directories.
- Access control on most
Understanding Data Organization: Files, Records, and Structures
Understanding Data Organization
LOGICAL RECORD – A homogeneous unit of information composed of data relating to a particular object or concept.
FIELD – An elementary unit of information within a logical record.
PHYSICAL RECORD – A unit of transmission or storage of information in auxiliary memory. It is a set of information that, depending on the characteristics of the machine, can be stored or read at one time. Often called a BLOCK. In general, a block consists of a variable number of logical records,
Read More8085 Microprocessor: Addressing Modes, Interrupts, and Pipeline
8085 Instruction Addressing Modes
These instructions transfer data between registers, memory, and registers without altering the content. Addressing modes in 8085 are classified into 5 groups:
Immediate Addressing Mode
In this mode, the 8/16-bit data is specified in the instruction itself as one of its operands. For example: MVI K, 20F means 20F is copied into register K.
Register Addressing Mode
In this mode, data is copied from one register to another. For example: MOV K, B means data in register B