VOS1/ES was a general-purpose OS for small to medium computers, developed as an upper system of VOS1-S and VOS1.
 VOS1/ES inherited the simplicity and mobility advantages of these systems and realized enhanced functions such as micro-mainframe coupling and multimedia processing in order to adapt to a broader range of business operations. 
 Figure 1 shows the purposes of VOS1/ES.
 
											
											
Figure 1 "Purposes of VOS1/ES"
 Hitachi announced VOS1/ES in May 1982 and started shipping it in October 1983.
 VOS1/ES had the following features:
	
		| 
			Feature
		 | 
		
			Description 
		 | 
	
	
		| 
			Integrated OS based on micro-mainframe coupling
		 | 
		
			The user can extract only the required portion of a critical business database to a workstation, and perform slip format change, conversion of data into graphics, data addition, etc. 
		 | 
	
	
		| 
			Multimedia processing 
		 | 
		
			The OS enables unified processing of office information consisting of numbers, kana characters, kanji characters, graphics, documents, etc. 
		 | 
	
	
		| 
			Increased software productivity
		 | 
		
			Achieves development of a system that is much more productive, reliable and maintainable through system development support tool EAGLE. 
		 | 
	
	
		| 
			Easy-to-use relational database 
		 | 
		
			
				- Relational database RDB1 allows the end user to directly use a database.
 
				- End-user language ACE allows the end user to perform database search without a program. 
 
			 
		 | 
	
	
		| 
			Support for diversifying networks 
		 | 
		
			
				- Allows new media, VAN and inter-company communication 
 
				- Achieves a distributed network 
 
			 
		 | 
	
	
		| 
			Powerful DB/DC (database/data communication) function 
		 | 
		
			
				- General-purpose DB/DC system with DCCM3 
 
				- Simple DB/DC system with CUTE2 
 
			 
		 | 
	
	
		| 
			Automation/laborsaving of system operation and management 
		 | 
		
			Provides HISCOPE, which systematizes software/hardware products supporting automation/laborsaving from power-on to power-off.  
			This reduces complex console operations and scheduling work. 
		 | 
	
	
		| 
			Easy-to-use workstation
		 | 
		
			Provides interactive control system ES/IEX, which enables execution of a series of business operation processing tasks (program creation, job execution, etc.) in an interactive manner using a workstation. 
		 |