Pt 2520 Exploring Programming Languages

Topics: SQL, Programming language, Computer program Pages: 4 (782 words) Published: August 19, 2013
Week 1
Unit 1 Homework 1
Exploring Programming Languages
PT 2520

Mrs. Hubbard
Exploring Programming Languages

* Describe the role of software for computers

Software means computer instructions or data. Anything that can be stored electronically is software, in contrast to storage devices and display devices which are called hardware.

* Identify the hardware associated with a computer

Keyboard, Monitor, CPU, Mouse, HD, Motherboard, Power supply, etc..

* Describe how computers store data

A computer stores data in clusters on the hard drive. Each cluster is a pie slice-looking area that holds a certain amount of data. The amount of data that can be stored in each cluster is dependent on the operating system. All data is stored in a computer is converted to sequences of 0s and 1s.

* Explain how programs work

Is a sequence of instructions, written to perform a specified task with a computer. A computer requires programs to function, typically executing the program's instructions in a central processor. The program has an executable form that the computer can use directly to execute the instructions. 

* Differentiate among machine language, assembly language, and high-level languages

Machine Language: Uses binary
Assembly Language: Uses Mnemonics
High-Level Languages: Can create more complex programs without knowing how the CPU works, and without writing large number of low-level instructions.

* Differentiate between compilers and interpreters

Once a program has been written in High-Level language, the programmer will use a compiler or an interpreter to make the translation. A compiler takes all of the code and translates it into something a computer can understand. This compiled code is then executed or saved to a file to be executed at a later time. While an interpreter takes code and translates it line by line.

* Identify the different types of software

There are 2 general...

References: * SQL History
* Software and Hardware
* Oracle
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